Category: nitriles-buliding-blocks

Application of 7357-70-2, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 7357-70-2, name is 2-Cyanothioacetamide belongs to nitriles-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

Example 12A (S)-2-Amino-4-{4-[(2,2-dimethyl-1,3-dioxolan-4-yl)methoxy]phenyl}-6-mercaptopyridine-3,5-dicarbonitrile 1.52 g (6.43 mmol) of the compound from Example 11A, 1.29 g (12.9 mmol) of cyanothioacetamide and 1.3 g (12.9 mmol) of 4-methylmorpholine are dissolved in 15 ml of ethanol, and the mixture is stirred under reflux for 3 h. The mixture is then stirred at RT for 18 h. The reaction solution is concentrated using a rotary evaporator, and the residue is chromatographed on silica gel 60 (mobile phase: dichloromethane/ethanol 10:1). Yield: 1.06 g (43% of theory) LC-MS (Method 3): Rt=1.75 min; MS (ESIpos): m/z=383 [M+H]+.

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 2-Cyanothioacetamide, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; Bayer HealthCare AG; US2008/269300; (2008); A1;,
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 17417-09-3, name is 2-Fluoro-5-nitrobenzonitrile, This compound has unique chemical properties. The synthetic route is as follows., Quality Control of 2-Fluoro-5-nitrobenzonitrile

General procedure: General procedure: 3-Hydroxy oxetane (370 mg, 5 mmol, 2 equiv) in THF (15 ml) under argon gas, was cooled to 0 C. Potassium tert-butoxide (617 mg, 5.5 mmol, 2.2 equiv) was added in one portion, and the reaction mixture was stirred for 20 minutes at 0 C. Then 2-fluoro-5-nitrobenzonitrile (415 mg, 2.5 mmol, 1 equiv) was added in one portion, and the reaction mixture was stirred for 10 minutes at 0 C and allowed to warm up to ambient temperature over 1 hour. The reaction mixture was concentrated, and the residue was taken in DCM and water. The layers were separated, and the organic layer was washed with water (x2), dried over Na2S04, filtered, and concentrated to provide 5-nitro-2-(oxetan- 3-yloxy)benzonitrile (495 mg, 90%) as a brown-yellow solid that was used without further purification. [00576] 1H NMR (300 MHz; 6-DMSO) delta 8.74-8.75 (m, 1H), 8.42-8.47 (m, 1H), 7.09- 7.12 (dd, 1H, J = 0.9Hz, J = 9.3Hz), 5.56-5.63 (m, 1H), 4.96-5.00 (m, 2H), 4.59-4.63 (m, 2H); m/z = 221 (M+H)+.

Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of 17417-09-3.

Reference:
Patent; RIGEL PHARMACEUTICALS, INC.; SINGH, Rajinder; DUNCTON, Matthew; ZHANG, Jing; ALVAREZ, Salvador; TSO, Kin; HOLLAND, Sacha; YEN, Rose; KOLLURI, Rao; HECKRODT, Thilo; CHEN, Yan; MASUDA, Esteban; LI, Hui; PAYAN, Donald G.; KELLEY, Ryan; WO2013/152198; (2013); A1;,
Nitrile – Wikipedia,
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Electric Literature of 64248-62-0, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 64248-62-0, name is 3,4-Difluorobenzonitrile belongs to nitriles-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

To a solution of terf-butyl-(S)-3-hydroxypyrrolidine-l-carboxylate (4.44 g, 23.7 mmol) in N,N- dimethylformamide (40 mL), sodium hydride (1.72 g, 43.1 mmol) was added under nitrogen atmosphere at 0 C and stirred for 30 min. To the resulting reaction mixture, 3,4-difluorobenzonitrile (3 g, 21.6 mmol) in /V, /V-di methylformam ide (10 mL) was added slowly at 0 C and stirred at 25 C for 2 h. The reaction mixture was quenched with ammonium chloride solution and diluted with ethyl acetate (100 mL). The dichloromethane layer was collected and washed twice with water (80 mL), dried over anhydrous sodium sulphate and concentrated under reduced pressure to obtain the crude product. The crude product was purified by flash column chromatography on silica gel by eluent 50% ethyl acetate in hexane to obtain tert- butyl (S)-3-(4-cyano-2-fluorophenoxy)pyrrolidine-l-carboxylate (5.3 g, 17.3 mmol, 80% yield).

The synthetic route of 3,4-Difluorobenzonitrile has been constantly updated, and we look forward to future research findings.

Reference:
Patent; PI INDUSTRIES LTD.; BHUJADE, Paras Raybhan; NAIK, Maruti N; PAWAR, Rajesh; TRIVEDI, Pooja; DENGALE, Rohit Arvind; KULKARNI, Shantanu Ganesh; TEMBHARE, Nitin Ramesh; AUTKAR, Santosh Shridhar; GARG, Ruchi; VENKATESHA, Hagalavadi M; KLAUSENER, Alexander G.M.; (172 pag.)WO2020/70610; (2020); A1;,
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Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 194853-86-6, name is 4-Fluoro-2-(trifluoromethyl)benzonitrile, This compound has unique chemical properties. The synthetic route is as follows., Quality Control of 4-Fluoro-2-(trifluoromethyl)benzonitrile

General procedure: Sixty per cent NaH in oil was washed with hexane and then added to a stirred solution of phenothiazine 5 or phenoxazine 6 derivative (10.0mmol) in dry THF (15mL) under a nitrogen atmosphere at room temperature. After stirring for 30min, 4-fluoro-2-(fluoromethyl)-benzonitrile 7 was added. (0007) The reaction mixture was quenched with water (30mL). The organic phase was separated, dried over anhydrous MgSO4, filtered and concentrated under reduced pressure. The residue obtained was purified by column chromatography using a mixture of hexane/ethyl acetate (3:1) as eluent.

Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of 194853-86-6.

Reference:
Article; Baraket, Faiza; Pedras, Bruno; Torres, Erica; Brites, Maria Joao; Dammak, Mohamed; Berberan-Santos, Mario N.; Dyes and Pigments; vol. 175; (2020);,
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Some common heterocyclic compound, 330793-38-9, name is 4-Bromo-2-methoxybenzonitrile, molecular formula is C8H6BrNO, traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route. Product Details of 330793-38-9

b 4-Bromo-2-methoxybenzoic acid 4-Bromo-2-methoxybenzonitrile (7.35 g, 35 mmol) was dissolved in dioxane (400 mL). Sodium hydroxide (2.0 N, 200 mL) was added and the suspension was heated at 100° C. for 16hours. Organic solvent was removed under reduced pressure and the aqueous mixture was filtered and washed with water. The filtrate was neutralized with hydrochloric acid (5.0N) to pH 1. The solid was collected by filtration to give 4-bromo-2-methoxybenzoic acid (3 g, 37percent). 1H NMR (DMSO-d6) delta 3.84(s, 3H), 7.21 (d, J=8.25 Hz, 1H), 7.33 (s, 1H), 7.58 (d, J=8.23 Hz, 1H).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 330793-38-9, its application will become more common.

Reference:
Patent; Abbott Laboratories; US2002/156081; (2002); A1;,
Nitrile – Wikipedia,
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Related Products of 330792-69-3, These common heterocyclic compound, 330792-69-3, name is 2-(Methoxy(4-phenoxyphenyl)methylene)malononitrile, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.

1,1-Dicyano-2-methoxy-2-(4-phenoxyphenyl)ethene (22.5 g) and 1,1-dicyano-2-methoxy-2-(4-phenoxyphenyl)ethene oil (15g) are treated with a solution of hydrazine hydrate (18 mL) in ethanol (25 mL) and heated on the steambath for 1 hour. Ethanol (15 mL) is added followed by water (10 mL). The precipitated solid is collected and washed with ethanol:water (4:1) and then dried in air to give 3-amino-4-cyano-5-(4-phenoxyphenyl)pyrazole as a pale orange solid.

The synthetic route of 330792-69-3 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Pharmacyclics, Inc.; Buggy, Joseph J.; Chang, Betty Y.; US2013/178483; (2013); A1;,
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Reference of 6136-93-2, The chemical industry reduces the impact on the environment during synthesis 6136-93-2, name is 2,2-Diethoxyacetonitrile, I believe this compound will play a more active role in future production and life.

To a stirred solution of 2,2-diethoxyacetonitrile (XIX) (0.33 g, 2.52 mmol) in a vial containing MeOH (2.52 mE) was added MeONa (0.23 mE, 0.25 mmol) dropwise. The reaction was stirred at 22 C. for 20 h. HOAc was added (14.4 tE, 0.25 mmol) (checked that the pH is 7-8 using pH strips) followed by (4-bromo-3-methyl-phenyl)methan- amine (XXV) (0.5 g, 2.52 mmol). The mixture was stirred at 40 C. for 40 h. The solvent was removed under vacuum. Sulthric Acid (4.09 mE, 75.49 mmol) was then added and stirred at 40 C. for 16 h. NH4OH (33.4 mE, 78 mmol) was added at 0 C. The reaction was filtered through Celite and purified by C18 silica gel (240 g) [0-30% H20/MeCN (0.1% Formic acid)] to produce a 1:1 mixture (by NMR) of 6-bromo-7-methylisoquinolin-3-amine (XXVI) and6-bromo-5-methylisoquinolin-3-amine (XXVII) (378 mg,1.59 mmol, 63.4% yield). ?H NMR (499 MHz, DMSO-d5)0 ppm 2.40 (3H, s), 2.52 (3H, s), 5.96 (2H, s), 6.12 (1H, s),6.54 (1H, s), 6.71 (1H, s), 7.27 (1H, d, J=8.78 Hz), 7.58 (1H, d, J=8.78 Hz), 7.73 (1H, s), 7.86 (1H, s), 8.74 (1H, s), 8.79 (1H, s); ESIMS found for C,0H9BrN2 mlz 237.0 (79BrM+H).

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 2,2-Diethoxyacetonitrile, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; Samumed, LLC; KC, Sunil Kumar; Mak, Chi Ching; Hofilena, Brian Joseph; Mittapalli, Gopi Kumar; Eastman, Brian Walter; Cao, Jianguo; Bollu, Venkataiah; Chiruta, Chandramouli; (149 pag.)US2019/125740; (2019); A1;,
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Electric Literature of 50670-64-9, The chemical industry reduces the impact on the environment during synthesis 50670-64-9, name is 5-Amino-2-methylbenzonitrile, I believe this compound will play a more active role in future production and life.

The 2,4-dicyanobenzyl bromide (melting point 106) can be obtained by bromination of 2,4-dicyanotoluene (melting point 142-143) with bromine in chlorobenzene with ultra-violet irradiation. The 2,4-dicyanotoluene can be formed from 3-cyano-4-methyl-1-aminobenzene by the Sandmeyer reaction.

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 5-Amino-2-methylbenzonitrile, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; Sandoz Ltd.; US4032558; (1977); A;,
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Nitriles – Chemistry LibreTexts

Application of 103146-25-4, In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 103146-25-4 as follows.

Experiment 38. A range of experiments were conducted examining the resolution of diol with (+)- (S,S)-DTT. The general procedure is described below, and the details and results for each reaction are in table 1.Racemic diol (20 g, 58.4 mmol) was dissolved in approximately half of the solvent used for the experiment at 40 0C. (-H)-(S5S)-DTT-H2O (quantity specified in the table) was added as a solution in the other half of the solvent. The solution was held at 40 0C and was seeded within two minutes with crystals of (S)-diol. ./2(-H)-(S5S)-DTT (approximately 5 mg). Crystallisation typically began within 5-10 minutes after seeding. After 2 h at 40 0C, the temperature of the solution was lowered to 20 0C over 2 h, and the solution was held at this temperature for a further 1 h. The product was then separated by filtration, washed with the approriate solvent (2 x 20 mL) and dried overnight at 60 0C under reduced pressure.

According to the analysis of related databases, 103146-25-4, the application of this compound in the production field has become more and more popular.

Reference:
Patent; H. LUNDBECK A/S; WO2009/33488; (2009); A1;,
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts

Application of 134227-45-5, The chemical industry reduces the impact on the environment during synthesis 134227-45-5, name is 3,4,5-Trifluorobenzonitrile, I believe this compound will play a more active role in future production and life.

Step A: Preparation of 4-[(l,3-Dimethyl-lH-pyrazol-5-yl)oxy]-3 ,5 -difluorobenzonitrile Potassium carbonate (1.38 g, 10 mmol) was added to a solution of 2,4-dihydro-2,5-dimethyl-3H-pyrazol-3-one (0.70 g, 6.3 mmol) in N,Lambda/-dimethylformamide (15 mL).3,4,5-Trifluorobenzonitrile (0.94 g, 6.0 mmol) was added, and the reaction mixture was heated at 75 0C under a nitrogen atmosphere for 16 h, then allowed to cool. The reaction mixture was partitioned between water (60 mL) and ethyl acetate (30 mL). The organic phase was washed with water (2 x 30 mL) and brine (30 mL), dried over MgSOphi and concentrated to give the title compound as a yellow oil (1.38 g).1H NMR delta 7.36 (m, 2H), 5.24 (s, IH), 3.78 (s, 3H), 2.16 (s, 3H).

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 3,4,5-Trifluorobenzonitrile, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; E. I. DU PONT DE NEMOURS AND COMPANY; LONG, Jeffrey, Keith; HONG, Wonpyo; TAGGI, Andrew, Edmund; WO2010/101973; (2010); A1;,
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts