Category: nitriles-buliding-blocks

Related Products of 1953-99-7, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 1953-99-7 name is 3,4,5,6-Tetrachlorobenzene-1,2-dicarbonitrile, This compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.

In a 100 ml flask, 3,4,5,6-tetrachlorophthalonitrile (5 g), 2-butylphenol (4.75 g), K2CO3 (3.9 g) N,N-dimethylformamide (25 ml) was added and stirred while heating to 70 ¡ã C. After completion of the reaction, the reaction mixture is extracted with EA (ethyl acetate). After extraction and concentration, a solid can be obtained. The solid thus obtained is dissolved in a small amount of dichloromethane, washed with hexane several times, filtered and vacuum dried to obtain 3,4,6-trichloro-5-(2-butyl-phenoxy)-phthalonitrile.

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 3,4,5,6-Tetrachlorobenzene-1,2-dicarbonitrile, and friends who are interested can also refer to it.

Reference:
Patent; Samsung SDI Co., Ltd; Seo Hye-won; Shin Myeong-yeop; Jeong Ui-su; Han Gyu-seok; (56 pag.)KR2019/11995; (2019); A;,
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Related Products of 39581-21-0, The chemical industry reduces the impact on the environment during synthesis 39581-21-0, name is N-Butyl-2-cyano-acetamide, I believe this compound will play a more active role in future production and life.

General procedure: To a stirred solution of the cyanoacetamide (2.0mmol) in EtOH (3mL), the ketone or aldehyde (2.0mmol) was added and dissolved. Then, triethylamine (Et3N) (2.0mmol) and S8 (0.25mmol) were added and the reaction mixture was refluxed overnight. Afterwards, it was diluted with EtOAc (25mL) and washed with water (2¡Á25mL) and brine (2¡Á25mL). The combined organic layers were dried over MgSO4, filtrated and the solvent was removed under reduced pressure. Further purification by flash chromatography, with heptane:EtOAc 3:1 (v/v) as eluent, was performed when needed.

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, N-Butyl-2-cyano-acetamide, other downstream synthetic routes, hurry up and to see.

Reference:
Article; Eleftheriadis, Nikolaos; Poelman, Hessel; Leus, Niek G.J.; Honrath, Birgit; Neochoritis, Constantinos G.; Dolga, Amalia; Doemling, Alexander; Dekker, Frank J.; European Journal of Medicinal Chemistry; vol. 122; (2016); p. 786 – 801;,
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Adding a certain compound to certain chemical reactions, such as: 41963-20-6, name is 4-Bromo-3-methylbenzonitrile, 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 41963-20-6, COA of Formula: C8H6BrN

Example 4Reductive Elimination from Pd-F ComplexesGeneral Procedure. In a nitrogen-filled glovebox, a screw-cap NMR tube was charged with (BrettPhos)Pd(Ar)(F) complex, aryl bromide (where applicable) and toluene. The tube was capped and taken out of the box and standard (p-fluorotoluene) was added via syringe. In a Varian 500 spectrometer, a broadband gXH probe was tuned to 19F and heated to 100¡ã C. Over the course of 2-3 h, a 19F-NMR spectrum was obtained every 5 minutes with 5 minutes acquisition time per spectrum. Every spectrum was normalized to the standard to account for differences in the tuning of the NMR probe. Reductive Elimination of 5. See FIG. 14. a) 10 mg (BrettPhos)Pd(2-Me,4-CNC6H3)(F) (13 mummol), 1 mL toluene. The fitted curve shows t1/2=14 min. b) 10 mg (BrettPhos)Pd(2-Me,4-CNC6H3)(F) (13 mummol), 12.5 mg ArBr (64 mummol, 5 eq), 0.6 mL toluene. c) The fitted curve shows t1/2=18 min.

If you are interested in these compounds, you can also browse my other articles.Thank you for taking the time to read this article. I hope you enjoyed it.

Reference:
Patent; Massachusetts Institute of Technology; US2011/15401; (2011); 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. 612-24-8, name is 2-Nitrobenzonitrile, This compound has unique chemical properties. The synthetic route is as follows., COA of Formula: C7H4N2O2

General procedure: SAC (300mg) and NaBH4 (4.0mmol) were added to a solution of nitroarenes (1.0mmol) in EtOH/water (1/1) (20ml). The reaction mixture was stirred for 4h at the temperature indicated in Table3. At the end of the reaction, the catalyst was removed by filtering and the filtrate was extracted with 3¡Á70ml EtOAc. The combined organic layers were dried over MgSO4 and concentrated in a vacuum.

