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[ CAS No. 54166-95-9 ] {[proInfo.proName]}

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Chemical Structure| 54166-95-9
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Product Details of [ 54166-95-9 ]

CAS No. :54166-95-9 MDL No. :MFCD00234296
Formula : C7H7ClN2O Boiling Point : -
Linear Structure Formula :- InChI Key :RMDBIAFBDRRSOK-UHFFFAOYSA-N
M.W : 170.60 Pubchem ID :13675968
Synonyms :

Calculated chemistry of [ 54166-95-9 ]

Physicochemical Properties

Num. heavy atoms : 11
Num. arom. heavy atoms : 6
Fraction Csp3 : 0.0
Num. rotatable bonds : 1
Num. H-bond acceptors : 1.0
Num. H-bond donors : 2.0
Molar Refractivity : 43.95
TPSA : 69.11 Ų

Pharmacokinetics

GI absorption : High
BBB permeant : No
P-gp substrate : No
CYP1A2 inhibitor : No
CYP2C19 inhibitor : No
CYP2C9 inhibitor : No
CYP2D6 inhibitor : No
CYP3A4 inhibitor : No
Log Kp (skin permeation) : -7.33 cm/s

Lipophilicity

Log Po/w (iLOGP) : 1.0
Log Po/w (XLOGP3) : 0.01
Log Po/w (WLOGP) : 1.03
Log Po/w (MLOGP) : 1.18
Log Po/w (SILICOS-IT) : 0.9
Consensus Log Po/w : 0.82

Druglikeness

Lipinski : 0.0
Ghose : None
Veber : 0.0
Egan : 0.0
Muegge : 1.0
Bioavailability Score : 0.55

Water Solubility

Log S (ESOL) : -1.24
Solubility : 9.78 mg/ml ; 0.0573 mol/l
Class : Very soluble
Log S (Ali) : -1.01
Solubility : 16.6 mg/ml ; 0.0971 mol/l
Class : Very soluble
Log S (SILICOS-IT) : -2.24
Solubility : 0.984 mg/ml ; 0.00577 mol/l
Class : Soluble

Medicinal Chemistry

PAINS : 0.0 alert
Brenk : 1.0 alert
Leadlikeness : 1.0
Synthetic accessibility : 1.12

Safety of [ 54166-95-9 ]

Signal Word:Warning Class:
Precautionary Statements:P261-P264-P270-P271-P280-P301+P312-P302+P352-P304+P340-P305+P351+P338-P330-P332+P313-P337+P313-P362-P403+P233-P405-P501 UN#:
Hazard Statements:H302-H312-H315-H319-H332-H335 Packing Group:
GHS Pictogram:

Application In Synthesis of [ 54166-95-9 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 54166-95-9 ]

[ 54166-95-9 ] Synthesis Path-Downstream   1~87

  • 1
  • [ 54166-95-9 ]
  • [ 4755-77-5 ]
  • [ 54166-68-6 ]
YieldReaction ConditionsOperation in experiment
With pyridine
37 2'-Carbamoyl-3'-chlorooxanilic acid ethyl ester. 25. EXAMPLE 37 2'-Carbamoyl-3'-chlorooxanilic acid ethyl ester. 25. 2-Amino-6-chlorobenzamide (4.26 g, 0.025 mole) is condensed with 3.1 ml (0.0275 mole) of ethyl oxalyl chloride in a manner similar to example 3, giving 5.28 g of the title compound, m.p. 190°-193° C., after crystallization from ethanol. Elemental Analysis for C11 H11 CIN2 O4: Calc'd: C, 48.8; H, 4.10; N, 10.35. Found: C, 49.08; H, 4.05; N, 10.72.
20 2'-Carbamoyl-3'-chlorooxanilic acid ethyl ester. 25 EXAMPLE 20 2'-Carbamoyl-3'-chlorooxanilic acid ethyl ester. 25 2-Amino-6-chlorobenzamide (4.26 g., 0.025 mole) is condensed with 3.1 ml. (0.0275 mole) of ethyl oxalyl chloride in a manner similar to example 12, giving 5.28 g. of the title compound, m.p. 190°-193° C., after crystallization from ethanol. Elemental Analysis for C11 H11 CLN2 O4: Calc'd: C, 48.8; H, 4.10; N, 10.35. Found: C, 49.08; H, 4.05; N, 10.72.
20 2'-Carbamoyl-3'-chlorooxanilic acid ethyl ester. 25 EXAMPLE 20 2'-Carbamoyl-3'-chlorooxanilic acid ethyl ester. 25 2-Amino-6-chlorobenzamide (4.26 g., 0.025 mole) is condensed with 3.1 ml. (0.0275 mole) of ethyl oxalyl chloride in a manner similar to example 12, giving 5.28 g. of the title compound, m.p. 190°-193° C., after crystallization from ethanol. Elemental Analysis for C11 H11 CLN2 O4: Calc'd: C, 48.8; H, 4.10; N, 10.35: Found: C, 49.08; H, 4.05; N, 10.72.
20 2'-Carbamyl-3'-chlorooxanilic acid ethyl ester. 25. EXAMPLE 20 2'-Carbamyl-3'-chlorooxanilic acid ethyl ester. 25. 2-Amino-6-chlorobenzamide (4.26 g., 0.025 mole) is condensed with 3.1 ml. (0.0275 mole) of ethyl oxalyl chloride in a manner similar to example 12, giving 5.28 g. of the title compound, m.p. 190°-193° C., after crystallization from ethanol. Elemental Analysis for C11 H11 ClN2 O4: Calc'd: C, 48.8; H, 4.10; N, 10.35. Found: C, 49.08; H, 4.05; N, 10.72.
37 2'-Carbamoyl-3'-chlorooxanilic acid ethyl ester. 25 EXAMPLE 37 2'-Carbamoyl-3'-chlorooxanilic acid ethyl ester. 25 2-Amino-6-chlorobenzamide (4.26 g, 0.025 mole) is condensed with 3.1 ml (0.0275 mole) of ethyl oxalyl chloride in a manner similar to example 3, giving 5.28 g of the title compound, m.p. 190°-193° C., after crystallization from ethanol. Elemental Analysis for C11 H11 CIN2 O4: Calc'd: C, 48.8; H, 4.10; N, 10.35. Found: C, 49.08; H, 4.05; N, 10.72.
37 2'-Carbamoyl-3'-chlorooxanilic acid ethyl ester. 25 EXAMPLE 37 2'-Carbamoyl-3'-chlorooxanilic acid ethyl ester. 25 2-Amino-6-chlorobenzamide (4.26 g, 0.025 mole) is condensed with 3.1 ml (0.0275 mole) of ethyl oxalyl chloride in a manner similar to example 3, giving 5.28 g of the title compound, m.p. 190°-193°C., after crystallization from ethanol. Elemental Analysis for C11 H11 CIN2 O4: Calc'd: C, 48.8; H, 4.10; N, 10.35. Found: C, 49.08; H, 4.05; N, 10.72.

