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[ CAS No. 34662-29-8 ]

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2D 3D

Chemical Structure| 34662-29-8

Chemical Structure| 34662-29-8

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Quality Control of [ 34662-29-8 ]

COA NMR CNMR HPLC LC-MS

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SDS Specification

Alternatived Products of [ 34662-29-8 ]

Product Details of [ 34662-29-8 ]

CAS No. :	34662-29-8	MDL No. :	MFCD02317167
Formula :	C₇H₃ClN₂O₂	Boiling Point :	-
Linear Structure Formula :	-	InChI Key :	PAIMPYHIOHKXAT-UHFFFAOYSA-N
M.W :	182.56 g/mol	Pubchem ID :	14973028
Synonyms :

Calculated chemistry of [ 34662-29-8 ]

Physicochemical Properties

Num. heavy atoms :	12
Num. arom. heavy atoms :	6
Fraction Csp3 :	0.0
Num. rotatable bonds :	1
Num. H-bond acceptors :	3.0
Num. H-bond donors :	0.0
Molar Refractivity :	44.99
TPSA :	69.61 Å²

Pharmacokinetics

GI absorption :	High
BBB permeant :	Yes
P-gp substrate :	No
CYP1A2 inhibitor :	Yes
CYP2C19 inhibitor :	Yes
CYP2C9 inhibitor :	No
CYP2D6 inhibitor :	No
CYP3A4 inhibitor :	No
Log Kp (skin permeation) :	-5.88 cm/s

Lipophilicity

Log Po/w (iLOGP) :	1.5
Log Po/w (XLOGP3) :	2.16
Log Po/w (WLOGP) :	2.12
Log Po/w (MLOGP) :	0.86
Log Po/w (SILICOS-IT) :	0.29
Consensus Log Po/w :	1.39

Druglikeness

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

Water Solubility

Log S (ESOL) :	-2.64
Solubility :	0.421 mg/ml ; 0.00231 mol/l
Class :	Soluble
Log S (Ali) :	-3.25
Solubility :	0.102 mg/ml ; 0.000557 mol/l
Class :	Soluble
Log S (SILICOS-IT) :	-2.48
Solubility :	0.605 mg/ml ; 0.00331 mol/l
Class :	Soluble

Medicinal Chemistry

PAINS :	0.0 alert
Brenk :	2.0 alert
Leadlikeness :	1.0
Synthetic accessibility :	1.83

Safety of [ 34662-29-8 ]

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

Application In Synthesis of [ 34662-29-8 ]

* 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.

Upstream synthesis route of [ 34662-29-8 ]
Downstream synthetic route of [ 34662-29-8 ]

[ 34662-29-8 ] Synthesis Path-Upstream 1~5

1
[ 34662-29-8 ]
[ 21803-75-8 ]

Reference： [1] Synlett, 2010, # 20, p. 3019 - 3022

2
[ 21803-75-8 ]
[ 34662-29-8 ]

Yield	Reaction Conditions	Operation in experiment
74%	With sodium borate In acetic acid at 50 - 62℃; for 3 h;	A suspension of sodium borate tetrahydrate (32.5 g, 211.2 mmol) in 195 ml of acetic acid was heated until the temperature of the reaction mixture was above 50° C. The reaction temperature was kept this way while 2-chloro-4-cyanoaniline (5.93 g, 38.9 mmol) was added in portions over 1 h. Stirring and heating were continued for 2 hours on an oil bath of 62° C. After cooling to room temperature the reaction mixture was poured into 1 L icewater. The aqueous layer was extracted with Et₂O (3.x.). The combined organic layers were washed with H₂O (2.x.) and dried (MgSO₄). The drying agent was removed by filtration and the solvent by evaporation under reduced pressure. The residue was chromatographed (SiO₂) with Et₂O/petroleum ether 1/3 as eluent to give 5.27 g (74percent) of the oxidized product.

Reference： [1] Patent: US2006/122189, 2006, A1, . Location in patent: Page/Page column 22
[2] Chemical and Pharmaceutical Bulletin, 1992, vol. 40, # 9, p. 2399 - 2409
[3] Patent: US2003/69257, 2003, A1,
[4] Patent: EP1247810, 2002, A1, . Location in patent: Page 59

3
[ 21803-75-8 ]
[ 1317-39-1 ]
[ 34662-29-8 ]

Reference： [1] Patent: US2003/78432, 2003, A1,

4
[ 825-41-2 ]
[ 34662-29-8 ]

Reference： [1] Journal fuer Praktische Chemie (Leipzig), 1888, vol. <2> 37, p. 197

5
[ 34662-29-8 ]
[ 39608-47-4 ]

Reference： [1] Journal fuer Praktische Chemie (Leipzig), 1888, vol. <2> 37, p. 197
[2] Bioorganic and Medicinal Chemistry Letters, 2007, vol. 17, # 15, p. 4248 - 4253

[ 34662-29-8 ] Synthesis Path-Downstream 1~59

1
[ 34662-29-8 ]
[ 39608-47-4 ]

Reference： [1]Journal fur praktische Chemie (Leipzig 1954),1888,vol. <2> 37,p. 197
[2]Bioorganic and Medicinal Chemistry Letters,2007,vol. 17,p. 4248 - 4253

2
[ 825-41-2 ]
[ 34662-29-8 ]

Reference： [1]Journal fur praktische Chemie (Leipzig 1954),1888,vol. <2> 37,p. 197

3
[ 21803-75-8 ]
[ 34662-29-8 ]

Yield	Reaction Conditions	Operation in experiment
74%	With sodium borate; In acetic acid; at 50 - 62℃; for 3h;	A suspension of sodium borate tetrahydrate (32.5 g, 211.2 mmol) in 195 ml of acetic acid was heated until the temperature of the reaction mixture was above 50 C. The reaction temperature was kept this way while 2-chloro-4-cyanoaniline (5.93 g, 38.9 mmol) was added in portions over 1 h. Stirring and heating were continued for 2 hours on an oil bath of 62 C. After cooling to room temperature the reaction mixture was poured into 1 L icewater. The aqueous layer was extracted with Et2O (3×). The combined organic layers were washed with H2O (2×) and dried (MgSO4). The drying agent was removed by filtration and the solvent by evaporation under reduced pressure. The residue was chromatographed (SiO2) with Et2O/petroleum ether 1/3 as eluent to give 5.27 g (74%) of the oxidized product.
	With sodium nitrite; In hydrogenchloride; water;	1. 4-nitro-3-chlorobenzonitrile To an ice cold solution of 4-amino-3-chlorobenzonitrile (1 g, 6.6 mmol) in concentrated HCl (2.5 mL) plus water (2.5 mL) a chilled solution of sodium nitrite (0.74 g, 1.62 eq) in water (3.6 mL) is added dropwise to maintain the reaction temperature <0 C. After stirring at 0 C. for 10 min, the mixture is added portion-wise to an ice cold solution of sodium nitrite (3.29 g, 7.22 eq) and copper(I) oxide (349 mg, 0.37 eq) in water 14.5 mL). Stirring is continued at 0 C. for 40 min, and then at room temperature for 0.5 h. The reaction mixture is extracted with dichloromethane (2*), the combined organic layers washed with saturated aqueous sodium chloride, dried (MgSO4), concentrated, and purified by silica gel chromatography to give 4-nitro-3-chlorobenzonitrile. 1H NMR (CDCl3): delta 7.96 (d, J=8.24 Hz, 1 h), 7.88 (d, J=1.65 Hz, 1H), 7.63 (dd, J=1.65, 8.24 Hz, 1H.

Reference： [1]Patent: US2006/122189,2006,A1 .Location in patent: Page/Page column 22
[2]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409
[3]Patent: US2003/69257,2003,A1
[4]Patent: EP1247810,2002,A1 .Location in patent: Page 59

4
[ 367-27-1 ]
[ 34662-29-8 ]
[ 116686-91-0 ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

5
[ 34662-29-8 ]
[ 945028-64-8 ]

Reference： [1]Bioorganic and Medicinal Chemistry Letters,2007,vol. 17,p. 4248 - 4253

6
[ 34662-29-8 ]
[ 945028-66-0 ]

Reference： [1]Bioorganic and Medicinal Chemistry Letters,2007,vol. 17,p. 4248 - 4253

7
[ 34662-29-8 ]
C₂₄H₂₁ClN₈O [ No CAS ]

Reference： [1]Bioorganic and Medicinal Chemistry Letters,2007,vol. 17,p. 4248 - 4253

8
[ 34662-29-8 ]
[ 55737-29-6 ]

Reference： [1]Bioorganic and Medicinal Chemistry Letters,2007,vol. 17,p. 4248 - 4253

9
[ 34662-29-8 ]
[ 475489-80-6 ]

Reference： [1]Bioorganic and Medicinal Chemistry,2002,vol. 10,p. 2589 - 2596

10
[ 34662-29-8 ]
2-(4-fluoro-phenyl)-3-propyl-3<i>H</i>-benzoimidazole-5-carbonitrile [ No CAS ]

Reference： [1]Bioorganic and Medicinal Chemistry,2002,vol. 10,p. 2589 - 2596

11
[ 34662-29-8 ]
[ 116686-92-1 ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

12
[ 34662-29-8 ]
[ 116686-94-3 ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

13
[ 34662-29-8 ]
[ 116686-98-7 ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

14
[ 34662-29-8 ]
[ 116687-00-4 ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

15
[ 34662-29-8 ]
[ 116687-17-3 ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

16
[ 34662-29-8 ]
[ 116687-39-9 ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

17
[ 34662-29-8 ]
[ 116687-41-3 ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

18
[ 34662-29-8 ]
[ 116686-96-5 ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

19
[ 34662-29-8 ]
[ 116686-95-4 ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

20
[ 34662-29-8 ]
[ 116686-93-2 ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

21
[ 34662-29-8 ]
[ 116686-40-9 ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

22
[ 34662-29-8 ]
[ 116686-97-6 ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

23
[ 34662-29-8 ]
[ 116686-99-8 ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

24
[ 34662-29-8 ]
[ 116687-50-4 ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

25
[ 34662-29-8 ]
[ 116686-16-9 ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

26
[ 34662-29-8 ]
2'-(2,4-difluorophenoxy)-4'-(hydroxyiminomethyl)methanesulfonanilide [ No CAS ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

27
[ 34662-29-8 ]
[ 116687-13-9 ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

28
[ 34662-29-8 ]
2'-(2,4-Difluorophenoxy)-4'-(methoxyiminomethyl)methanesulfonanilide [ No CAS ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

29
[ 34662-29-8 ]
[ 116687-40-2 ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

30
[ 34662-29-8 ]
[ 116686-72-7 ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

31
[ 34662-29-8 ]
[ 116686-22-7 ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

32
[ 34662-29-8 ]
3-(2,4-difluorophenoxy)-4-(methanesulfonamido)benzamide [ No CAS ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

33
[ 34662-29-8 ]
N-methyl-3-(2,4-difluorophenoxy)-4-(methanesulfonamido)benzamide [ No CAS ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

34
[ 34662-29-8 ]
2'-(2,4-difluorophenoxy)-4'-(3-oxo-1-butenyl)methanesulfonanilide [ No CAS ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

35
[ 34662-29-8 ]
[ 116687-36-6 ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

36
[ 34662-29-8 ]
3-(2,4-Difluoro-phenoxy)-4-methanesulfonylamino-benzoic acid ethyl ester [ No CAS ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

37
[ 34662-29-8 ]
N-Methoxy-3-(2,4-difluorophenoxy)-4-(methanesulfonamido)benzamide [ No CAS ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

38
[ 34662-29-8 ]
3-(2,4-Difluoro-phenoxy)-4-methanesulfonylamino-N,N-dimethyl-benzamide [ No CAS ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

39
[ 34662-29-8 ]
N-[4-Benzoyl-2-(2,4-difluoro-phenoxy)-phenyl]-methanesulfonamide [ No CAS ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

40
[ 34662-29-8 ]
[ 116687-51-5 ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

41
[ 34662-29-8 ]
2'-(2,4-difluorophenoxy)-4'-(5-tetrazolyl)methanesulfonanilide [ No CAS ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

42
[ 34662-29-8 ]
[ 116686-73-8 ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

43
[ 34662-29-8 ]
[ 116686-74-9 ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

44
[ 34662-29-8 ]
1-[3-(2,4-Difluorophenoxy)-4-(methanesulfonamido)benzoyl]-4-methylpiperazine [ No CAS ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

45
[ 34662-29-8 ]
N-(Bis-ethylsulfanyl-methyl)-3-(2,4-difluoro-phenoxy)-4-methanesulfonylamino-benzamide [ No CAS ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

46
[ 34662-29-8 ]
5-[3-(2,4-Difluorophenoxy)-4-methanesulfonamidophenyl]-3-ethylsulfonyl-1,2,4-oxadiazole [ No CAS ]

Reference： [1]Chemical and Pharmaceutical Bulletin,1992,vol. 40,p. 2399 - 2409

47
[ 1116-98-9 ]
[ 34662-29-8 ]
tert-butyl (+/-)-cyano-(4-cyano-2-nitrophenyl)acetate [ No CAS ]

Yield	Reaction Conditions	Operation in experiment
	With pyridine; potassium tert-butylate; at 80℃; for 4h;	18.4 g of potassium tert-butoxide was dissolved in 150 ml of pyridine, to which were added 17 ml of tert-cyanoacetate and 15.0 g of <strong>[34662-29-8]1-chloro-5-cyano-2-nitrobenzene</strong> at room temperature, and stirred at 80C for 4 hours. The solvent was evaporated away under reduced pressure, 200 ml of water was added to the residue, and this was washed with 300 ml of toluene. 120 ml of concentrated hydrochloric acid was added to the aqueous layer, and then extracted with 300 ml of ethyl acetate. The organic layer was washed with saturated saline, and then dried with anhydrous magnesium sulfate, and the solvent was evaporated away under reduced pressure to obtain 22.9 g of a dark red oil of crude tert-butyl (+/-)-cyano-(4-cyano-2-nitrophenyl)acetate. Not further purified, this was used in the next reaction. 22.6 g of the crude tert-butyl (+/-)-cyano-(4-cyano-2-nitrophenyl)acetate was dissolved in 200 ml of acetic acid, and heated up to 100C. 13.2 g of reduced iron was added to it, and stirred at 100C for 1.5 hours. This was cooled to room temperature, the insoluble matter was filtered away, and the solvent was evaporated away under reduced pressure. 300 ml of ethyl acetate and 300 ml of 1 M hydrochloric acid were added to the residue, and the reaction liquid was filtered through Celite. The filtrate was extracted with ethyl acetate, and the organic layer was washed with 1 M hydrochloric acid and saturated saline, and dried with anhydrous magnesium sulfate. The solvent was evaporated away under reduced pressure, and the residue was subjected to silica gel column chromatography for elution with ethyl acetate/n-hexane (3/7, v/v) to obtain 7.94 g of a dark brown foam substance of the entitled compound. FAB-MS m/z:258(M++1)

Reference： [1]Patent: EP1367058,2003,A1 .Location in patent: Page 18-19

48
[ 34662-29-8 ]
[ 75-04-7 ]
[ 467235-08-1 ]

Reference： [1]Patent: EP1247810,2002,A1 .Location in patent: Page 59

49
[ 34662-29-8 ]
[ 530-62-1 ]
[ 773884-34-7 ]

Yield	Reaction Conditions	Operation in experiment
65%	In tetrahydrofuran; at 18 - 25℃;	A mixture of <strong>[34662-29-8]3-chloro-4-nitrobenzonitrile</strong> (620 mg, 2.4 mmol, Chem. Pharm. Bull, (1992) 2399-2404), 1,1-carbonyldiimidazole (778 mg, 4.8 mmol) in tetrahydrofurane (30 ml) was stirred at room temperature overnight. To the mixture was added water (30 ml) and the whole was extracted with ethyl acetate (100 ml×2). The combined organic layers were washed with brine, dried over sodium sulfate, and concentrated in vacuo. The residue was purified by column chromatography on silica gel (hexane/ethyl acetate=1/1 as eluent) to afford the titled compound as a white solid (415 mg, 65%). [0455] 1H-NMR (CDCl3) delta:10.96 (s, 1H), 7.17-7.30 (m, 2H), 7.05 (d, J=8.1 Hz, 1H), 6.89 (d, J=1.3 Hz, 1), 4.07 (t, J=7.0 Hz), 3.02 (t, J=7.0 Hz, 2H) ppm.

Reference： [1]Patent: US2004/204409,2004,A1 .Location in patent: Page/Page column 29

50
[ 34662-29-8 ]
[ 64-04-0 ]
[ 773884-04-1 ]

Yield	Reaction Conditions	Operation in experiment
21%	With potassium carbonate; In ethanol; for 5h;Heating / reflux;	A mixture of <strong>[34662-29-8]3-chloro-4-nitrobenzonitrile</strong> (3 g, 16.4 mmol, Chem. Pharm. Bull., 1992, 2399-2404), 2-phenylethanamine (2.5 ml, 19.7 mmol) and potassium carbonate (3.4 g, 24.6 mmol) in ethanol (200 ml) was refluxed for 5 hr. To the mixture was added 2 N aqueous NaOH (100 ml) and the whole was extracted with ethyl acetate (100 ml×2). The combined organic layers were washed with brine, dried over sodium sulfate, and concentrated in vacuo. The residue was purified by column chromatography on silica gel (hexane/ethyl acetate=1/8 as eluent) to afford the titled compound as a yellow solid (936 mg, 21%). [0371] 1H-NMR (CDCl3) delta:8.49 (d, J=2.0 Hz, 1H), 8.43 (br.s, 1H), 7.57 (dd, J=2.2, 8.8 Hz, 1H), 7.24-7.39 (m, 5H), 6.89 (d, J=9.0 Hz, 1H), 3.58-3.65 (m, 2H), 3.04 (d, J=7.1 Hz, 2H) ppm.

