Tag: M.W=100-200

Reference of 6952-59-6, These common heterocyclic compound, 6952-59-6, name is 3-Bromobenzonitrile, 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.

General procedure: Aryl-halide (0.2 mmol, 1 equiv.), Ir(dtbbpy)(ppy)2PF6 (1.8 mg, 0.002 mmol, 1 mol %), NiCl2.glyme (4.4mg, 0.02 mmol, 10 mol %), DMSO (2.0 mL) was added to a 10 mL schlenk flask equipped with a magnetic stirrer bar. This resulting mixture was sealed and degassed via vacuum evacuation and subsequent backfill with ethylene for three times. Then, N,N,N?,N?-tetramethylethylenediamine, TMEDA(60 muL, 2 equiv.), N,N-diisopropylethylamine, DIPEA (70 muL, 2 equiv.) and H2O (7.2 muL, 2 equiv.) were subsequently added in this order. The mixture was then irradiated with blue LED (2 meter strip, 18 W)with ethylene balloon for 24 hours at 80oC (Figure S1). The reaction was added water (30 mL) and extracted with ethyl acetate (10 mL) three times. Combined organic layer was successively washed with brine three times and dried over Na2SO4 and concentrated under reduced pressure. The residue was then subjected to flash column chromatography (hexane or hexane/ethyl acetate) to yield theproduct

The synthetic route of 6952-59-6 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Li, Jiesheng; Luo, Yixin; Cheo, Han Wen; Lan, Yu; Wu, Jie; Chem; vol. 5; 1; (2019); p. 192 – 203;,
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Related Products of 71825-51-9,Some common heterocyclic compound, 71825-51-9, name is 2-Methyl-2-(4-nitrophenyl)propanenitrile, molecular formula is C10H10N2O2, 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.

To a cooled solution of 2-methyl-2-(4-nitrophenyl)propanenitrile (670 mg, 3.5 mmol) in THF (15 mL) was added BH3 (1M in THF, 14 mL, 14 mmol) dropwise at 0 C. The mixture was warmed to room temperature and heated at 70 C. for 2 h. 1N HCl solution (2 mL) was added, followed by the addition of NaOH until pH>7. The mixture was extracted with ether and ether extract was concentrated to give 2-methyl-2-(4-nitrophenyl)propan-1-amine (610 mg, 90%), which was used without further purification. 1H NMR (400 MHz, CDCl3) delta 8.20 (d, J=9.0 Hz, 2H), 7.54 (d, J=9.0 Hz, 2H), 2.89 (s, 2H), 1.38 (s, 6H).

The synthetic route of 71825-51-9 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Vertex Pharmaceuticals Incorporated; Van Goor, Fredrick F.; Burton, William Lawrence; US2015/231142; (2015); 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. 29509-06-6, name is 4-Methyl-3-oxopentanenitrile, This compound has unique chemical properties. The synthetic route is as follows., Formula: C6H9NO

General procedure: A mixture of 4-methyl-3-oxopentanenitrile 10i or 10ii (1.5eq), aldehyde 6(a-m) (1.0 eq), urea (1.5 eq) and CuCl (0.01eq) in MeOH containing concentrated H2SO4 (0.62 eq) wasstirred at reflux temperature for 3-5 days. After the reactionwas deemed complete by TLC, methanol was removed byconcentration in vacuo. The precipitated solid was extractedin dichloromethane. The dichloromethane layer was washedwithwater twice so as to removewater soluble impurities. Theorganic layerwas concentrated again to dryness in vacuo. Thecrude residue was purified by silica gel column chromatographyusing ethyl acetate: hexanes to give pyrimidine compound11(a-m).

According to the analysis of related databases, 29509-06-6, the application of this compound in the production field has become more and more popular.