  • 2
  • [ 54166-95-9 ]
  • [ 14301-31-6 ]
  • 2-Chloro-6-([2-(3,4-dimethoxy-phenyl)-ethylcarbamoyl]-methyl}-amino)-benzamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
32% at 160℃; for 5h;
  • 3
  • [ 54166-95-9 ]
  • [ 29671-92-9 ]
  • [ 50440-85-2 ]
YieldReaction ConditionsOperation in experiment
100% With dimethylsulfone at 160℃; for 1h;
  • 4
  • [ 63904-41-6 ]
  • [ 54166-95-9 ]
YieldReaction ConditionsOperation in experiment
With sodium hydroxide In methanol Yield given;
YieldReaction ConditionsOperation in experiment
2-Chlor-6-nitro-benzonitril, Bzl., W., Fe;
  • 8
  • [ 54166-95-9 ]
  • 5-chloro-2-[3-(4-phenyl-3,6-dihydro-1(2H)-pyridinyl)propyl]-4(3H)-quinazolinone [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1: pyridine / CH2Cl2 / 1.5 h / 0 °C 2: dimethylformamide / 24 h / 20 °C 3: sodium hydroxide / dioxane; H2O / 15 h / 20 °C
Multi-step reaction with 3 steps 1: pyridine / CH2Cl2 / 1.5 h / 0 °C 2: Et3N / dimethylformamide / 24 h / 20 °C 3: aq. NaOH / dioxane / 15 h / 20 °C
  • 10
  • [ 54166-95-9 ]
  • [ 78754-83-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1: 78 percent / 1.5 h / 190 °C 2: 97 percent / fuming HNO3, conc. H2SO4 / -10 deg C, then to room temperature, then heating, 10 min 3: 84 percent / NH3 / butan-1-ol / 24 h / 120 - 130 °C
Multi-step reaction with 3 steps 1: 78 percent / fusion 2: 97 percent / fumic HNO3, conc. H2SO4 / 1.) -10 deg C; 2.) warming 3: 84 percent / NH3 / butan-1-ol / 24 h / 140 - 150 °C / sealed vessel
  • 11
  • [ 54166-95-9 ]
  • [ 78754-82-2 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1: 78 percent / 1.5 h / 190 °C 2: 97 percent / fuming HNO3, conc. H2SO4 / -10 deg C, then to room temperature, then heating, 10 min
Multi-step reaction with 2 steps 1: 78 percent / fusion 2: 97 percent / fumic HNO3, conc. H2SO4 / 1.) -10 deg C; 2.) warming
  • 12
  • [ 54166-95-9 ]
  • [ 78754-85-5 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1: 78 percent / 1.5 h / 190 °C 2: 97 percent / fuming HNO3, conc. H2SO4 / -10 deg C, then to room temperature, then heating, 10 min 3: 67 percent / 20percent aq. tetraethylammnium hydroxide / H2O / 30 - 35 °C
Multi-step reaction with 3 steps 1: 78 percent / fusion 2: 97 percent / fumic HNO3, conc. H2SO4 / 1.) -10 deg C; 2.) warming 3: 67 percent / tetraethylammonium hydroxide / 30 - 35 °C
  • 13
  • [ 54166-95-9 ]
  • [ 78754-86-6 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1: 78 percent / 1.5 h / 190 °C 2: 97 percent / fuming HNO3, conc. H2SO4 / -10 deg C, then to room temperature, then heating, 10 min 3: 67 percent / 20percent aq. tetraethylammnium hydroxide / H2O / 30 - 35 °C 4: 91 percent / NH3 / butan-1-ol / 2 h / 125 °C
Multi-step reaction with 4 steps 1: 78 percent / fusion 2: 97 percent / fumic HNO3, conc. H2SO4 / 1.) -10 deg C; 2.) warming 3: 67 percent / tetraethylammonium hydroxide / 30 - 35 °C 4: 91 percent / NH3 / butan-1-ol / 24 h / 130 - 140 °C / sealed vessel
  • 14
  • [ 54166-95-9 ]
  • [ 78754-87-7 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1: 78 percent / 1.5 h / 190 °C 2: 97 percent / fuming HNO3, conc. H2SO4 / -10 deg C, then to room temperature, then heating, 10 min 3: 67 percent / 20percent aq. tetraethylammnium hydroxide / H2O / 30 - 35 °C 4: 89 percent / butan-1-ol / 24 h / 140 °C
Multi-step reaction with 4 steps 1: 78 percent / fusion 2: 97 percent / fumic HNO3, conc. H2SO4 / 1.) -10 deg C; 2.) warming 3: 67 percent / tetraethylammonium hydroxide / 30 - 35 °C 4: 89 percent / butan-1-ol / 24 h / 140 - 150 °C / sealed vessel
  • 15
  • [ 54166-95-9 ]
  • [ 121496-89-7 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1: 78 percent / 1.5 h / 190 °C 2: 97 percent / fuming HNO3, conc. H2SO4 / -10 deg C, then to room temperature, then heating, 10 min 3: 84 percent / NH3 / butan-1-ol / 24 h / 120 - 130 °C 4: 52 percent / K2CO3 / dimethylformamide / 6 h / 60 °C
  • 16
  • [ 54166-95-9 ]
  • [ 121496-97-7 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 5 steps 1: 78 percent / 1.5 h / 190 °C 2: 97 percent / fuming HNO3, conc. H2SO4 / -10 deg C, then to room temperature, then heating, 10 min 3: 67 percent / 20percent aq. tetraethylammnium hydroxide / H2O / 30 - 35 °C 4: 91 percent / NH3 / butan-1-ol / 2 h / 125 °C 5: 1)conc. HCl, H2, 2) pyridine / 1) 10percent Pd-C / 1) EtOH, 52 psi, 12 h, 2) reflux, 1 h
  • 17
  • [ 54166-95-9 ]
  • [ 121496-90-0 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1: 78 percent / 1.5 h / 190 °C 2: 97 percent / fuming HNO3, conc. H2SO4 / -10 deg C, then to room temperature, then heating, 10 min 3: 84 percent / NH3 / butan-1-ol / 24 h / 120 - 130 °C 4: 40 percent / K2CO3 / dimethylformamide / 6 h / 60 °C
  • 18
  • [ 54166-95-9 ]
  • [ 121496-98-8 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 5 steps 1: 78 percent / 1.5 h / 190 °C 2: 97 percent / fuming HNO3, conc. H2SO4 / -10 deg C, then to room temperature, then heating, 10 min 3: 84 percent / NH3 / butan-1-ol / 24 h / 120 - 130 °C 4: 52 percent / K2CO3 / dimethylformamide / 6 h / 60 °C 5: 1)conc. HCl, H2, 2) pyridine / 1) 10percent Pd-C / 1) EtOH, 52 psi, 12 h, 2) reflux, 1 h
  • 19
  • [ 54166-95-9 ]
  • [ 121496-91-1 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1: 78 percent / 1.5 h / 190 °C 2: 97 percent / fuming HNO3, conc. H2SO4 / -10 deg C, then to room temperature, then heating, 10 min 3: 84 percent / NH3 / butan-1-ol / 24 h / 120 - 130 °C 4: 81 percent / K2CO3 / dimethylformamide / 6 h / 60 °C
  • 20
  • [ 28144-70-9 ]
  • [ 54166-95-9 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1: 100 percent / SCl2 2: SCl2 / Heating 3: aq. NaOH / methanol
  • 21
  • [ 33800-08-7 ]
  • [ 54166-95-9 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1: SCl2 / Heating 2: aq. NaOH / methanol
  • 22
  • [ 54166-95-9 ]
  • [ 103884-20-4 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1: 100 percent / Me2SO2 / 1 h / 160 °C 2: 100 percent / conc. H2SO4, fuming HNO3 / 1.) a) from -10 to RT, b) reflux, 10 min 3: 98 percent / NH3 / butan-1-ol / 24 h / 180 °C
  • 23
  • [ 54166-95-9 ]
  • [ 103884-19-1 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1: 100 percent / Me2SO2 / 1 h / 160 °C 2: 100 percent / conc. H2SO4, fuming HNO3 / 1.) a) from -10 to RT, b) reflux, 10 min
  • 24
  • [ 54166-95-9 ]
  • [ 103884-23-7 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1: 100 percent / Me2SO2 / 1 h / 160 °C 2: 100 percent / conc. H2SO4, fuming HNO3 / 1.) a) from -10 to RT, b) reflux, 10 min 3: 100 percent / butan-1-ol / 24 h / 130 °C
  • 25
  • [ 54166-95-9 ]
  • [ 78754-84-4 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1: 78 percent / fusion 2: 97 percent / fumic HNO3, conc. H2SO4 / 1.) -10 deg C; 2.) warming 3: 84 percent / NH3 / butan-1-ol / 24 h / 140 - 150 °C / sealed vessel 4: 1.) H2, conc. HCl / 1.) 10percent Pd on charcoal / 1.) 2-methoxyethanol; 2.) room temperature
  • 26
  • [ 41731-23-1 ]
  • [ 54166-95-9 ]
  • 6-chloro-2-methyl-5H-[1,3]-thiazolo[2,3-b]quinazolin-5-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
