Category: nitriles-buliding-blocks

Adding a certain compound to certain chemical reactions, such as: 6587-24-2, name is Methyl 2-cyanobenzoate, belongs to nitriles-buliding-blocks compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 6587-24-2, Computed Properties of C9H7NO2

3a A mixture of methyl 2-cyanobenzoate (1.0 g, 6.2 mmol) and PtO2 (100 mg) in 20 mL EtOH and 1 ml of chloroform was hydrogenated under 50 psi of hydrogen for 2 h. The reaction mixture was filtered through Celite in a sintered glass funnel and concentrated on a rotary evaporator to give methyl 2-(aminomethyl)benzoate as a HCl salt and this was carried to the next step crude.

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, Methyl 2-cyanobenzoate, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; Sheppeck, James; US2004/67996; (2004); A1;,
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Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 3215-64-3, name is 2-(2,6-Dichlorophenyl)acetonitrile, A new synthetic method of this compound is introduced below., Product Details of 3215-64-3

A mixture of 6-chloro-4-(ethyl amino) nicotinaldehyde (Scheme 1 compound 6) (1.20 g, 6.52 mmol), 2-(2,6-dichlorophenyl)acetonitrile (1.57 g, 8.47 mmol) and K2C03 (2.70 g, 19.56 mmol) in dry DMF (12 mL) was heated to 100 C under nitrogen atmosphere for 16 h. After TLC showed the starting material was completely consumed, the reaction mixture was cooled to RT, diluted with EtOAc (100 mL), washed with water (2 x 30 mL) and brine (20 mL) then dried over Na2S04 and concentrated to give a residue which was purified by flash chromatography on silica gel (eluting with petroleum ether/EtOAc 100/0 gradually increasing to 70/30) to give 7-chloro-3-(2,6-dichlorophenyl)-l-ethyl-l,6-naphthyridin-2(lH)-imine (1.5 g, 45%) as a black gummy solid. 1H NMR (400 MHz, DMSO-d6): delta 8.45 (d, J= 4.7 Hz, 1H), 7.66 (d, J= 8.1 Hz, 2H), 7.56 (t, J= 7.2 Hz, 1H), 7.50 (s, 1H), 7.45 (s, 1H), 6.85 (d, J= 10.0 Hz, 1H), 4.30 (s, 2H), 1.22-1.16 (m, 3H). MS [ESI, MH+] = 352.05.

The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.

Reference:
Patent; MANNKIND CORPORATION; TOLERO PHARMACEUTICALS, INC.; ZENG, Qingping; FARIS, Mary; MOLLARD, Alexis; WARNER, Steven L.; FLYNN, Gary A.; WO2014/52365; (2014); A1;,
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Some common heterocyclic compound, 916792-13-7, name is 4-Bromo-2-fluoro-5-methylbenzonitrile, molecular formula is C8H5BrFN, 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. Recommanded Product: 4-Bromo-2-fluoro-5-methylbenzonitrile

To a solution of 4-bromo-2-fluoro-5-methylbenzonitrile (10.0 g, 46.7 mmol) in N,N-dimethylacetamide (30 mL) was added Pd(dppf)Cl2 (5.1 g, 7.0 mmol) and MeOH (10 mL), followed by TEA (14.3g, 140.1 mmol). The mixture was heated at 90 C overnight under carbon monoxide (5 MPa). The mixture was cooled to RT and the mixture was diluted with water, extracted with EA. The combined organic layers were concentrated to give the crude product, which was purified by silica gel chromatography eluting with EA/petroleum ether from 5% to 10% to give methyl 4-cyano-5-fluoro-2-methylbenzoate (7.33 g, 81%) as a white solid.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 916792-13-7, its application will become more common.

Reference:
Patent; BIOTHERYX, INC.; MERCURIO, Frank; CHAN, Kyle, W.H.; SULLIVAN, Robert; ERDMAN, Paul, E.; FUNG, Leah; (105 pag.)WO2018/169777; (2018); A1;,
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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 17354-04-0 as follows. Formula: C10H10N2O4

General procedure: Piperidine (0.03 ml, 5 mol %) was added to a warm solution of the appropriate salicylaldehyde 5 (5 mmol) and 2-(4,5-dimethoxy-2-nitrophenyl)acetonitrile (1.12 g, 5 mmol) in EtOH (10 ml). The resulting solution was refluxed with stirring for 5 h. The mixture was treated with a solution of concentrated H2SO4 (0.55 ml) in EtOH (2 ml) and refluxed with stirring for 2 h. The obtained precipitate was filtered, washed with EtOH (10 ml), hot H2O (40 ml) and finally with EtOH (10 ml), and dried at 100 C.

According to the analysis of related databases, 17354-04-0, the application of this compound in the production field has become more and more popular.

Reference:
Article; Irgashev, Roman A.; Karmatsky, Arseny A.; Slepukhin, Pavel A.; Rusinov, Gennady L.; Charushin, Valery N.; Tetrahedron Letters; vol. 54; 42; (2013); p. 5734 – 5738;,
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Adding a certain compound to certain chemical reactions, such as: 15666-97-4, name is Octyl 2-cyanoacetate, belongs to nitriles-buliding-blocks compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 15666-97-4, Formula: C11H19NO2

General procedure: Aldehyde 5a-d (1.0equiv.), cyanoalkyl acetate (3.0equiv.) and a few drops of triethylamine were dissolved in chloroform (30mL) under a nitrogen atmosphere and heated to reflux overnight. After the completion of the reaction, water was added and the product was extracted with dichloromethane, washed with brine and dried over anhydrous MgSO4. The crude product was purified by column chromatography with dichloromethane/Hexanes as eluent. It was then further purified by trituration with acetone to yield the desired compounds 1-4.

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, Octyl 2-cyanoacetate, other downstream synthetic routes, hurry up and to see.

Reference:
Article; Priyanka, Pragya; Vegiraju, Sureshraju; Lin, Jhe-Yi; Ni, Jen-Shyang; Huang, Hsun-Ying; Dwi Agustin, Rachmawati; Yau, Shueh Lin; Lin, Tzu-Chau; Chen, Ming-Chou; Dyes and Pigments; vol. 133; (2016); p. 65 – 72;,
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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. 243128-37-2, name is 4-Fluoro-3-methoxybenzonitrile, This compound has unique chemical properties. The synthetic route is as follows., SDS of cas: 243128-37-2

A mixture of 57 (1.0 g, 5.8 mmol), 5-iodophenol (1.27 g, 5.8 mmol) in DMSO (10.0 mL) and anhydrous K2CO3 (1.2 g, 8.7 mmol) was heated at 110 C for 1 h. The mixture was poured into ice water and extracted with EtOAc (3 x 50 mL). The organic layer was sequentially washed with brine (2 x 75 mL), dried over anhydrous Na2SC>4, and concentrated in vacuo to give 3-(3-iodophenoxy)-4- methoxybenzonitrile (66 f) (1.76 g, 81 %) which was used without further purification. HR-MS (ES) calcd for C14H10INO2 [M+l]+ 351.9803, found 351.9800.

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 243128-37-2.

Reference:
Patent; YALE UNIVERSITY; WO2013/56003; (2013); A2;,
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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. 49674-16-0, name is 5-Amino-3-bromobenzonitrile, This compound has unique chemical properties. The synthetic route is as follows., category: nitriles-buliding-blocks

To a stirring solution of 103 mg (0.520 mmol) of 3-amino-5-bromobenzonitrile in 3 mL of pyridine was added 0.12 mL (1.27 mmol) Of Ac2O. The solution was stirred at r.t. for about 5.5 h and concentrated. Ethyl acetate was added, and the organic layer was washed with H2O and brine, dried over Na2SO4, filtered and concentrated. N-(3-bromo-5- cyanophenyl)acetamide was used for the next reaction without further purification.

According to the analysis of related databases, 49674-16-0, the application of this compound in the production field has become more and more popular.