Reference:
Article; Pachore, Sharad S; Ambhaikar, Narendra B; Siddaiah, Vidavalur; Khobare, Sandip R; Kumar, Sarvesh; Dahanukar, Vilas H; Kumar, U K Syam; Journal of Chemical Sciences; vol. 130; 6; (2018);,
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Electric Literature of 876-31-3, These common heterocyclic compound, 876-31-3, name is 4-(Cyanomethyl)benzonitrile, 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.

General procedure: Under N2 atmosphere, dinitrile 1 (0.2 mmol), potassium phenyltrifluoroborate 2 (147 mg, 0.8 mmol), Pd(OAc)2 (4.49 mg, 10 mol %), L4 (7.2 mg, 20 mol %), TFA/H2O (0.4 mL/0.4mL), and 2-MeTHF (2 mL) were successively added into a Schlenk reaction tube. The reaction mixture was stirred vigorously at 80 C for 48 h. After the completion of the reaction, the mixture was poured into ethyl acetate, which was washed with saturated NaHCO3 (2 × 10 mL) and then brine (1 × 10 mL). After the aqueous layer was extracted with ethyl acetate, the combined organic layers were dried over anhydrous Na2SO4 and evaporated under reduced pressure. The residue was purified by flash column chromatography (hexane/ethyl acetate) to afford the desired products 3. The physical and spectroscopic data of compounds 3a-h follow.

Statistics shows that 4-(Cyanomethyl)benzonitrile is playing an increasingly important role. we look forward to future research findings about 876-31-3.

Reference:
Article; Wang, Xingyong; Wang, Qingzong; Chen, Jiuxi; Liu, Miaochang; Ding, Jinchang; Wu, Huayue; Journal of Chemical Research; vol. 37; 8; (2013); p. 470 – 472;,
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Reference of 21803-75-8, A common heterocyclic compound, 21803-75-8, name is 4-Amino-3-chlorobenzonitrile, molecular formula is C7H5ClN2, 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.

An ethanolic solution (5 mL) of 4-amino-3-chlorobenzonitrile (L2, 1 mmol, 0.153 g) was added tothe saturated ethanolic solution (5 mL) of AgNO3. The test tube was covered with a perforated foil.After keeping the solution in air for 6 days, light yellow crystals of 2 suitable for structure determinationwere obtained. Yield 72%, m.p. 152-153 C. Anal. Calcd for C7H5AgClN3O3: C, 26.07; H, 1.56;N, 13.03%. Found: C, 26.04; H, 1.58; N, 13.01%. IR (KBr, cm-1): 3481 (m), 3361 (s), 3184 (w), 2360 (m),2206 (s), 1755 (w), 1645 (s), 1590 (m), 1525 (m), 1381 (s), 1206 (w), 887 (w), 810 (w), 666 (w), 578(w). 1H NMR (400 MHz, DMSO) delta/ppm: 7.69 (d, J = 1.9 Hz, 1H), 7.42 (dd, J = 8.5, 1.9 Hz, 1H), 6.82(d, J = 8.5 Hz, 1H), 6.42 (s, 2H).

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:
Article; Qian, Wei; Yuan, Hao-Kun; Zhang, Ran; Fang, Rui-Qin; Journal of Coordination Chemistry; vol. 69; 23; (2016); p. 3593 – 3602;,
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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. 114344-60-4, name is 2-Amino-3-bromobenzonitrile belongs to nitriles-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. Application In Synthesis of 2-Amino-3-bromobenzonitrile

General procedure: 9-Amino-4-X-5-bromo-2-(alkyl)-2,3-dihydropyrrolo[3,4-b]quinolin-1-one (X = H or F).A white slurry of 4-X-3-bromo-2-[1-(alkyl)-5-oxo-2,5-dihydro-1H-pyrrol-3-ylamino]-benzonitrile (1.0 equiv) in t-butanol (0.08-1.00 M) was warmed to 45 C and treated with sodium t-butoxide (1.2 equiv). The resulting green solution was heated at 45 C for 3 h. The reaction was cooled to room temperature, partitioned between methylene chloride and water and the organic layer was washed with saturated aqueous sodium bicarbonate and the combined aqueous layers were extracted with methylene chloride. The organic layers were washed with brine, dried over sodium sulfate, filtered, and concentrated under reduced pressure to give a light tan solid in greater than 80% yield, which was used without further purification.The intermediate compounds were prepared as follows:4-X-3-Bromo-2-[1-(alkyl)-5-oxo-2,5-dihydro-1H-pyrrol-3-ylamino]-benzonitrile (X = H or F).2-Amino-3-bromo-4-X-benzonitrile (1.0 equiv) and 1-(alkyl)-4-methoxy-1H-pyrrol-2(5H)-one (2.0 equiv) were combined in acetic acid (0.5-0.8 M benzonitrile in HOAc) and heated to 80 C. Methanesulfonic acid (2.5 equiv) was dissolved in acetic acid (10 M) and added dropwise via syringe over 15 min. The reaction was stirred for 1 h at 80 C and then cooled to rt and placed on a rotary evaporator under high vacuum for 15 min at 55 C to remove the acetic acid. The resulting oil was dissolved in methylene chloride and slowly added dropwise over 20 min to a solution of saturated aqueous sodium bicarbonate at 0-5 C, maintaining the pH value above 8. The resultant precipitate from the biphasic system was separated, washed with water twice and then with hexane once, and was dried at 50 C under high-vacuum to give a tan solid as the title compound in 70-85% yield, which was used without further purification (see Table 8).

The synthetic route of 114344-60-4 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Alhambra, Cristobal; Becker, Chris; Blake, Timothy; Chang, Amy; Damewood Jr., James R.; Daniels, Thalia; Dembofsky, Bruce T.; Gurley, David A.; Hall, James E.; Herzog, Keith J.; Horchler, Carey L.; Ohnmacht, Cyrus J.; Schmiesing, Richard Jon; Dudley, Adam; Ribadeneira, Maria D.; Knappenberger, Katherine S.; MacIag, Carla; Stein, Mark M.; Chopra, Maninder; Liu, Xiaodong F.; Christian, Edward P.; Arriza, Jeffrey L.; Chapdelaine, Marc J.; Bioorganic and Medicinal Chemistry; vol. 19; 9; (2011); p. 2927 – 2938;,
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Application of 134227-45-5, These common heterocyclic compound, 134227-45-5, name is 3,4,5-Trifluorobenzonitrile, 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.

To a solution of 2-(4-(1H-pyrazol-1-yl)benzyl)-7-hydroxyisoindolin-1-one (0.20 g) obtained in Reference Example 14 in DMF (2 mL) was added potassium carbonate (0.27 g), and the mixture was stirred under an argon atmosphere at room temperature for 5 min. To the reaction solution was added 3,4,5-trifluorobenzonitrile (0.11 g) in DMF (2 mL), and the mixture was stirred at 90C overnight. The reaction mixture was diluted with water and ethyl acetate. The organic layer was separated, washed with saturated brine, dried over anhydrous sodium sulfate, and concentrated. The residue was purified by NH silica gel chromatography (hexane-ethyl acetate), and solidified with hexane-ethyl acetate to give the title compound (0.014 g). MS: [M+H]+ 443.1 1H NMR (300 MHz, CDCl3) delta 4.29 (2H, s), 4.77 (2H, s), 6.45-6.49 (1H, m), 6.83 (1H, d, J = 8.3 Hz), 7.17 (1H, d, J = 7.5 Hz), 7.34 (2H, d, J = 7.2 Hz), 7.37-7.48 (3H, m), 7.64-7.70 (2H, m), 7.72 (1H, d, J = 1.9 Hz), 7.91 (1H, d, J = 2.3 Hz).