EXAMPLE 12 2-methyl-6-chloro-5H-thiazolo-(2,3-b)-quinazolin-5-one (compound 14) 10.2 g of 6-chloroanthranilamide and 10.74 g of <strong>[41731-23-1]2-bromo-5-methylthiazole</strong> were stirred at 140 C. for 2 hours. After working up in the conventional manner there was obtained 11.7 g (78%) of the above compound; m.p. 235-236 C.
  • 27
  • [ 6575-11-7 ]
  • [ 54166-95-9 ]
YieldReaction ConditionsOperation in experiment
98% With water; potassium carbonate; In water; at 150℃; for 0.5h;Microwave irradiation; General procedure: Adapted from a literature procedure,1 the appropriate organonitrile (1.0 eq.) and K2CO3(0.2eq.)wereaddedtoamicrowavetubewithastir-barwithdeionizedwater(8.5mLpermmolsubstrate).Afterirradiationundermicrowaveat150Cfor30minutes,thereactionmixturewascooled,extractedwithEtOAc(320mL),thecombinedphasesdriedoverMgSO4andexcesssolventremovedinvacuo.TheresiduewaspurifiedbyFCC,ifrequired,togivethetitlecompound.
79% With water extract of pomelo, peel; at 150℃; for 0.5h;Sealed tube; Green chemistry; General procedure: Benzonitrile 1a (103 mg, 1.0 mmol) and WEPPA (2.0 mL) were added into a 10-mL closed tubewith a stir bar. Then the reaction was stirred in a closed vessel synthesis reactor at 150 C for 0.5 h.After cooling to ambient temperature, the resulting precipitate was collected by filtration, washed withice water, and further dried in a vacuum drying oven. The filtrate was evaporated under reducedpressure. The resultant residue was purified by silica gel column chromatography (eluent: petroleumether (35-60 C)/EtOAc = 2:1 to 0:1, v/v). Finally, these two parts were combined to produce the desiredbenzamide 2a with a 94% yield.
  • 28
  • [ 54166-95-9 ]
  • [ 590-86-3 ]
  • [ 1086673-24-6 ]
YieldReaction ConditionsOperation in experiment
82% With C72H61O4P In toluene at -45℃; for 24h; Inert atmosphere; Molecular sieve; optical yield given as %ee; enantioselective reaction;
  • 29
  • [ 5390-04-5 ]
  • [ 54166-95-9 ]
  • [ 1208003-36-4 ]
YieldReaction ConditionsOperation in experiment
85% With platinum(II) bromde In methanol at 80℃; for 12h; Inert atmosphere;
  • 30
  • [ 54166-95-9 ]
  • [ 536-74-3 ]
  • [ 1246861-70-0 ]
YieldReaction ConditionsOperation in experiment
90% With [bis(trifluoromethanesulfonyl)imidate](triphenylphosphine)gold(I) In toluene at 100℃; for 24h; Inert atmosphere;
  • 31
  • [ 20829-96-3 ]
  • [ 54166-95-9 ]
YieldReaction ConditionsOperation in experiment
49% With ethanol; ammonia; at 20℃; for 2h; Example 32. Preparation of 5-chloro-2-(4-(2-hydroxyethoxy)-3,5-dimethyIphenyl)quinazolin-4(3H)-one [0266] A mixture of <strong>[20829-96-3]2-amino-6-chlorobenzoic acid</strong> (5.00 g, 29.1 mmol) in acetonitrile (50.0 ml_) was stirred at room temperature under nitrogen. Pyridine (4.72 mL, 58.3 mmol) was added, followed by drop-wise addition of triphosgene (2.85 g, 9.60 mmol) in CH2CI2 (20.0 mL). After the addition, the mixture was heated at 55C for 2 hours, then cooled to 25C and stirred overnight. Water (100 mL) was added to quench, the mixture was filtered, and washed with cold CH2CI2, to provide 5-chloro-1/-/-benzo[d][1 ,3]oxazine-2,4-dione (3.54 g, 62%) as a white solid.[0267] A mixture of <strong>[20829-96-3]5-chloro-1H-benzo[d][1,3]oxazine-2,4-dione</strong> (3.50 g, 17.7 mmol) and 2 M NH3 in EtOH (11.5 mL, 23.0 mmol) and EtOH (10.0 mL) was stirred at room temperature for 2 hours. The volatiles were removed under reduced pressure, the residue was triturated with water (50 mL), and the solid was filtered, to provide 2-amino-6-chlorobenzamide (1.60 g, 49%) as a tan solid.[0268] A mixture of 2-amino-6-chlorobenzamide (0.490 g, 3.00 mmol), 4-(2-(tert-butyldimethylsilyloxy)ethoxy)-3,5-dimethylbenzaldehyde (0.925 g, 3.00 mmol), NaHSO3 (94%, 0.468 g, 4.50 mmol), and p-TsOH«H2O (0.171 g, 0.900 mmol) in DMA (10.0 mL) was heated at 1400C for 16 hours. The mixture was cooled to room temperature and the solvent was removed under reduced pressure. The residue was diluted with EtOAc (50 mL), washed with water (50 mL), then brine (50 mL), dried over anhydrous Na2SO4, filtered, and the solvent was removed under reduced pressure, to provide 2-(4-(2-(tert-butyldimethylsilyloxy)ethoxy)-3,5-dimethylphenyl)-5-chloroquinazolin-4(3H)-one as an off-white solid. The crude material was used directly in the next step without characterization.[0269] Following the method described for desilylation using TBAF in Example 33 below, the title compound was made from 2-(4-(2-(tert- butyldimethylsilyloxy)ethoxy)-3,5-dimethylphenyl)-5-chloroquinazolin-4(3H)-one in 21% yield and was isolated as a white solid. 1H NMR (300 MHz, DMSO-Cf6): delta 12.32 (s, 1 H), 7.90 (s, 2H), 7.82-7.55 (m, 2H), 7.48 (dd, J = 7.54, 1.35 Hz, 1 H), 4.90 (t, J = 5.51 Hz, 1 H), 3.86 (t, J = 4.90 Hz, 2H), 3.77-3.68 (m, 2H), 2.32 (s, 6H). MS (APCI) m/z 345 [Ci8Hi7CIN2O3+H]+.
49% With ethanol; ammonia; at 20℃; for 2h; A mixture of <strong>[20829-96-3]5-chloro-1H-benzo[d][1,3]oxazine-2,4-dione</strong> (3.50 g, 17.7 mmol) and 2 M NH3 in EtOH (11.5 mL, 23.0 mmol) and EtOH (10.0 mL) was stirred at room temperature for 2 hours. The volatiles were removed under reduced pressure, the residue was triturated with water (50 mL), and the solid was filtered, to provide 2-amino-6-chlorobenzamide (1.60 g, 49%) as a tan solid
With ammonium carbonate; In 1,4-dioxane; at 60℃; General procedure: Compound 13 was prepared according to the procedurepreviously reported.37 A suspension of isatoic anhydride 12 (40mmol), ammonium carbonate (160 mmol), and 1,4-dioxane(150 mL) was heated at 60 C. After being stirred for 5-8 h,the reaction mixture was cooled to room temperature andevaporated under reduced pressure, and then water (200 mL)was added to the residue, which was extracted three times withEtOAc (300 mL). The organic layer was washed with brine(100 mL), dried over anhydrous Na2SO4, filtered, andconcentrated to afford compound 13 in yields of 80-85%.
With ammonium carbonate; In 1,4-dioxane; at 60℃; for 8h; General procedure: A suspension of isatoic anhydride (35 mmol), ammonium carbonate (140 mmol), and 1,4-dioxane (150 mL) was heated at 60 C. After stirring for 8 h, the reaction mixture was cooled to room temperature and evaporated underreduced pressure, and then water (200 mL) was added to the residue, which was extracted with DCM (80 mL × 3). The organic layerwas dried over anhydrous Na2SO4, and concentrated to give compound 3 in yield of 84%.
With ammonium carbonate; In 1,4-dioxane; at 60℃; for 8h; General procedure: A suspension of substituted isatoic anhydride (35 mmol), ammonium carbonate (140 mmol), and 1,4-dioxane (150 mL) was heated at 60 C. After stirring for 8 h, the reaction mixture was cooled to room temperature and evaporated under reduced pressure, and then water (200 mL) was added to the residue, which was extracted with CH2Cl2 (380 mL). The organic layer was dried over anhydrous Na2SO4 and concentrated to give compounds 9 in yields of 63-94%.