Reference： [1]Patent: US2004/204409,2004,A1 .Location in patent: Page/Page column 24

51
[ 13325-10-5 ]
[ 34662-29-8 ]
[ 889884-86-0 ]

Yield	Reaction Conditions	Operation in experiment
49%	In N,N-dimethyl-formamide; at 0 - 20℃; for 72h;	To a stirring solution of <strong>[34662-29-8]2-chloro-4-cyanonitrobenzene</strong> from step i (2.48 g, 13.6 mmol) in 12 ml DMF was cooled in ice. 4-aminobutanol (5.50 ml, 59.3 mmol) was added and the reaction mixture was slowly allowed to warm to room temperature after which stirring was continued at room temperature for 72 h. H2O was added and the aqueous layer was extracted with CH2Cl2 (2×) The combined organic layers were washed with H2O (3×), dried (by a Water Repelling Filter) and evaporated under reduced pressure. The residue was chromatographed with Et2O/petroleum ether 4:1 as eluent to give 2.6 g (49%) of the amino-alkylated product

Reference： [1]Patent: US2006/122189,2006,A1 .Location in patent: Page/Page column 22

52
[ 34662-29-8 ]
[ 467235-08-1 ]

Yield	Reaction Conditions	Operation in experiment
	In tetrahydrofuran;	3-Ethylamino-4-nitro-benzonitrile Monoethylamine was bubbled though a solution of <strong>[34662-29-8]3-chloro-4-nitro-benzonitrile</strong> (0.49 g) in tetrahydrofuran (1 mL). The reaction vial was sealed and allowed to stand for 18 hours at 23 C. The resulting mixture was diluted with ethyl acetate and saturated sodium bicarbonate and extracted. The organic layer was dried with sodium sulfate and concentrated. Silica gel chromatography using 5% ethyl acetate in hexanes as eluent gave 3-ethylamino-4-nitro-benzonitrile (0.3 g).

Reference： [1]Patent: US2003/78432,2003,A1

53
[ 34662-29-8 ]
[ 75-04-7 ]
[ 438564-52-4 ]

Yield	Reaction Conditions	Operation in experiment
	With potassium carbonate; In tetrahydrofuran; water; N,N-dimethyl-formamide;	2. Preparation of 4-Ethylamino-3-chloro benzonitrile A mixture of <strong>[34662-29-8]4-nitro-3-chlorobenzonitrile</strong> (0.74 g, 4.1 mmol), potassium carbonate (1.68 g, 12.2 mmol), and ethylamine(4 mL, 2M in THF) in DMF (2 mL) is stirred at ambient temperature for 3 h. Additional ethylamine (2.1 mL, 2M in THF) is added, the flask stoppered, and stirring continued an additional 15.5 h. Water (50 mL) is added and extracted 2* with ethyl acetate (50 mL), and the combined organic layers are washed with water, then brine, dried (MgSO4), and concentrated to give a mixture of 3-Ethylamine-4-nitrobenzonitrile and 4-Ethylamino-3-chloro benzonitrile which was carried forward without purification.

Reference： [1]Patent: US2003/69257,2003,A1

54
[ 21803-75-8 ]
[ 1317-39-1 ]
[ 34662-29-8 ]

Yield	Reaction Conditions	Operation in experiment
	With hydrogenchloride; sodium nitrite; In water;	3-Chloro-4-nitro-benzonitrile Sodium nitrite (6.78 g in water (40 mL) at 0 C.) was slowly added to a solution of 4-amino-3-chloro-benzonitrile (10.5 g) in water (30 mL) and concentrated hydrochloric acid (30 mL) also at 0 C. After 10 minutes the solution was poured onto a suspension of cuprous oxide (3.48 g) and sodium nitrite (31.69 g) in water (100 mL) at 0 C. The ensuing mixture was stirred at 0 C. for 1 hour then at 23 C. for 1 hour. The resulting mixture was extracted with dichloromethane and the organic layer washed with saturated sodium chloride. The separated organic layer was dried over sodium sulfate and then concentrated to give 3-chloro-4-nitro-benzonitrile (11.31 g).

Reference： [1]Patent: US2003/78432,2003,A1

55
[ 34662-29-8 ]
[ 109-73-9 ]
[ 918796-53-9 ]

Reference： [1]Journal of Heterocyclic Chemistry,2009,vol. 46,p. 936 - 948

56
[ 34662-29-8 ]
[ 21803-75-8 ]

Reference： [1]Synlett,2010,p. 3019 - 3022

57
[ 34662-29-8 ]
[ 1301188-96-4 ]
[ 1301189-97-8 ]

Yield	Reaction Conditions	Operation in experiment
50.5%	With N-ethyl-N,N-diisopropylamine; In 1,4-dioxane; at 150℃; for 2h;	Example 1702- [4-(l-Benzofuran-5-yl)phenyl]-l-[(3S)-l-(cyclopropylcarbonyl)-3- pyrrolidinyl] methyl}- lH-benzimidazole-6-carbonitrile(a) 3-([(3S)-l-(Cyclopropylcarbonyl)-3-pyrrolidinyl]methyl}amino)-4- nitrobenzonitrileA mixture of [(3S)-l-(cyclopropylcarbonyl)-3-pyrrolidinyl]methyl}amine (495 mg, 2.94 mmol), <strong>[34662-29-8]3-chloro-4-nitrobenzonitrile</strong> (537 mg, 2.94 mmol), and DIEA (1.025 mL, 5.88 mmol) were dissolved in 1,4-dioxane (10 mL) in a microwave vial. The solution was heated at 150 C for 2 hours. The reaction mixture was evaporated, taken up in DCM and washed with water. The aqueous wash was extracted with DCM and the combined organics evaporated and purified by silica gel column chromatography using a gradient of 0-5% MeOH/DCM to afford the titled compound (467 mg, 1.486 mmol, 50.5 % yield). 1H NMR (400 MHz, chloroform-d) delta ppm 0.71-0.89 (m, 2 H) 0.95-1.10 (m, 2 H) 1.62-1.69 (m, 1 H) 1.70-2.00 (m, 1 H) 2.12-2.42 (m, 1 H) 2.54-2.91 (m, 1 H) 3.23-4.04 (m, 6 H) 6.95 (td, J=8.65, 1.64 Hz, 1 H) 7.18 (dd, J=8.34, 1.52 Hz, 1 H) 8.01-8.20 (m, 1 H) 8.30 (dd, J=8.72, 5.68 Hz, 1 H).

Reference： [1]Patent: WO2011/56635,2011,A1 .Location in patent: Page/Page column 149

58
[ 34662-29-8 ]
[ 110-70-3 ]
1,4-dimethyl-1,2,3,4-tetrahydroquinoxaline-6-carbonitrile [ No CAS ]

Reference： [1]RSC Advances,2013,vol. 3,p. 22389 - 22396

59
[ 34662-29-8 ]
(E)-5-cyano-1-(pent-1-enyl)-1H-benzo[d][1,2,3]triazole 3-oxide [ No CAS ]

Reference： [1]Advanced Synthesis and Catalysis,2017,vol. 359,p. 2741 - 2746

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Ghs Precautionary Statements

Precautionary Statements-General
Code	Phrase
P101	If medical advice is needed,have product container or label at hand.
P102	Keep out of reach of children.
P103	Read label before use
Prevention
Code	Phrase
P201	Obtain special instructions before use.
P202	Do not handle until all safety precautions have been read and understood.
P210	Keep away from heat/sparks/open flames/hot surfaces. - No smoking.
P211	Do not spray on an open flame or other ignition source.
P220	Keep/Store away from clothing/combustible materials.
P221	Take any precaution to avoid mixing with combustibles
P222	Do not allow contact with air.
P223	Keep away from any possible contact with water, because of violent reaction and possible flash fire.
P230	Keep wetted
P231	Handle under inert gas.
P232	Protect from moisture.
P233	Keep container tightly closed.
P234	Keep only in original container.
P235	Keep cool
P240	Ground/bond container and receiving equipment.
P241	Use explosion-proof electrical/ventilating/lighting/equipment.
P242	Use only non-sparking tools.
P243	Take precautionary measures against static discharge.
P244	Keep reduction valves free from grease and oil.
P250	Do not subject to grinding/shock/friction.
P251	Pressurized container: Do not pierce or burn, even after use.
P260	Do not breathe dust/fume/gas/mist/vapours/spray.
P261	Avoid breathing dust/fume/gas/mist/vapours/spray.
P262	Do not get in eyes, on skin, or on clothing.
P263	Avoid contact during pregnancy/while nursing.
P264	Wash hands thoroughly after handling.
P265	Wash skin thouroughly after handling.
P270	Do not eat, drink or smoke when using this product.
P271	Use only outdoors or in a well-ventilated area.
P272	Contaminated work clothing should not be allowed out of the workplace.
P273	Avoid release to the environment.
P280	Wear protective gloves/protective clothing/eye protection/face protection.
P281	Use personal protective equipment as required.
P282	Wear cold insulating gloves/face shield/eye protection.
P283	Wear fire/flame resistant/retardant clothing.
P284	Wear respiratory protection.
P285	In case of inadequate ventilation wear respiratory protection.
P231 + P232	Handle under inert gas. Protect from moisture.
P235 + P410	Keep cool. Protect from sunlight.
Response
Code	Phrase
P301	IF SWALLOWED:
P304	IF INHALED:
P305	IF IN EYES:
P306	IF ON CLOTHING:
P307	IF exposed:
P308	IF exposed or concerned:
P309	IF exposed or if you feel unwell:
P310	Immediately call a POISON CENTER or doctor/physician.
P311	Call a POISON CENTER or doctor/physician.
P312	Call a POISON CENTER or doctor/physician if you feel unwell.
P313	Get medical advice/attention.
P314	Get medical advice/attention if you feel unwell.
P315	Get immediate medical advice/attention.
P320
P302 + P352	IF ON SKIN: wash with plenty of soap and water.
P321
P322
P330	Rinse mouth.
P331	Do NOT induce vomiting.
P332	IF SKIN irritation occurs:
P333	If skin irritation or rash occurs:
P334	Immerse in cool water/wrap n wet bandages.
P335	Brush off loose particles from skin.
P336	Thaw frosted parts with lukewarm water. Do not rub affected area.
P337	If eye irritation persists:
P338	Remove contact lenses, if present and easy to do. Continue rinsing.
P340	Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P341	If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing.
P342	If experiencing respiratory symptoms:
P350	Gently wash with plenty of soap and water.
P351	Rinse cautiously with water for several minutes.
P352	Wash with plenty of soap and water.
P353	Rinse skin with water/shower.
P360	Rinse immediately contaminated clothing and skin with plenty of water before removing clothes.
P361	Remove/Take off immediately all contaminated clothing.
P362	Take off contaminated clothing and wash before reuse.
P363	Wash contaminated clothing before reuse.
P370	In case of fire:
P371	In case of major fire and large quantities:
P372	Explosion risk in case of fire.
P373	DO NOT fight fire when fire reaches explosives.
P374	Fight fire with normal precautions from a reasonable distance.
P376	Stop leak if safe to do so. Oxidising gases (section 2.4) 1
P377	Leaking gas fire: Do not extinguish, unless leak can be stopped safely.
P378
P380	Evacuate area.
P381	Eliminate all ignition sources if safe to do so.
P390	Absorb spillage to prevent material damage.
P391	Collect spillage. Hazardous to the aquatic environment
P301 + P310	IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P301 + P312	IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P301 + P330 + P331	IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P302 + P334	IF ON SKIN: Immerse in cool water/wrap in wet bandages.
P302 + P350	IF ON SKIN: Gently wash with plenty of soap and water.
P303 + P361 + P353	IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P304 + P312	IF INHALED: Call a POISON CENTER or doctor/physician if you feel unwell.
P304 + P340	IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P304 + P341	IF INHALED: If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305 + P351 + P338	IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P306 + P360	IF ON CLOTHING: Rinse Immediately contaminated CLOTHING and SKIN with plenty of water before removing clothes.
P307 + P311	IF exposed: call a POISON CENTER or doctor/physician.
P308 + P313	IF exposed or concerned: Get medical advice/attention.
P309 + P311	IF exposed or if you feel unwell: call a POISON CENTER or doctor/physician.
P332 + P313	IF SKIN irritation occurs: Get medical advice/attention.
P333 + P313	IF SKIN irritation or rash occurs: Get medical advice/attention.
P335 + P334	Brush off loose particles from skin. Immerse in cool water/wrap in wet bandages.
P337 + P313	IF eye irritation persists: Get medical advice/attention.
P342 + P311	IF experiencing respiratory symptoms: call a POISON CENTER or doctor/physician.
P370 + P376	In case of fire: Stop leak if safe to Do so.
P370 + P378	In case of fire:
P370 + P380	In case of fire: Evacuate area.
P370 + P380 + P375	In case of fire: Evacuate area. Fight fire remotely due to the risk of explosion.
P371 + P380 + P375	In case of major fire and large quantities: Evacuate area. Fight fire remotely due to the risk of explosion.
Storage
Code	Phrase
P401
P402	Store in a dry place.
P403	Store in a well-ventilated place.
P404	Store in a closed container.
P405	Store locked up.
P406	Store in corrosive resistant/ container with a resistant inner liner.
P407	Maintain air gap between stacks/pallets.
P410	Protect from sunlight.
P411
P412	Do not expose to temperatures exceeding 50 oC/ 122 oF.
P413
P420	Store away from other materials.
P422
P402 + P404	Store in a dry place. Store in a closed container.
P403 + P233	Store in a well-ventilated place. Keep container tightly closed.
P403 + P235	Store in a well-ventilated place. Keep cool.
P410 + P403	Protect from sunlight. Store in a well-ventilated place.
P410 + P412	Protect from sunlight. Do not expose to temperatures exceeding 50 oC/122oF.
P411 + P235	Keep cool.
Disposal
Code	Phrase
P501	Dispose of contents/container to ...
P502	Refer to manufacturer/supplier for information on recovery/recycling