The synthetic route of 134227-45-5 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Takeda Pharmaceutical Company Limited; SUGIMOTO, Takahiro; NAKAMURA, Minoru; SAKAMOTO, Hiroki; SUZUKI, Shinkichi; YAMADA, Masami; KAMATA, Makoto; KOJIMA, Takuto; FUJIMORI, Ikuo; SHIMOKAWA, Kenichiro; EP2921480; (2015); A1;,
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Application of 64829-31-8, A common heterocyclic compound, 64829-31-8, name is 3-Methoxy-4-methylphenylacetonitrile, molecular formula is C10H11NO, 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.

Step A: Preparation of 2-(3-Hydroxy-4-methylphenyl)acetonitrile: To a stirred solution of 2-(3-methoxy-4-methylphenyl)acetonitrite (5 g, 31 mmol) in dry CH2Cl2 (20 ml) was added drop wise BBr3 (1M in CH2Cl2, 10.02 g, 40 mmol) at-78C under argon. The reaction mixture was stirred at the same temperature for 2 hours and then at 0C for 5 hours or until all the starting material is consumed, quenched with ice, extracted with EtOAc (30 ml X 3), the combined organic layer was washed carefully with sat NaHCO3, brine and dried over Na2SO4, filtered, concentrated, and purified by flash chromatography on a silica gel column (hex: methyl acetate 4:1?CH2Cl2: hex 1:1) to give the title compound as an off white solid.

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; Wellstat Therapeutics Corporation; O’NEIL, James, Dennen; SHARMA, Shalini; ARUDCHANDRAN, Ramachandran; EP2282736; (2015); B1;,
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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. 1009-35-4, name is 4-Fluoro-3-nitrobenzonitrile, A new synthetic method of this compound is introduced below., Recommanded Product: 1009-35-4

[0222] To a solution of 4-fluoro-3-nitrobenzonitrile (0.100 g, 0.600 mmol) and l-(2-chloro~6- fluorobenzyl)piperazine (0.102 g, 0.446 mmol) in ACN (1 mL) was added K2CO3 (0.185 g, 1.338 rnmol). The reaction mixture was heated to 80°C for 3 hours and then diluted with water (3 mL). Tlie liquid phase was decanted and tlie solid phase was washed with water and dried in a vacuum oven at 70°C for 4 hours to give the title compound, which was used without further purification.

The synthetic route of 1009-35-4 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; TAKEDA PHARMACEUTICAL COMPANY LIMITED; GREEN, Jason; HOPKINS, Maria; JONES, Benjamin; KIRYANOV, Andre A.; KUEHLER, Jon; MONENSCHEIN, Holger; MURPHY, Sean; NIXEY, Thomas; SUN, Huikai; (300 pag.)WO2018/183145; (2018); A1;,
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Adding a certain compound to certain chemical reactions, such as: 218632-01-0, name is 3-Fluoro-4-nitrobenzonitrile, 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 218632-01-0, name: 3-Fluoro-4-nitrobenzonitrile

Synthesis of 3-((3,4-dimethylphenyl)amino)-4-nitrobenzonitrile To 3,4-dimethylaniline (4.4 g, 35.9 mmol) in THF (100 mL) was added sodium hydride (95% in mineral oil, 1.34 g, 55.8 mmol) and stirred for 1 hour. 3-Fluoro-4-nitrobenzonitrile (5.0 g, 30.1 mmol) was added and the reaction mixture was heated to reflux for 8 hours. Reaction mixture was cooled to room temperature, water was added and filtered through silica gel, washed with 5% THF in hexane and concentrated in vacuo. The crude mixture was purified by flash column chromatography with 5-10% THF in hexane to give 3-((3,4-dimethylphenyl)amino)-4-nitrobenzonitrile (3.4 g, 36% yield) as an orange powder.

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-Fluoro-4-nitrobenzonitrile, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; Universal Display Corporation; KWONG, Raymond; LAM, Sze Kui; LAM, Siu Tung; TSANG, Kit Yee; LEE, Chi Hang; SZIGETHY, Geza; (159 pag.)US2016/218303; (2016); A1;,
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