  • 32
  • [ 1044872-73-2 ]
  • [ 54166-95-9 ]
  • [ 1253732-65-8 ]
YieldReaction ConditionsOperation in experiment
With toluene-4-sulfonic acid; sodium hydrogensulfite In N,N-dimethyl acetamide at 140℃; for 16h; 32 Example 32. Preparation of 5-chloro-2-(4-(2-hydroxyethoxy)-3,5-dimethyIphenyl)quinazolin-4(3H)-one [0266] A mixture of 2-amino-6-chlorobenzoic acid (5.00 g, 29.1 mmol) in acetonitrile (50.0 ml_) was stirred at room temperature under nitrogen. Pyridine (4.72 mL, 58.3 mmol) was added, followed by drop-wise addition of triphosgene (2.85 g, 9.60 mmol) in CH2CI2 (20.0 mL). After the addition, the mixture was heated at 55°C for 2 hours, then cooled to 25°C and stirred overnight. Water (100 mL) was added to quench, the mixture was filtered, and washed with cold CH2CI2, to provide 5-chloro-1/-/-benzo[d][1 ,3]oxazine-2,4-dione (3.54 g, 62%) as a white solid.[0267] A mixture of 5-chloro-1H-benzo[d][1,3]oxazine-2,4-dione (3.50 g, 17.7 mmol) and 2 M NH3 in EtOH (11.5 mL, 23.0 mmol) and EtOH (10.0 mL) was stirred at room temperature for 2 hours. The volatiles were removed under reduced pressure, the residue was triturated with water (50 mL), and the solid was filtered, to provide 2-amino-6-chlorobenzamide (1.60 g, 49%) as a tan solid.[0268] A mixture of 2-amino-6-chlorobenzamide (0.490 g, 3.00 mmol), 4-(2-(tert-butyldimethylsilyloxy)ethoxy)-3,5-dimethylbenzaldehyde (0.925 g, 3.00 mmol), NaHSO3 (94%, 0.468 g, 4.50 mmol), and p-TsOH«H2O (0.171 g, 0.900 mmol) in DMA (10.0 mL) was heated at 1400C for 16 hours. The mixture was cooled to room temperature and the solvent was removed under reduced pressure. The residue was diluted with EtOAc (50 mL), washed with water (50 mL), then brine (50 mL), dried over anhydrous Na2SO4, filtered, and the solvent was removed under reduced pressure, to provide 2-(4-(2-(tert-butyldimethylsilyloxy)ethoxy)-3,5-dimethylphenyl)-5-chloroquinazolin-4(3H)-one as an off-white solid. The crude material was used directly in the next step without characterization.[0269] Following the method described for desilylation using TBAF in Example 33 below, the title compound was made from 2-(4-(2-(tert- butyldimethylsilyloxy)ethoxy)-3,5-dimethylphenyl)-5-chloroquinazolin-4(3H)-one in 21% yield and was isolated as a white solid. 1H NMR (300 MHz, DMSO-Cf6): δ 12.32 (s, 1 H), 7.90 (s, 2H), 7.82-7.55 (m, 2H), 7.48 (dd, J = 7.54, 1.35 Hz, 1 H), 4.90 (t, J = 5.51 Hz, 1 H), 3.86 (t, J = 4.90 Hz, 2H), 3.77-3.68 (m, 2H), 2.32 (s, 6H). MS (APCI) m/z 345 [Ci8Hi7CIN2O3+H]+.
With sodium hydrogen sulfate; toluene-4-sulfonic acid In N,N-dimethyl acetamide at 140℃; for 16h; 27 Preparation of 5-chloro-2-(4-(2-hydroxyethoxy)-3,5-dimethylphenyl)quinazolin-4(3H)-one A mixture of 2-amino-6-chlorobenzamide (0.490 g, 3.00 mmol), 4-(2-(tert-butyldimethylsilyloxy)ethoxy)-3,5-dimethylbenzaldehyde (0.925 g, 3.00 mmol), NaHSO3 (94%, 0.468 g, 4.50 mmol), and p-TsOH.H2O (0.171 g, 0.900 mmol) in DMA (10.0 mL) was heated at 140° C. for 16 hours. The mixture was cooled to room temperature and the solvent was removed under reduced pressure. The residue was diluted with EtOAc (50 mL), washed with water (50 mL), then brine (50 mL), dried over anhydrous Na2SO4, filtered, and the solvent was removed under reduced pressure, to provide 2-(4-(2-(tert-butyldimethylsilyloxy)ethoxy)-3,5-dimethylphenyl)-5-chloroquinazolin-4(3H)-one as an off-white solid
  • 33
  • [ 59046-72-9 ]
  • [ 54166-95-9 ]
  • [ 1364405-95-7 ]
  • (R)-7-chloro-4b,5-dihydro-12-phenylisoquinolino[2,1-a]quinazolin-6-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
With methyl(triphenylphosphine)gold(I); (S)-3,3'-bis(9-anthracenyl)-1,1′-binaphthyl-2,2′-diyl hydrogenphosphate In 1,2-dichloro-ethane at -5 - 20℃; for 80h; Molecular sieve; Inert atmosphere; optical yield given as %ee; enantioselective reaction;
  • 34
  • C16H13Cl2NO3S [ No CAS ]
  • [ 54166-95-9 ]
  • [ 1374021-21-2 ]
YieldReaction ConditionsOperation in experiment
90% With (R)-3,3'-bis(9-anthracenyl)-1,1'-binaphthyl-2,2'-diyl hydrogenphosphate In chloroform at 10℃; for 36h; Inert atmosphere; optical yield given as %ee; enantioselective reaction;
  • 35
  • [ 2148-56-3 ]
  • [ 54166-95-9 ]
YieldReaction ConditionsOperation in experiment
83% To a solution of <strong>[2148-56-3]2-amino-6-chlorobenzoic acid</strong> (2.00 g, 11.65 mmol) in anhydrous THF (20 mL) were added 4-methylmorpholine (1.40 mL, 12.82 mmol), HOBT (1.73 g, 12.82 mmol), and EDCI (2.45 g, 12.82 mmol); the reaction mixture was stirred at room temperature for 30 minutes. 50% (v/v) Ammonium hydroxide solution (10 mL, 132.0 mmol) was added and the mixture was stirred at room temperature for 23 hours. Solvent was evaporated to about 20 mL, poured into aqueous NaHCO3 solution (200 mL) and extracted with ethyl acetate (7*100 mL). The organic phase was washed with water (3*100 mL), dried (Na2SO4), filtered, and evaporated, to give 2-amino-6-chlorobenzamide as a white solid. Yield: 1.65 g (83%)
83% Example 87 Preparation of 5-Chloro-2-(3,5-dimethyl-4-(2-(pyrrolidin-1-yl)ethoxy)phenyl)quinazolin-4(3H)-one To a solution of <strong>[2148-56-3]2-amino-6-chlorobenzoic acid</strong> (2.00 g, 11.65 mmol) in anhydrous THF (20 mL) were added 4-methylmorpholine (1.40 mL, 12.82 mmol), HOBT (1.73 g, 12.82 mmol), and EDCl (2.45 g, 12.82 mmol); the reaction mixture was stirred at room temperature for 30 minutes. 50% (v/v) Ammonium hydroxide solution (10 mL, 132.0 mmol) was added and the mixture was stirred at room temperature for 23 hours. Solvent was evaporated to about 20 mL, poured into aqueous NaHCO3 solution (200 mL) and extracted with ethyl acetate (7*100 mL). The organic phase was washed with water (3*100 mL), dried (Na2SO4), filtered, and evaporated, to give 2-amino-6-chlorobenzamide as a white solid. Yield: 1.65 g (83%).
With ammonium chloride; benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine; In dimethyl sulfoxide; at 20℃; for 15h; General procedure: The syntheses of compounds 3a-3x were mainly referred to literature method [35]. A mixture of 1a-1q, 1w, 1x (2mmol), EDC?HCl (575mg, 3mmol), HOBt (446mg, 3.3mmol), NH4Cl (348mg, 6.5mmol) and DIPEA (2.3mL, 13mmol) in DMSO (7mL) was stirred at room temperature for 15h. The mixture was extracted with EtOAc three times, and the combined organic layers were washed with brine, dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure to afford 3a-3q, 3w, 3x. A mixture of 2r-2v (2mmol) and NH3·H2O (25-28wt%, 80mmol) in sealed tube was heated at 100C for 12h. The mixture was cooled to room temperature and extracted with EtOAc three times. The combined organic layers were washed with brine, dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure to afford 3r-3v.
  • 36
  • [ 54166-95-9 ]
  • [ 1246250-78-1 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1: sodium hydrogensulfite; toluene-4-sulfonic acid / N,N-dimethyl acetamide / 23 h / 120 °C / Inert atmosphere 2: carbon tetrabromide; triphenylphosphine / N,N-dimethyl-formamide / 27 h / 20 °C
Multi-step reaction with 2 steps 1: toluene-4-sulfonic acid; sodium hydrogensulfite / N,N-dimethyl acetamide / 23 h / 120 °C / Inert atmosphere 2: carbon tetrabromide; triphenylphosphine / N,N-dimethyl-formamide / 27 h / 20 °C
  • 37
  • [ 54166-95-9 ]
  • [ 1246250-76-9 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1: sodium hydrogensulfite; toluene-4-sulfonic acid / N,N-dimethyl acetamide / 23 h / 120 °C / Inert atmosphere 2: carbon tetrabromide; triphenylphosphine / N,N-dimethyl-formamide / 27 h / 20 °C 3: N,N-dimethyl-formamide / 25 h / 20 °C / Inert atmosphere
Multi-step reaction with 3 steps 1: toluene-4-sulfonic acid; sodium hydrogensulfite / N,N-dimethyl acetamide / 23 h / 120 °C / Inert atmosphere 2: carbon tetrabromide; triphenylphosphine / N,N-dimethyl-formamide / 27 h / 20 °C 3: N,N-dimethyl-formamide / 25 h / 20 °C / Inert atmosphere
  • 38
  • [ 1039948-89-4 ]
  • [ 54166-95-9 ]
  • [ 1246250-77-0 ]
YieldReaction ConditionsOperation in experiment
64% With toluene-4-sulfonic acid; sodium hydrogensulfite; In N,N-dimethyl acetamide; at 120℃; for 23.0h;Inert atmosphere; <strong>[1039948-89-4]4-(2-hydroxyethoxy)-3,5-dimethylbenzaldehyde</strong> (0.70 g, 3.58 mmol), 2-amino-6-chlorobenzamide (0.60 g, 3.51 mmol), sodium bisulfite (0.71 g, 3.86 mmol) and p-toluenesulfonic acid monohydrate (0.133 g, 0.699 mmol) in anhydrous N,N-dimethyl acetamide (14 mL) were heated at 120 C. under nitrogen for 23 hours. The solvent was evaporated and the white solid was triturated with water (50 mL), filtered, and washed with water (20 mL). The solid was dried in vacuo and triturated with Et2O (20 mL), filtered, and dried to give 5-chloro-2-(4-(2-hydroxyethoxy)-3,5-dimethylphenyl)quinazolin-4(3H)-one as a white solid. Yield: 0.77 g, (64%)
64% With toluene-4-sulfonic acid; sodium hydrogensulfite; In N,N-dimethyl acetamide; at 120℃; for 23.0h;Inert atmosphere; 4-(2-Hydroxyethoxy)-3,5-dimethylbenzaldehyde (0.70 g, 3.58 mmol), 2-amino-6-chlorobenzamide (0.60 g, 3.51 mmol), sodium bisulfite (0.71 g, 3.86 mmol) and p-toluenesulfonic acid monohydrate (0.133 g, 0.699 mmol) in anhydrous N,N-dimethyl acetamide (14 mL) were heated at 120 C. under nitrogen for 23 hours. The solvent was evaporated and the white solid was triturated with water (50 mL), filtered, and washed with water (20 mL). The solid was dried in vacuo and triturated with Et2O (20 mL), filtered, and dried to give 5-chloro-2-(4-(2-hydroxyethoxy)-3,5-dimethylphenyl)quinazolin-4(3H)-one as a white solid. Yield: 0.77 g, (64%).
  • 39
  • [ 54166-95-9 ]
  • [ 197638-78-1 ]
  • [ 1246249-84-2 ]
YieldReaction ConditionsOperation in experiment
With toluene-4-sulfonic acid; sodium hydrogensulfite at 140℃; for 18h; 41 Preparation of 5-Chloro-2-(4-(4-isopropylpiperazin-1-yl)phenyl)quinazolin-4(3H)-one A solution of 2-amino-6-chlorobenzamide (0.314 g, 1.85 mmol) and 4-(4-isopropylpiperazin-1-yl)benzaldehyde (0.430 g, 1.85 mmol) in DMA (25 mL) were treated with p-TsOH (0.035 g, 0.185 mmol) and NaHSO3 (0.212 g, 2.04 mmol), and the mixture was heated at 140° C. for 18 hours. Then, the mixture was cooled, diluted with CH2Cl2 (200 mL), and washed with saturated NaHCO3 (100 mL). The organic phase was dried over anhydrous MgSO4, filtered, concentrated, and purified by silica gel chromatography, eluting with 1:1 CH2Cl2/92:7:1 CHCl3/MeOH/concentrated NH4OH to 100% 92:7:1 CHCl3/MeOH/concentrated NH4OH to 100% 6:3:1 CHCl3/MeOH/concentrated NH4OH. The resulting solids were rechromatographed with 9:1 CH2Cl2/MeOH to afford the title compound as a white solid. 1H NMR (300 MHz, DMSO-d6): δ 12.24 (br s, 1H), 8.11 (d, J=8.8 Hz, 2H), 7.66-7.71 (m, 1H), 7.59 (d, J=7.9 Hz, 1H), 7.42 (d, J=7.4 Hz, 1H), 7.03 (d, J=8.6 Hz, 2H), 3.28-3.34 (m, 4H), 2.64-2.73 (m, 1H), 2.55-2.59 (m, 4H), 1.01 (d, J=6.4 Hz, 6H). ESI MS m/z 383 [M+H]+
With toluene-4-sulfonic acid; sodium hydrogensulfite In N,N-dimethyl acetamide at 140℃; for 18h; 42 Preparation of 5-Chloro-2-(4-(4-isopropylpiperazin-1-yl)phenyl)quinazolin-4(3H)-one Example 42 Preparation of 5-Chloro-2-(4-(4-isopropylpiperazin-1-yl)phenyl)quinazolin-4(3H)-one A solution of 2-amino-6-chlorobenzamide (0.314 g, 1.85 mmol) and 4-(4-isopropylpiperazin-1-yl)benzaldehyde (0.430 g, 1.85 mmol) in DMA (25 mL) were treated with p-TsOH (0.035 g, 0.185 mmol) and NaHSO3 (0.212 g, 2.04 mmol), and the mixture was heated at 140° C. for 18 hours. Then, the mixture was cooled, diluted with CH2Cl2 (200 mL), and washed with saturated NaHCO3 (100 mL). The organic phase was dried over anhydrous MgSO4, filtered, concentrated, and purified by silica gel chromatography, eluting with 1:1 CH2Cl2/92:7:1 CHCl3/MeOH/concentrated NH4OH to 100% 92:7:1 CHCl3/MeOH/concentrated NH4OH to 100% 6:3:1 CHCl3/MeOH/concentrated NH4OH. The resulting solids were rechromatographed with 9:1 CH2Cl2/MeOH to afford the title compound as a white solid. 1H NMR (300 MHz, DMSO-d6): δ 12.24 (br s, 1H), 8.11 (d, J=8.8 Hz, 2H), 7.66-7.71 (m, 1H), 7.59 (d, J=7.9 Hz, 1H), 7.42 (d, J=7.4 Hz, 1H), 7.03 (d, J=8.6 Hz, 2H), 3.28-3.34 (m, 4H), 2.64-2.73 (m, 1H), 2.55-2.59 (m, 4H), 1.01 (d, J=6.4 Hz, 6H). ESI MS m/z 383 [M+H]+.
  • 40
  • [ 53293-00-8 ]
  • [ 54166-95-9 ]
  • 6,7,8,9-tetrahydro-1-chloro-9-methylene-11H-pyrido[2,1-b]quinazolin-11-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1.1: 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; benzotriazol-1-ol / dichloromethane / 2 h / 20 °C 1.2: 12 h / 20 °C 2.1: silver trifluoromethanesulfonate / toluene / 3 h / 20 - 80 °C / Inert atmosphere; Sealed tube
  • 41
  • [ 53293-00-8 ]
  • [ 54166-95-9 ]
  • 2-(4-pentynyl)-5-chloro-4(3H)-quinazolinone [ No CAS ]
YieldReaction ConditionsOperation in experiment
Stage #1: hex-5-ynoic acid With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; for 2h; Stage #2: 2-amino-6-chlorobenzamide In dichloromethane at 20℃; for 12h; General procedure for the synthesis of substrates 6A-6Land 8A-8L: General procedure: To a solution of 5-hexynoic acid (3.0 mmol) in dryCH2Cl2 (5 mL) was added EDCI (3.1 mmol) and HOBt(3.1 mmol). The resulting mixture was stirred at rt for 2 h. Then substituted or unsubstituted 2-aminobenzamide (3.0 mmol) wasadded, and the reaction mixture was stirred at rt for 12 h whilebeing monitored by TLC. After the addition of H2O (10 mL) themixture was extracted with ethyl acetate (3 × 20 mL). Theorganic layers were combined and concentrated under vacuumto give the amide intermediate.
  • 42
  • [ 6089-09-4 ]
  • [ 54166-95-9 ]
  • 2-(3-butynyl)-5-chloro-4(3H)-quinazolinone [ No CAS ]
YieldReaction ConditionsOperation in experiment
Stage #1: 4-pentynoic acid With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; for 2h; Stage #2: 2-amino-6-chlorobenzamide In dichloromethane at 20℃; for 12h; General procedure for the synthesis of substrates 6A-6Land 8A-8L: General procedure: To a solution of 5-hexynoic acid (3.0 mmol) in dryCH2Cl2 (5 mL) was added EDCI (3.1 mmol) and HOBt(3.1 mmol). The resulting mixture was stirred at rt for 2 h. Then substituted or unsubstituted 2-aminobenzamide (3.0 mmol) wasadded, and the reaction mixture was stirred at rt for 12 h whilebeing monitored by TLC. After the addition of H2O (10 mL) themixture was extracted with ethyl acetate (3 × 20 mL). Theorganic layers were combined and concentrated under vacuumto give the amide intermediate.
  • 43
  • [ 6089-09-4 ]
  • [ 54166-95-9 ]
  • 2,3-dihydro-1-methylene-8-chloro-pyrrolo[2,1-b]quinazolin-9(1H)-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1.1: 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; benzotriazol-1-ol / dichloromethane / 2 h / 20 °C 1.2: 12 h / 20 °C 2.1: silver trifluoromethanesulfonate / toluene / 3 h / 20 - 80 °C / Inert atmosphere; Sealed tube
  • 44
  • [ 54166-95-9 ]
  • 6-chloro-2,3-dihydropyrrolo[1,2-a]quinazolin-5(1H)-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1: triethylamine / tetrahydrofuran / 0 - 20 °C / Inert atmosphere 2: potassium <i>tert</i>-butylate / tetrahydrofuran / 20 °C / Inert atmosphere
  • 45
  • [ 54166-95-9 ]
  • (E)-6-chloro-3-((dimethylamino)methylene)-2,3-dihydropyrrolo[1,2-a]quinazolin-5(1H)-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1: triethylamine / tetrahydrofuran / 0 - 20 °C / Inert atmosphere 2: potassium <i>tert</i>-butylate / tetrahydrofuran / 20 °C / Inert atmosphere 3: trichlorophosphate / dichloromethane / 70 °C / Inert atmosphere
  • 46
  • [ 54166-95-9 ]
  • (E)-6-chloro-3-((diethylamino)methylene)-2,3-dihydropyrrolo[1,2-a]quinazolin-5(1H)-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1: triethylamine / tetrahydrofuran / 0 - 20 °C / Inert atmosphere 2: potassium <i>tert</i>-butylate / tetrahydrofuran / 20 °C / Inert atmosphere 3: trichlorophosphate / dichloromethane / 48 h / Reflux; Inert atmosphere
  • 47
  • [ 54166-95-9 ]
  • (E)-6-chloro-3-(pyrrolidin-1-ylmethylene)-2,3-dihydropyrrolo[1,2-a]quinazolin-5(1H)-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1: triethylamine / tetrahydrofuran / 0 - 20 °C / Inert atmosphere 2: potassium <i>tert</i>-butylate / tetrahydrofuran / 20 °C / Inert atmosphere 3: trichlorophosphate / dichloromethane / 24 h / Reflux; Inert atmosphere
  • 48
  • [ 54166-95-9 ]
  • (E)-6-chloro-3-(piperidin-1-ylmethylene)-2,3-dihydropyrrolo[1,2-a]quinazolin-5(1H)-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1: triethylamine / tetrahydrofuran / 0 - 20 °C / Inert atmosphere 2: potassium <i>tert</i>-butylate / tetrahydrofuran / 20 °C / Inert atmosphere 3: trichlorophosphate / dichloromethane / 24 h / Reflux; Inert atmosphere
  • 49
  • [ 54166-95-9 ]
  • (E)-6-chloro-3-(morpholinomethylene)-2,3-dihydropyrrolo[1,2-a]quinazolin-5(1H)-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1: triethylamine / tetrahydrofuran / 0 - 20 °C / Inert atmosphere 2: potassium <i>tert</i>-butylate / tetrahydrofuran / 20 °C / Inert atmosphere 3: trichlorophosphate / dichloromethane / 24 h / Reflux; Inert atmosphere
  • 50
  • [ 54166-95-9 ]
  • (E)-6-chloro-3-((4-methylpiperazin-1-yl)methylene)-2,3-dihydropyrrolo[1,2-a]quinazolin-5(1H)-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1: triethylamine / tetrahydrofuran / 0 - 20 °C / Inert atmosphere 2: potassium <i>tert</i>-butylate / tetrahydrofuran / 20 °C / Inert atmosphere 3: trichlorophosphate / dichloromethane / 70 °C / Inert atmosphere 4: dmap / dichloromethane; ethanol / 70 °C / Sealed tube; Inert atmosphere
  • 51
  • [ 54166-95-9 ]
  • (E)-6-chloro-3-((4-ethylpiperazin-1-yl)methylene)-2,3-dihydropyrrolo[1,2-a]quinazolin-5(1H)-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1: triethylamine / tetrahydrofuran / 0 - 20 °C / Inert atmosphere 2: potassium <i>tert</i>-butylate / tetrahydrofuran / 20 °C / Inert atmosphere 3: trichlorophosphate / dichloromethane / 70 °C / Inert atmosphere 4: dmap / dichloromethane; ethanol / 70 °C / Sealed tube; Inert atmosphere
  • 52
  • [ 54166-95-9 ]
  • (E)-6-chloro-3-(2-ethylbutylidene)-2,3-dihydropyrrolo[1,2-a]quinazolin-5(1H)-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1: triethylamine / tetrahydrofuran / 0 - 20 °C / Inert atmosphere 2: potassium <i>tert</i>-butylate / tetrahydrofuran / 20 °C / Inert atmosphere 3: potassium <i>tert</i>-butylate / dichloromethane / 1 h / Inert atmosphere
  • 53
  • [ 54166-95-9 ]
  • (E)-6-chloro-3-(cyclohexylmethylene)-2,3-dihydropyrrolo[1,2-a]quinazolin-5(1H)-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1: triethylamine / tetrahydrofuran / 0 - 20 °C / Inert atmosphere 2: potassium <i>tert</i>-butylate / tetrahydrofuran / 20 °C / Inert atmosphere 3: potassium <i>tert</i>-butylate / dichloromethane / 1 h / Inert atmosphere
  • 54
  • [ 54166-95-9 ]
  • (E)-6-chloro-3-((tetrahydro-2H-pyran-4-yl)methylene)-2,3-dihydropyrrolo[1,2-a]quinazolin-5(1H)-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1: triethylamine / tetrahydrofuran / 0 - 20 °C / Inert atmosphere 2: potassium <i>tert</i>-butylate / tetrahydrofuran / 20 °C / Inert atmosphere 3: potassium <i>tert</i>-butylate / dichloromethane / 1 h / Inert atmosphere
Multi-step reaction with 3 steps 1.1: triethylamine / tetrahydrofuran / 0 - 20 °C / Inert atmosphere 2.1: potassium <i>tert</i>-butylate / tetrahydrofuran / 1 h / 20 °C / Inert atmosphere 3.1: potassium <i>tert</i>-butylate / dichloromethane / 0.08 h / Inert atmosphere 3.2: 1 h / Inert atmosphere
  • 55
  • [ 54166-95-9 ]
  • (E)-6-chloro-3-((1-methylpiperidin-4-yl)methylene)-2,3-dihydropyrrolo[1,2-a]quinazolin-5(1H)-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1: triethylamine / tetrahydrofuran / 0 - 20 °C / Inert atmosphere 2: potassium <i>tert</i>-butylate / tetrahydrofuran / 20 °C / Inert atmosphere 3: potassium <i>tert</i>-butylate / dichloromethane / 1 h / Inert atmosphere
  • 56
  • [ 54166-95-9 ]
  • [ 4635-59-0 ]
  • 2-(4-chlorobutanamido)-6-chlorobenzamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
93% With triethylamine In tetrahydrofuran at 0 - 20℃; Inert atmosphere;
93% With triethylamine In tetrahydrofuran at 0 - 20℃; Inert atmosphere; Synthesisof 2-(4-chlorobutanamido)-benzamides: general procedure A General procedure: Asolutionoftheappropriatesubstituted2-aminobenzamide(1.0eq)inTHF(2.5mLpermmolsubstrate)wascooledto0°Candtriethylamine(2.0eq)thentheappropriateacidchloride(1.2eq)inTHF(2mLpermmolsubstrate)wereaddedtothestirredsolution.ThereactionwasstirredatroomtemperatureuntilcompletionasindicatedbyTLC,whenthemixturewasdilutedwithEtOAcandquenchedwithNaHSO4(20mL).TheaqueousphasewasextractedwithEtOAc(320mL),combinedorganicphasesdriedoverMgSO4,excesssolventremovedinvacuoandtheresiduepurifiedbyFCC.
  • 57
  • [ 6061-04-7 ]
  • [ 54166-95-9 ]
  • 5-chloro-2-(nitromethyl)quinazolin-4(1H)-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
81% In water at 70℃; for 2h; General Procedure for the Synthesis of 2-(nitromethyl)quinazolin-4(1H)-ones (3a-3l) General procedure: 2-Aminobenzamides (1 mmol) and 1,1-dichloro-2-nitroethene (1.2 mmol) were added to 5 mL of water in a 25 mL round-bottom flask. Then stirred at corresponding temperature and corresponding reaction time, after completion, the product precipitated from the reaction mixture and can be easily separated by filtration, then give the pure products.
  • 58
  • [ 54166-95-9 ]
  • 5-chloro-2-(5-chloropentyl)quinazolin-4(3H)-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1: triethylamine / tetrahydrofuran / 0 - 20 °C / Inert atmosphere 2: potassium <i>tert</i>-butylate / tetrahydrofuran / 24 h / 20 °C / Inert atmosphere
  • 59
  • [ 54166-95-9 ]
  • (E)-7-chloro-4-[(dimethylamino)methylene]-1,2,3,4-tetrahydro-6H-pyrido[1,2-a]quinazolin-6-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1: triethylamine / tetrahydrofuran / 0 - 20 °C / Inert atmosphere 2: potassium <i>tert</i>-butylate / tetrahydrofuran / 20 °C / Inert atmosphere 3: trichlorophosphate / 6 h / 60 °C / Inert atmosphere
  • 60
  • [ 54166-95-9 ]
  • (E)-7-chloro-4-[(4-methylpiperazin-1-yl)methylene]-1,2,3,4-tetrahydro-6H-pyrido[1,2-a]quinazolin-6-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1: triethylamine / tetrahydrofuran / 0 - 20 °C / Inert atmosphere 2: potassium <i>tert</i>-butylate / tetrahydrofuran / 20 °C / Inert atmosphere 3: trichlorophosphate / 6 h / 60 °C / Inert atmosphere 4: dmap / ethanol / 6 h / 70 °C / Inert atmosphere; Sealed tube
  • 61
  • [ 54166-95-9 ]