Ghs Hazard Statements

Physical hazards
Code	Phrase
H200	Unstable explosive
H201	Explosive; mass explosion hazard
H202	Explosive; severe projection hazard
H203	Explosive; fire, blast or projection hazard
H204	Fire or projection hazard
H205	May mass explode in fire
H220	Extremely flammable gas
H221	Flammable gas
H222	Extremely flammable aerosol
H223	Flammable aerosol
H224	Extremely flammable liquid and vapour
H225	Highly flammable liquid and vapour
H226	Flammable liquid and vapour
H227	Combustible liquid
H228	Flammable solid
H229	Pressurized container: may burst if heated
H230	May react explosively even in the absence of air
H231	May react explosively even in the absence of air at elevated pressure and/or temperature
H240	Heating may cause an explosion
H241	Heating may cause a fire or explosion
H242	Heating may cause a fire
H250	Catches fire spontaneously if exposed to air
H251	Self-heating; may catch fire
H252	Self-heating in large quantities; may catch fire
H260	In contact with water releases flammable gases which may ignite spontaneously
H261	In contact with water releases flammable gas
H270	May cause or intensify fire; oxidizer
H271	May cause fire or explosion; strong oxidizer
H272	May intensify fire; oxidizer
H280	Contains gas under pressure; may explode if heated
H281	Contains refrigerated gas; may cause cryogenic burns or injury
H290	May be corrosive to metals
Health hazards
Code	Phrase
H300	Fatal if swallowed
H301	Toxic if swallowed
H302	Harmful if swallowed
H303	May be harmful if swallowed
H304	May be fatal if swallowed and enters airways
H305	May be harmful if swallowed and enters airways
H310	Fatal in contact with skin
H311	Toxic in contact with skin
H312	Harmful in contact with skin
H313	May be harmful in contact with skin
H314	Causes severe skin burns and eye damage
H315	Causes skin irritation
H316	Causes mild skin irritation
H317	May cause an allergic skin reaction
H318	Causes serious eye damage
H319	Causes serious eye irritation
H320	Causes eye irritation
H330	Fatal if inhaled
H331	Toxic if inhaled
H332	Harmful if inhaled
H333	May be harmful if inhaled
H334	May cause allergy or asthma symptoms or breathing difficulties if inhaled
H335	May cause respiratory irritation
H336	May cause drowsiness or dizziness
H340	May cause genetic defects
H341	Suspected of causing genetic defects
H350	May cause cancer
H351	Suspected of causing cancer
H360	May damage fertility or the unborn child
H361	Suspected of damaging fertility or the unborn child
H361d	Suspected of damaging the unborn child
H362	May cause harm to breast-fed children
H370	Causes damage to organs
H371	May cause damage to organs
H372	Causes damage to organs through prolonged or repeated exposure
H373	May cause damage to organs through prolonged or repeated exposure
Environmental hazards
Code	Phrase
H400	Very toxic to aquatic life
H401	Toxic to aquatic life
H402	Harmful to aquatic life
H410	Very toxic to aquatic life with long-lasting effects
H411	Toxic to aquatic life with long-lasting effects
H412	Harmful to aquatic life with long-lasting effects
H413	May cause long-lasting harmful effects to aquatic life
H420	Harms public health and the environment by destroying ozone in the upper atmosphere