Reference:
Patent; COMENTIS, INC.; PURDUE RESEARCH FOUNDATION; WO2009/42694; (2009); A1;,
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Related Products of 939-80-0,Some common heterocyclic compound, 939-80-0, name is 4-Chloro-3-nitrobenzonitrile, molecular formula is C7H3ClN2O2, 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.

4-Chloro-3-nitrobenzonitrile (331 mg) and cesium carbonate (700 mg) were added to a solution of compound (1a) (500 mg) in acetonitrile (5.5 mL), and the mixture was stirred under heating at 70 C. for 4 hours. After completion of the reaction, the reaction solution was allowed to standing still for cooling and partitioned between ethyl acetate and water. The organic layer was washed with saturated brine and dried by the addition of anhydrous sodium sulfate. After removal of the solvent by evaporation, the residue was subjected to slurry washing (acetonitrile/methanol), thereby to obtain compound (10a) (470 mg, yield 64%) as a milky white solid.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 4-Chloro-3-nitrobenzonitrile, its application will become more common.

Reference:
Patent; TAIHO PHARMACEUTICAL CO., LTD.; Kitade, Makoto; Ohkubo, Shuichi; Yoshimura, Chihoko; US2013/289072; (2013); A1;,
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Some common heterocyclic compound, 60710-80-7, name is 3-Amino-4-methylbenzonitrile, molecular formula is C8H8N2, 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. name: 3-Amino-4-methylbenzonitrile

i 2-Chloro-N-(5-cyano-2-methylphenyl)acetamide The subtitle compound was prepared from 5-cyano-2-methylaniline (1.6 g) and chloroacetyl chloride (1.1 ml) by the method of Example 33 step (iii) as a white solid. Yield: 1.85 g MS: APCI (-ve) 207 (M-1)

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 60710-80-7, its application will become more common.

Reference:
Patent; Meghani, Premji; Bennion, Colin; US2003/13721; (2003); A1;,
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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. 144649-99-0, name is 5-Bromo-2-methoxybenzonitrile belongs to nitriles-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. name: 5-Bromo-2-methoxybenzonitrile

Compound 64 (E)-Methyl 3-(3-(N-((3′-cyano-4′-methoxy-[l,l’-biphenyl]-4- yl)methyl)cyclohexanecarboxamido)phenyl)acrylate [00430] A mixture of Intermediate 16 (500 mg, 0.99 mmol), 5-bromo-2-methoxy-benzonitrile (316 mg, 1.49 mmol), Cs2C03 (647 mg, 1.99 mmol), Pd(PPh3)4 (230 mg, 199 mmol) in DMF (6 mL) was degassed with vacuum/nitrogen cycles (3 chi), stirred at 90 C for 12 h, and then filtered. Saturated EDTA-2Na (20 mL) was added, and the reaction mixture was stirred for 1 h and then extracted with ethyl acetate (3 x20 mL). The combined organic layers were washed with water (3 x 15 mL) and brine (2×20 mL), dried over anhydrous Na2S04, filtered and concentrated. The residue was purified by reverse-phase HPLC to give (E)-m ethyl 3-(3-(N-((3′-cyano-4′-methoxy- [l, l’-biphenyl]-4-yl)methyl)cyclohexanecarboxamido)phenyl)acrylate (110 mg, 22%) as a white solid. 1H MR (DMSO-i): delta 8.01 (d, IH), 7.96 (dd, IH), 7.58-7.70 (m, 5H), 7.42 (t, IH), 7.31 (d, IH), 7.24 (d, 2H), 7.17 (d, IH), 6.64 (d, IH), 4.89 (s., 2H), 3.95 (s, 3H), 3.71 (s, 3H), 2.19 (m, IH), 1.58-1.72 (m, 4H), 1.36-1.54 (m, 3H), 1.05-1.18 (m, IH), 0.89 (d, 2H); MS: 509.3 [M+H]+.

The synthetic route of 144649-99-0 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; METACRINE, INC.; SMITH, Nicholas D.; GOVEK, Steven P.; NAGASAWA, Johnny Y.; (228 pag.)WO2017/49172; (2017); A1;,
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