  • (E)-6-chloro-3-(2-methylpropylidene)-2,3-dihydropyrrolo[1,2-a]quinazolin-5(1H)-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1.1: triethylamine / tetrahydrofuran / 0 - 20 °C / Inert atmosphere 2.1: potassium <i>tert</i>-butylate / tetrahydrofuran / 1 h / 20 °C / Inert atmosphere 3.1: potassium <i>tert</i>-butylate / tetrahydrofuran / 0.08 h / Inert atmosphere 3.2: 1 h / Inert atmosphere
  • 62
  • [ 54166-95-9 ]
  • 1-chloro-6,7,8,9-tetrahydro-11H-pyrido[2,1-b]quinazolin-11-one [ No CAS ]
  • 7-chloro-1,2,3,4-tetrahydro-6H-pyrido[1,2-a]quinazolin-6-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1: triethylamine / tetrahydrofuran / 0 - 20 °C / Inert atmosphere 2: potassium <i>tert</i>-butylate / tetrahydrofuran / 20 °C / Inert atmosphere
  • 63
  • [ 54166-95-9 ]
  • 5-chloro-2-(4-chlorobutyl)quinazolin-4(3H)-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1: triethylamine / tetrahydrofuran / 0 - 20 °C / Inert atmosphere 2: potassium <i>tert</i>-butylate / tetrahydrofuran / 1 h / 20 °C / Inert atmosphere
  • 64
  • [ 54166-95-9 ]
  • [ 149028-33-1 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1: triethylamine / tetrahydrofuran / 0 - 20 °C / Inert atmosphere 2: potassium <i>tert</i>-butylate / tetrahydrofuran / 1 h / 20 °C / Inert atmosphere
  • 65
  • [ 19347-73-0 ]
  • [ 54166-95-9 ]
  • 2-chloro-6-(6-chlorohexanamido)benzamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
58% With triethylamine In tetrahydrofuran at 0 - 20℃; Inert atmosphere; Synthesisof 2-(4-chlorobutanamido)-benzamides: general procedure A General procedure: Asolutionoftheappropriatesubstituted2-aminobenzamide(1.0eq)inTHF(2.5mLpermmolsubstrate)wascooledto0°Candtriethylamine(2.0eq)thentheappropriateacidchloride(1.2eq)inTHF(2mLpermmolsubstrate)wereaddedtothestirredsolution.ThereactionwasstirredatroomtemperatureuntilcompletionasindicatedbyTLC,whenthemixturewasdilutedwithEtOAcandquenchedwithNaHSO4(20mL).TheaqueousphasewasextractedwithEtOAc(320mL),combinedorganicphasesdriedoverMgSO4,excesssolventremovedinvacuoandtheresiduepurifiedbyFCC.
  • 66
  • [ 1575-61-7 ]
  • [ 54166-95-9 ]
  • 2-chloro-6-(5-chloropentanamido)benzamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
98% With triethylamine In tetrahydrofuran at 0 - 20℃; Inert atmosphere; Synthesisof 2-(4-chlorobutanamido)-benzamides: general procedure A General procedure: Asolutionoftheappropriatesubstituted2-aminobenzamide(1.0eq)inTHF(2.5mLpermmolsubstrate)wascooledto0°Candtriethylamine(2.0eq)thentheappropriateacidchloride(1.2eq)inTHF(2mLpermmolsubstrate)wereaddedtothestirredsolution.ThereactionwasstirredatroomtemperatureuntilcompletionasindicatedbyTLC,whenthemixturewasdilutedwithEtOAcandquenchedwithNaHSO4(20mL).TheaqueousphasewasextractedwithEtOAc(320mL),combinedorganicphasesdriedoverMgSO4,excesssolventremovedinvacuoandtheresiduepurifiedbyFCC.
  • 67
  • [ 54166-95-9 ]
  • [ 100-51-6 ]
  • [ 19407-57-9 ]
YieldReaction ConditionsOperation in experiment
70% With oxygen In dimethyl sulfoxide at 140℃; for 4h;
  • 68
  • [ 54166-95-9 ]
  • N-(3-(6-(5-chloro-4-oxobenzo[d][1,2,3]triazin-3(4H)-yl)hexyl)-4-oxothiazolidin-2-ylidene)cyanamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1.1: sodium nitrite; hydrogenchloride / water / 1 h / 0 - 5 °C 1.2: 0.5 h / pH 2 - 10 2.1: potassium carbonate / acetone / 8 h / Reflux 3.1: potassium iodide / N,N-dimethyl-formamide / 100 °C
  • 69
  • [ 54166-95-9 ]
  • [ 1008742-24-2 ]
YieldReaction ConditionsOperation in experiment
Stage #1: 2-amino-6-chlorobenzamide With hydrogenchloride; sodium nitrite In water at 0 - 5℃; for 1h; Stage #2: With ammonium hydroxide In water for 0.5h; 1,2,3-Benzotriazin-4-ones.[1] General procedure: A solution of anthranilamide (I, 30 mmol) in DMF (15 mL) was added dropwise to a well-stirred solution of sodium nitrite (4.14 g, 60 mmol) in 0.5 M HCl (240 mL) at 0 °C over a period of 40 min. After the stirring was continued at 0-5 C for 1 h, 30% aqueous ammonia was added slowly to adjust the pH to 10.0, and then reacidified to pH 2.0. After vigorously stirring for 30 min, the mixture was filtered with suction, and the filter cake was washed with water (200 mL) and dried to afford 1,2,3-benzotriazin-4-one II in yields of above 80%.
With hydrogenchloride; sodium nitrite In water; N,N-dimethyl-formamide at 0℃; for 1.66667h; General Procedure for the Preparation of 1,2,3-Benzotriazin-4-ones (14). General procedure: Compound 14 was prepared according tothe procedure previously reported.38 A solution of sodiumnitrite (4.14 g, 60 mmol) in 0.5 N HCl (240 mL) was stirred at0 °C for 20 min. Anthranilamide 13 (30 mmol) dissolved inN,N-dimethylformamide (DMF, 15 mL) was then addeddropwise to the solution described above for 40 min. Afterthe mixture had been stirred for an additional 1 h at 0 °C, 30%aqueous ammonia was added slowly to adjust the pH to 10.0.The reaction mixture was allowed to stir for 15 min and thenreacidified to pH 2.0. After the mixture had been stirred for 30min, the precipitated product was filtered off with suction,washed with water (200 mL), and dried to afford compound 14in yields of 75-83%.
Stage #1: 2-amino-6-chlorobenzamide With hydrogenchloride at 0℃; for 0.333333h; Stage #2: With sodium nitrite In water at 0℃; for 2.66h; Stage #3: With sodium hydroxide In water for 0.25h; Synthesis of 1,2,3-Benzotriazin-4-ones (4) General procedure: A solution of anthranilamide (30 mmol) in 1 N HCl (120 mL) was stirred at 0 °C for 20 min. Then, sodium nitrite (60 mmol) dissolved in deionized water (100 mL) was added dropwise to the above solution for 40 min. After another 2 h of stirring at 0 °C, 30% NaOH solution was added slowly to adjust the pH to 8.0. The reaction mixture was allowed to stir vigorously for 15 min. The precipitated product was filtered off with suction, washed with deionized water (200 mL), and dried to afford compound 4 in yield of 82%.
Stage #1: 2-amino-6-chlorobenzamide With hydrogenchloride In water at 0℃; for 0.333333h; Stage #2: With sodium nitrite In water at 0℃; for 2.66667h; Stage #3: With sodium hydroxide In water for 0.25h; Synthesis of substituted 1,2,3-benzotriazin-4-ones (10)(except 8-nitrobenzo[d][1-3]triazin-4(3H)-one). General procedure: A solution of anthranilamide (30 mmol) in 1N HCl (120 mL) was stirred at 0 °C for 20 min. Then, sodium nitrite (60 mmol) dissolved in deionized water (100 mL) was added dropwise to the above solution for 40 min. After another 2 h of stirringat 0 °C, 30% NaOH solution was added slowly to adjustp H value to 8.0. The reaction mixture was allowed to stir vigorously for 15 min. The precipitated product was filtered, washed with deionized water (200 mL), and dried to afford compounds 10 in yields of 40-92%.
With hydrogenchloride; sodium nitrite In N,N-dimethyl-formamide at 0℃; for 0.666667h; Synthesis of 1,2,3-benzotriazin-4-one (2) General procedure: A solution of sodium nitrite (4.14 g, 60 mmol) in 0.5 N HCl (240 mL) was stirred at 0 °C for 20 min. Then anthranilamide (3.96 g, 30 mmol) dissolved in N, N-dimethylformamide (DMF, 15 mL) was added dropwise to the above solution for 40 min. After another 1 h of stirring at 0 °C, 30% aqueous ammonia was added slowly to adjust the pH to 10.0. The reaction mixture was allowed to stir vigorously for 15 min and then add acid to adjust pH 2.0. After stirring for 30 min, the precipitated product was filtered off with suction, washed with water (200 mL) and dried to afford afford the product. The yields of substituted 1,2,3-benzotriazin-4-ones in yields of 84-92%.