According to the analysis of related databases, 612-24-8, the application of this compound in the production field has become more and more popular.

Reference:
Article; Genc, Hayriye; Catalysis Communications; vol. 67; (2015); p. 64 – 67;,
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Reference of 60702-69-4, These common heterocyclic compound, 60702-69-4, name is 2-Chloro-4-fluorobenzonitrile, 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.

The mixture of 2-chloro-3-fluorobenznitrile (28) (2.00 g,12.9 mmol), L-leucine (27a, 2.02 g, 15.4 mmol) and cesium carbonate(5.45 g, 16.7 mmol) in DMSO (60 mL) was stirred at 90 C for12 h. The mixture was extracted with aqueous NaHCO3 twice andaqueous phase was combined. The aqueous phase was acidifiedwith citric acid and extracted with EtOAc twice. The organic layerswere combined, washed with brine, dried over MgSO4 and concentratedin vacuo to give 29a (3.43 g, 12.9 mmol, 100%) as a brownoil. 1H NMR (300 MHz, CDCl3) d 0.96 (3H, d, J = 6.0 Hz), 1.01 (3H,d, J = 6.2 Hz), 1.65-1.88 (3H, m), 4.06-4.16 (1H, m), 4.50-4.62(1H, m), 6.50 (1H, dd, J = 8.6, 2.4 Hz), 6.65 (1H, d, J = 2.5 Hz), 7.42(1H, d, J = 8.5 Hz).

Statistics shows that 2-Chloro-4-fluorobenzonitrile is playing an increasingly important role. we look forward to future research findings about 60702-69-4.

Reference:
Article; Aikawa, Katsuji; Asano, Moriteru; Ono, Koji; Habuka, Noriyuki; Yano, Jason; Wilson, Keith; Fujita, Hisashi; Kandori, Hitoshi; Hara, Takahito; Morimoto, Megumi; Santou, Takashi; Yamaoka, Masuo; Nakayama, Masaharu; Hasuoka, Atsushi; Bioorganic and Medicinal Chemistry; vol. 25; 13; (2017); p. 3330 – 3349;,
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Electric Literature of 97165-77-0,Some common heterocyclic compound, 97165-77-0, name is 3,5-Dibromobenzonitrile, molecular formula is C7H3Br2N, 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.

A round-bottomed flask was charged with 3,5-dibromobenzonitrile (15.65 g, 60.00 mmol), sodium azide (7.80 g, 120.00 mmol) and zinc bromide (27.00 g, 120.00 mmol). After degassed, DMF (100 mL) was added. The reaction mixture was heated to 120 C and stirred at this temperature until complete. The reaction was cooled to rt and then in an ice-water bath. 300 mL of IN aqueous HCl was added. The white precipitate formed was collected by suction filtration, washed with water, and dried together with phosphorous pentoxide under vacuum to afford 17.32 g (95 %) of product.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 3,5-Dibromobenzonitrile, its application will become more common.

Reference:
Patent; DENOVAMED INC.; WU, Fan; LU, Erhu; BARDEN, Christopher J.; WO2012/116452; (2012); A1;,
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Related Products of 127946-77-4, 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. 127946-77-4, name is 1-Amino-1-cyclopropanecarbonitrile hydrochloride belongs to nitriles-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

To a solution of (S)-2-((ieri-butoxycarbonyl)amino)-3-(3-chloro-4-(trifluoromethoxy)- phenyl)propanoic acid (example la; 3.52 g, 9.17 mmol, Eq: 1) in DMF (40 ml) 1- aminocyclopropanecarbonitrile hydrochloride (1.31 g, 11 mmol, Eq: 1.2), HATU (6.98 g, 18.3 mmol, Eq: 2) and /Pr2Net (4.15 g, 5.61 ml, 32.1 mmol, Eq: 3.5) were added at 0 C under an Argon atmosphere. The mixture was stirred for 3h, during that time to the mixture was warmed up to 25 C. After that the mixture was diluted with EtOAc. The organic phase was extracted with water (2x) and brine (3x), dried over Na2S04, filtered, and evaporated to dryness. The mixture was purified by flash chromatography (Si02; CH2Cl2/EtOAc, gradient from 100:0 to 0: 100 within 40 min) to yield the title compound (3.14 g; 76.4%) as a yellow solid. MS (ESI): m/z = 446.1 [M-H] .

The synthetic route of 1-Amino-1-cyclopropanecarbonitrile hydrochloride has been constantly updated, and we look forward to future research findings.

Reference:
Patent; F. HOFFMANN-LA ROCHE AG; HOFFMANN-LA ROCHE INC.; GIROUD, Maude; HAAP, Wolfgang; KUHN, Bernd; MARTIN, Rainer E.; (75 pag.)WO2017/89389; (2017); A1;,
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Related Products of 1835-65-0,Some common heterocyclic compound, 1835-65-0, name is 3,4,5,6-Tetrafluorophthalonitrile, molecular formula is C8F4N2, 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.

Toamixtureof5mmol of tetrafluorophthalonitrile (1.2 g,5mmol) and5mmol of 4-Methoxy-1-naphthol (0.87 g, 5 mmol) in 50 ml of DMSO at ambient temperature was added 5 mmolof lithium hydroxide monohydrate (0.21 g, 5 mmol) within 0.5 h. The mixture was stirred for24 h at same temperature and then it was poured to 100ml of water. Then extracted with chloroform(2 ¡Á 100 mL), washed with water (1 ¡Á 100 mL) and brine (1 ¡Á 100 mL) solution anddried over Na2SO4. The solvent was removed under reduced pressure. The resulting residuewas purified by silica-gel column chromatography using Benzene:Hexane (8:2) as an eluent toobtain compound 3 (1.41 g, 80.1percent) as a yellow solid. 1H NMR (600MHz, CDCl3 ppm) delta 7.94(d, J = 8.2 Hz, 1H), 7.43 (d, J = 8.2 Hz, 1H), 7.30-7.26 (m, 1H), 7.19-7.15 (m, 1H), 6.45 (d,J = 8.3 Hz, 1H), 6.36 (d, J = 8.3 Hz, 1H). 13C NMR (125 MHz, CDCl3, ppm) delta 155.7, 153.9,152.6, 146.1, 143.5, 128.5, 127.4, 126.7, 126.2, 125.4, 122.6, 122.0, 121.1, 120.6, 109.8, 109.1,102.2, 101.9, 55.8. IR (KBr tablet) numax/cm?1: 3010, 2940, 2236, 1633, 1597, 1386, 1289, 1152,1042, 978, 760. MALDI-TOF-MS: m/z calcd for C19H9F3N2O2, 354; found 355 [M + H+]+.

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 3,4,5,6-Tetrafluorophthalonitrile, its application will become more common.

Reference:
Article; Jeong, Jaemyeng; Kumar, Rangaraju Satish; Kim, Ick Jin; Son, Young-A; Molecular Crystals and Liquid Crystals; vol. 644; 1; (2017); p. 249 – 256;,
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Electric Literature of 621-03-4, 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. 621-03-4, name is 2-Cyano-N-phenylacetamide belongs to nitriles-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

General procedure: To a solution of 0.87 g t-BuOK (7.8 mmol) in 10 cm3 drymethanol, 2-cyanoacetamide 2a-2g (2.9 mmol) was added.The reaction mixture was stirred for 10-15 min, followed by cooling to 0 C and adding a solution of o-(azidomethyl)benzoate 1a-1c (2.6 mmol) in 5 cm3 drymethanol. After heating the reaction mixture back to room temperature, it was stirred under TLC monitoring for36-48 h and evaporated. Water (15 cm3) was added to the residue and it was acidified with HCl to pH 4-5. The resulting precipitate was filtered off and recrystallized from acetic acid.

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-Cyano-N-phenylacetamide, other downstream synthetic routes, hurry up and to see.

Reference:
Article; Yakovenko, Georgiy G.; Yagodkina, Marta S.; Bol?but, Andriy V.; Shishkina, Svitlana V.; Vovk, Mykhailo V.; Monatshefte fur Chemie; vol. 148; 6; (2017); p. 1035 – 1041;,
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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. 6609-56-9, name is 2-Methoxybenzonitrile, This compound has unique chemical properties. The synthetic route is as follows., Application In Synthesis of 2-Methoxybenzonitrile

Example 34 5-Bromo-2-(methyloxy)benzonitrile Br2 (13.7 g, 86.0 mmol) in CHCl3 (20 mL) was added to a solution of 2-(methyloxy)benzonitrile (10.9 g, 81.9 mmol) in CHCl3 (50 mL). The mixture was refluxed for 29 h. The reaction was allowed to cool to room temperature, and washed with saturated sodium bisulfite (50 mL), and brine (50 mL). The organic layer was dried over anhydrous sodium sulfate. Evaporation of the solvent afforded 5-bromo-2-(methyloxy)benzonitrile (12.4 g, 71percent).

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 6609-56-9.

Reference:
Patent; Glaxo Group Limited; US2009/203657; (2009); A1;,
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts