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[ CAS No. 18706-21-3 ]

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Chemical Structure| 18706-21-3
Chemical Structure| 18706-21-3
Structure of 18706-21-3 * Storage: {[proInfo.prStorage]}
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Product Details of [ 18706-21-3 ]

CAS No. :18706-21-3 MDL No. :MFCD00276583
Formula : C10H5ClF3NO Boiling Point : -
Linear Structure Formula :- InChI Key :MGEMMMJZAWYWNI-UHFFFAOYSA-N
M.W :247.60 g/mol Pubchem ID :2736609
Synonyms :

Calculated chemistry of [ 18706-21-3 ]

Physicochemical Properties

Num. heavy atoms : 16
Num. arom. heavy atoms : 10
Fraction Csp3 : 0.1
Num. rotatable bonds : 1
Num. H-bond acceptors : 5.0
Num. H-bond donors : 1.0
Molar Refractivity : 53.78
TPSA : 33.12 Ų

Pharmacokinetics

GI absorption : High
BBB permeant : Yes
P-gp substrate : No
CYP1A2 inhibitor : Yes
CYP2C19 inhibitor : No
CYP2C9 inhibitor : No
CYP2D6 inhibitor : No
CYP3A4 inhibitor : No
Log Kp (skin permeation) : -5.41 cm/s

Lipophilicity

Log Po/w (iLOGP) : 1.85
Log Po/w (XLOGP3) : 3.38
Log Po/w (WLOGP) : 4.76
Log Po/w (MLOGP) : 2.74
Log Po/w (SILICOS-IT) : 3.56
Consensus Log Po/w : 3.26

Druglikeness

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

Water Solubility

Log S (ESOL) : -3.9
Solubility : 0.0311 mg/ml ; 0.000126 mol/l
Class : Soluble
Log S (Ali) : -3.75
Solubility : 0.0436 mg/ml ; 0.000176 mol/l
Class : Soluble
Log S (SILICOS-IT) : -4.63
Solubility : 0.00575 mg/ml ; 0.0000232 mol/l
Class : Moderately soluble

Medicinal Chemistry

PAINS : 0.0 alert
Brenk : 0.0 alert
Leadlikeness : 1.0
Synthetic accessibility : 1.59

Safety of [ 18706-21-3 ]

Signal Word:Warning Class:N/A
Precautionary Statements:P261-P280-P301+P312-P302+P352-P305+P351+P338 UN#:N/A
Hazard Statements:H302-H315-H319-H335 Packing Group:N/A
GHS Pictogram:

Application In Synthesis of [ 18706-21-3 ]

* 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 [ 18706-21-3 ]

[ 18706-21-3 ] Synthesis Path-Downstream   1~22

  • 1
  • [ 144850-70-4 ]
  • [ 18706-21-3 ]
YieldReaction ConditionsOperation in experiment
80% With PPA at 170℃; for 2h;
  • 2
  • [ CAS Unavailable ]
  • [ 18706-21-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1: 65 percent / Et3N / acetonitrile / 6 h / 70 °C 2: 80 percent / polyphosphoric acid / 2 h / 170 °C
  • 3
  • [ 18706-21-3 ]
  • [ 1021528-65-3 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1: sodium hydroxide / acetone / 1 h / 10 °C / pH 7.5 / Inert atmosphere 2: phosphorous; iodine; acetic acid / acetic acid / 10 h / 10 - 20 °C / Inert atmosphere
  • 4
  • [ 18706-21-3 ]
  • [ 1422372-80-2 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1: sodium hydroxide / acetone / 1 h / 10 °C / pH 7.5 / Inert atmosphere 2: phosphorous; iodine; acetic acid / acetic acid / 10 h / 10 - 20 °C / Inert atmosphere 3: N-benzyl-trimethylammonium hydroxide / 2 h / 70 °C / Inert atmosphere
  • 5
  • [ 98-59-9 ]
  • [ 18706-21-3 ]
  • [ 1021528-48-2 ]
YieldReaction ConditionsOperation in experiment
91% With sodium hydroxide In acetone at 10℃; for 1h; Inert atmosphere;
  • 6
  • [ CAS Unavailable ]
  • [ CAS Unavailable ]
  • [ 18706-21-3 ]
YieldReaction ConditionsOperation in experiment
82.44% With PPA at 130℃; for 2h; 4A Synthesis of 6-chloro-2-(trifluoromethyl)quinolin-4-ol The mixture of 4-chloroaniline (10 g, 78.39 mmol, 1 eq) and ethyl 4,4,4-trifluoro-3-oxo- butanoate (17.32 g, 94.06 mmol, 13.74 mL, 1.2 eq) in PPA (100 mL) was stirred at 130 °C for 2 h. The reaction mixture was poured into water (500 mL) slowly. The white precipitate was filtered to give 6-chloro-2-(trifluoromethyl)quinolin-4-ol (16 g, 64.62 mmol, 82.44% yield). 1H NMR (400 MHz, DMSO-d6) δ = 13.37 - 11.29 (br s, 1H), 8.15 (br s, 1H), 8.01 (br d, J = 5.0 Hz, 1H), 7.84 (dd, J = 2.1, 9.0 Hz, 1H), 7.32 - 6.94 (s, 1H).
82.44% With PPA at 130℃; for 2h; 4A Synthesis of 6-chloro-2-(trifluoromethyl)quinolin-4-ol The mixture of 4-chloroaniline (10 g, 78.39 mmol, 1 eq) and ethyl 4,4,4-trifluoro-3-oxo- butanoate (17.32 g, 94.06 mmol, 13.74 mL, 1.2 eq) in PPA (100 mL) was stirred at 130 °C for 2 h. The reaction mixture was poured into water (500 mL) slowly. The white precipitate was filtered to give 6-chloro-2-(trifluoromethyl)quinolin-4-ol (16 g, 64.62 mmol, 82.44% yield). 1H NMR (400 MHz, DMSO-d6) δ = 13.37 - 11.29 (br s, 1H), 8.15 (br s, 1H), 8.01 (br d, J = 5.0 Hz, 1H), 7.84 (dd, J = 2.1, 9.0 Hz, 1H), 7.32 - 6.94 (s, 1H).
75% With polyphosphoric acid at 20 - 120℃; for 2h; Inert atmosphere;
With PPA at 150℃;

  • 7
  • [ 18706-21-3 ]
  • [ CAS Unavailable ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1: acetone / 20 °C / Alkaline conditions 2: 90 - 120 °C
  • 8
  • [ 18706-21-3 ]
  • [ CAS Unavailable ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1: acetone / 20 °C / Alkaline conditions 2: 90 - 120 °C
  • 9
  • [ 18706-21-3 ]
  • [ CAS Unavailable ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1: acetone / 20 °C / Alkaline conditions 2: 90 - 120 °C
  • 10
  • [ 18706-21-3 ]
  • [ CAS Unavailable ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1: acetone / 20 °C / Alkaline conditions 2: 90 - 110 °C
  • 11
  • [ 18706-21-3 ]
  • [ CAS Unavailable ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1: acetone / 20 °C / Alkaline conditions 2: 90 - 110 °C
  • 12
  • [ 18706-21-3 ]
  • [ CAS Unavailable ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1: acetone / 20 °C / Alkaline conditions 2: 90 - 110 °C 3: thionyl chloride / dichloromethane / Reflux
  • 13
  • [ 18706-21-3 ]
  • [ CAS Unavailable ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 3 steps 1: acetone / 20 °C / Alkaline conditions 2: 90 - 110 °C 3: thionyl chloride / dichloromethane / Reflux
  • 14
  • [ 18706-21-3 ]
  • [ CAS Unavailable ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1: acetone / 20 °C / Alkaline conditions 2: 90 - 110 °C 3: thionyl chloride / dichloromethane / Reflux 4: 110 °C
  • 15
  • [ 18706-21-3 ]
  • [ CAS Unavailable ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1: acetone / 20 °C / Alkaline conditions 2: 90 - 110 °C 3: thionyl chloride / dichloromethane / Reflux 4: 110 °C
  • 16
  • [ 18706-21-3 ]
  • [ CAS Unavailable ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 4 steps 1: acetone / 20 °C / Alkaline conditions 2: 90 - 110 °C 3: thionyl chloride / dichloromethane / Reflux 4: sodium azide / N,N-dimethyl-formamide / 130 °C
  • 17
  • [ 18706-21-3 ]
  • [ 74-88-4 ]
  • [ CAS Unavailable ]
YieldReaction ConditionsOperation in experiment
In acetone at 20℃; Alkaline conditions;
YieldReaction ConditionsOperation in experiment
With polyphosphoric acid at 100 - 110℃; for 4h; Inert atmosphere; 25.1 (1) Synthesis of intermediate M3a General procedure: Take 22.0 g (64.9 mmol) of polyphosphoric acid in a 250 mL reaction flask, add 2.0 g (16.2 mmol) of p-anisidine, and replace the argon gas.Slowly inject 2.4 mL (16.3 mmol) of ethyl trifluoroacetoacetate with stirring at 100°C. After the injection, heat up to 110°C and stir for 4 hours. The reaction is complete. Pour the reaction system into ice water and stir quickly. A large amount of precipitation can be seen. Filter with suction. , The filter cake was dried under reduced pressure to obtain 3.08 g of compound M1a, yield: 78%. Take 2.00g (8.22mmol) of compound M1a, add 50mL of glacial acetic acid to dissolve it, replace the argon gas, slowly inject 0.75mL (9.87mmol) of concentrated nitric acid at 0, and finish the injection. After stirring at 40 for 11h, the reaction is complete and the reaction is completely visible. A large amount of solids precipitated in the system, filtered with suction, washed with water to neutrality, and dried to obtain 1.61 g of compound M2a, with a yield of 67.9%. Take 300 mg (1.0 mmol) of compound M2a, add 4 mL of DMF, replace the argon, slowly inject 285 μL (3.12 mmol) of phosphorus oxychloride, stir at 100°C for 2 hours, after the reaction is complete, disperse the reactant into ethyl acetate and water, extract, and organic layer It was washed twice with water, dried over anhydrous magnesium sulfate, and the solvent was recovered under reduced pressure. The residue was purified by silica gel column chromatography to obtain 298.6 mg of compound M3a, yield: 93.5%.
  • 19
  • 6-chloro-2-(trifluoromethyl)quinolin-4-ol [ No CAS ]
  • [ 18706-33-7 ]
YieldReaction ConditionsOperation in experiment
98.88% With trichlorophosphate at 20 - 90℃; for 2h; Inert atmosphere; 4A Synthesis of 4,6-dichloro-2-(trifluoromethyl)quinoline To a mixture of 6-chloro-2-(trifluoromethyl)quinolin-4-ol (16 g, 64.62 mmol, 1 eq) was added POCl3 (188.26 g, 1.23 mol, 114.10 mL, 19 eq) in portions at 20 °C under N2. The mixture was stirred at 90 °C for 2 hours. The reaction mixture was concentrated. The residue was poured into water (500 mL) dropwise then extracted with EtOAc (3x100 mL). The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure to give 4,6-dichloro-2-(trifluoromethyl)quinoline (17 g, 63.90 mmol, 98.88% yield). It was used as is in the next step. 1H NMR (400 MHz, DMSO-d6) δ = 8.34 (s, 1H), 8.28 (d, J = 2.2 Hz, 1H), 8.25 (d, J = 9.0 Hz, 1H), 8.03 (dd, J = 2.3, 9.0 Hz, 1H).
98.88% With trichlorophosphate at 20 - 90℃; for 2h; Inert atmosphere; 4A Synthesis of 4,6-dichloro-2-(trifluoromethyl)quinoline To a mixture of 6-chloro-2-(trifluoromethyl)quinolin-4-ol (16 g, 64.62 mmol, 1 eq) was added POCl3 (188.26 g, 1.23 mol, 114.10 mL, 19 eq) in portions at 20 °C under N2. The mixture was stirred at 90 °C for 2 hours. The reaction mixture was concentrated. The residue was poured into water (500 mL) dropwise then extracted with EtOAc (3x100 mL). The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure to give 4,6-dichloro-2-(trifluoromethyl)quinoline (17 g, 63.90 mmol, 98.88% yield). It was used as is in the next step. 1H NMR (400 MHz, DMSO-d6) δ = 8.34 (s, 1H), 8.28 (d, J = 2.2 Hz, 1H), 8.25 (d, J = 9.0 Hz, 1H), 8.03 (dd, J = 2.3, 9.0 Hz, 1H).
  • 20
  • [ 18706-21-3 ]
  • [ 2768213-12-1 ]
YieldReaction ConditionsOperation in experiment
Multi-step reaction with 2 steps 1: trichlorophosphate / 2 h / 20 - 90 °C / Inert atmosphere 2: N-ethyl-N,N-diisopropylamine / dimethyl sulfoxide / 16 h / 20 - 130 °C
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