  • 70
  • [ 54166-95-9 ]
  • C13H15BrClN3O [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1.1: sodium nitrite; hydrogenchloride / water / 1 h / 0 - 5 °C 1.2: 0.5 h / pH 2 - 10 2.1: potassium carbonate / acetone / 8 h / Reflux
  • 71
  • [ 54166-95-9 ]
  • C16H14ClN9O [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1: sodium nitrite; hydrogenchloride / water; N,N-dimethyl-formamide / 1.67 h / 0 °C 2: potassium carbonate / acetone / 8 h / Reflux 3: copper(l) iodide; triethylamine / tetrahydrofuran / 20 °C
  • 72
  • [ 54166-95-9 ]
  • C16H13ClIN9O [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1: sodium nitrite; hydrogenchloride / water; N,N-dimethyl-formamide / 1.67 h / 0 °C 2: potassium carbonate / acetone / 8 h / Reflux 3: copper(l) iodide; N-iodomorpholine / tetrahydrofuran / 20 - 25 °C 4: copper(l) iodide; triethylamine / tetrahydrofuran / 20 °C
  • 73
  • [ 54166-95-9 ]
  • C10H6ClN3O [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1: sodium nitrite; hydrogenchloride / water; N,N-dimethyl-formamide / 1.67 h / 0 °C 2: potassium carbonate / acetone / 8 h / Reflux
  • 74
  • [ 54166-95-9 ]
  • C10H5ClIN3O [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1: sodium nitrite; hydrogenchloride / water; N,N-dimethyl-formamide / 1.67 h / 0 °C 2: potassium carbonate / acetone / 8 h / Reflux 3: copper(l) iodide; N-iodomorpholine / tetrahydrofuran / 20 - 25 °C
  • 75
  • [ 54166-95-9 ]
  • [ 26033-20-5 ]
  • 5-chloro-2-(3-phenyl-1H-pyrazol-4-yl)-2,3-dihydroquinazolin-4(1H)-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
57% With 1,3,5-trichloro-2,4,6-triazine; In acetonitrile; at 20℃; General procedure: Cyanuric chloride (0.15mmol) was added to a mixture of 3a-3x (1mmol) and 4a (206mg, 1.2mmol) in CH3CN, MeOH or DMSO (3mL). The mixture was stirred at room temperature for 0.5-2h. After completion, the mixture was extracted with EtOAc three times. The combined organic layers were washed with brine, dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified by silica gel column chromatography eluting with CH2Cl2/MeOH (30/1) to afford H1, A1-A23.
  • 76
  • [ 54166-95-9 ]
  • C13H16ClN5O [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1.1: hydrogenchloride / 0.33 h / 0 °C 1.2: 2.66 h / 0 °C 1.3: 0.25 h / pH 8 2.1: potassium carbonate / acetone / Reflux 3.1: tetrahydrofuran / Reflux
  • 77
  • [ 54166-95-9 ]
  • C9H7BrClN3O [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1.1: hydrogenchloride / 0.33 h / 0 °C 1.2: 2.66 h / 0 °C 1.3: 0.25 h / pH 8 2.1: potassium carbonate / acetone / Reflux
  • 78
  • [ 54166-95-9 ]
  • 5-chloro-3-(2-(4-(2-nitrobenzoyl)piperazin-1-yl)ethyl)benzo[d][1,2,3]triazin-4(3H)-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1.1: hydrogenchloride / 0.33 h / 0 °C 1.2: 2.66 h / 0 °C 1.3: 0.25 h / pH 8 2.1: potassium carbonate / acetone / Reflux 3.1: tetrahydrofuran / Reflux 4.1: triethylamine / dichloromethane / 0.33 h / 0 °C 4.2: 0 - 20 °C
  • 79
  • [ 54166-95-9 ]
  • C10H9BrClN3O [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1.1: hydrogenchloride / water / 0.33 h / 0 °C 1.2: 2.67 h / 0 °C 1.3: 0.25 h / pH 8 2.1: potassium carbonate / acetone / Reflux
  • 80
  • [ 54166-95-9 ]
  • 5-chloro-3-(3-((4,5-dihydrothiazol-2-yl)thio)propyl)benzo[d][1,2,3]triazin-4(3H)-one [ No CAS ]
  • 5-chloro-3-(3-(2-thioxothiazolidin-3-yl)propyl)benzo[d][1,2,3]triazin-4(3H)-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1.1: hydrogenchloride / water / 0.33 h / 0 °C 1.2: 2.67 h / 0 °C 1.3: 0.25 h / pH 8 2.1: potassium carbonate / acetone / Reflux 3.1: potassium carbonate / acetone / Reflux
  • 81
  • [ 54166-95-9 ]
  • [ 1571-08-0 ]
  • 5-chloro-2-[4-(1-hydroxy-1-methylethyl)phenyl]-3H-quinazolin-4-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1.1: sodium metabisulfite / N,N-dimethyl acetamide / 150 °C 2.1: cerium(III) chloride / tetrahydrofuran / 4 h / 20 °C 2.2: 1 h / 20 °C
  • 82
  • [ 54166-95-9 ]
  • [ 1571-08-0 ]
  • 4-(5-chloro-4-oxo-3,4-dihydroquinazolin-2-yl)benzoic acid methyl ester [ No CAS ]
YieldReaction ConditionsOperation in experiment
83% With sodium metabisulfite In N,N-dimethyl acetamide at 150℃;
  • 83
  • [ 591-50-4 ]
  • [ 54166-95-9 ]
  • [ 144-62-7 ]
  • [ 19407-57-9 ]
YieldReaction ConditionsOperation in experiment
83% With potassium carbonate In N,N-dimethyl-formamide at 130℃; for 24h; Sealed tube;
  • 84
  • [ 54166-95-9 ]
  • C17H12ClN5O3S [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1: sodium nitrite; hydrogenchloride / N,N-dimethyl-formamide / 0.67 h / 0 °C 2: potassium carbonate / acetone / 20 °C / Reflux 3: triethylamine / Dichlorofluoromethane / -5 - 0 °C
  • 85
  • [ 54166-95-9 ]
  • C10H10ClN3O2 [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1: sodium nitrite; hydrogenchloride / N,N-dimethyl-formamide / 0.67 h / 0 °C 2: potassium carbonate / acetone / 20 °C / Reflux
  • 86
  • [ 54166-95-9 ]
  • [ 529-20-4 ]
  • N-(2-(5-chloro-4-oxo-3,4-dihydroquinazolin-2-yl)-3-methylphenyl)-3-methylbenzamide [ No CAS ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1: dimethyl sulfoxide / 100 °C 2: dichloro(pentamethylcyclopentadienyl)rhodium (III) dimer; sodium acetate / 1,2-dichloro-ethane / 14 h / 60 °C / Sealed tube
  • 87
  • [ 54166-95-9 ]
  • [ 529-20-4 ]
  • 5-chloro-2-(o-tolyl)quinazolin-4(3H)-one [ No CAS ]
YieldReaction ConditionsOperation in experiment
70% In dimethyl sulfoxide at 100℃;
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