Category: 1017779-69-9

Reference of 1017779-69-9, A common heterocyclic compound, 1017779-69-9, name is 3-Fluoro-4-(trifluoromethoxy)aniline, molecular formula is C7H5F4NO, 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.

Example 14 N-(3-fluoro-4-(trifluoromethoxy)phenyl)-2-(imidazo[1,2-a]pyridin-5-yl)acetamide (0292) To a mixture of 3-fluoro-4-(trifluoromethoxy)aniline (66 mg), 2-(imidazo[1,2-a]pyridin-5-yl)acetic acid (50 mg) and anhydrous DMF (1 mL) were added HATU (160 mg) and DIPEA (0.074 mL) at room temperature, and the mixture was stirred at room temperature for 3 days. The reaction mixture was diluted with saturated aqueous sodium hydrogen carbonate solution, and extracted with ethyl acetate. The extract was washed with water and saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure and the obtained residue was purified by silica gel column chromatography (NH, ethyl acetate/methanol) and recrystallized from ethyl acetate-hexane to give the title compound (63 mg). 1H NMR (300 MHz, CDCl3) delta3.98 (2H, s), 6.82 (1H, d, J = 6.8 Hz), 7.08-7.24 (3H, m), 7.52 (1H, s), 7.58 (1H, d, J = 9.0 Hz), 7.61-7.74 (2H, m), 8.12 (1H, brs)

The synthetic route of 1017779-69-9 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Takeda Pharmaceutical Company Limited; KIMURA, Eiji; MIYANOHANA, Yuhei; OGINO, Masaki; TANAKA, Yuta; FUSHIMI, Makoto; OKAWA, Tomohiro; HANYA, Yuki; KOIKE, Tatsuki; (67 pag.)EP3239150; (2017); A1;,
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

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. 1017779-69-9, name is 3-Fluoro-4-(trifluoromethoxy)aniline, A new synthetic method of this compound is introduced below., HPLC of Formula: C7H5F4NO

[0202j meta-Fluoro-4-(trifluoromethoxy)aniline (500 mg, 2.56 mmol) and triethylamine (388 mg, 3.84 mmol) were dissolved in CH2C12 (4 mL) and was added dropwisely into a solution of triphosgene (341 mg, 1.15 mmol) dissolved in CH2C12 (5 mL) at -78 C. The reaction mixture was stirred at 0 C for lh and was then cooled to -78 C. 4-amino-1-Boc- piperidine (769 mg, 3.84 mmol) and triethylamine (388 mg, 3.84 mmol) were dissolved in CH2C12 (4 mL) and the suspension was added dropwisely to the reaction mixture at -78 C. The reaction mixture was stirred at rt for 2h. The reaction was quenched by addition of water. The organic layer was isolated and the organic layer was further washed by HC1 solution (1M) for 4 times. The organic layer was dried over anhydrous magnesium sulfate and concentrated in vacuo yielding final crude product (1.05 g, 86% pure, 2.13 mmol, 83.4% yield). The impurities 38 were purified by column chromatography using EtOAc:Hex (1:1).[0203j ?H NMR (d6-DMSO, 300 Mhz): A: 8.77 (s, 1H), 7.66 (dd, J 13.5, 2.4 Hz, 1H), 7.38 (t, J 8.1 Hz, 1H), 7.10 (d, J 9Hz, 1H), 6.33 (d, J 7.5 Hz, 1H), 3.81 (d, J= 12.9 Hz, 2H), 3.6-3.8 (m, 1H), 2.8-3.0 (m, 2H), 1.78 (dd,J= 12.3Hz, 3.3Hz, 2H), 1.40 (s, 9H), 1.2-1.4 (m, 2H); 38: 9.28 (s, 1H), 7.69 (dd, J= 14.9, 2.4 Hz, 1H), 7.46 (t, J 9Hz, 1H), 7.2-7.3 (m, 1H)

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; EICOSIS, LLC; HAMMOCK, Bruce, D.; LEE, Kin, Sing, Stephen; INCEOGLU, Ahmet, Bora; WO2015/148954; (2015); A1;,
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Application of 1017779-69-9, A common heterocyclic compound, 1017779-69-9, name is 3-Fluoro-4-(trifluoromethoxy)aniline, molecular formula is C7H5F4NO, 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.

[0094] (a) In a 20 mL vial was added 3-fluoro-4-trifluoromethoxyaniline (150 mg, 0.769 mmol) in acetic acid (0.5 mL) at room temperature. Bromine (118 , 2.30 mmol, 3 eq.) was added and the reaction was stirred for several hours. Dichloromethane (2 mL) was added to break up the solidified reaction mixture, followed by more bromine (40 , 0.781 mmol, 1 eq.) addition. After stirring for another hour, dichloromethane was removed by gently blowing a stream of nitrogen to the reaction mixture. The solid was filtered and washed thoroughly with water and then dried under vacuum to give 2, 6-dibromo-3-fluoro-4- trifluoromethoxyaniline as a white solid (172 mg, 0.489 mmol, 64% yield).

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; CHEMOCENTRYX, INC.; DAIRAGHI, Daniel; DRAGOLI, Dean, R.; KALISIAK, Jarek; LANGE, Christopher, W.; LELETI, Manmohan, Reddy; LI, Yandong; LUI, Rebecca, M.; MALI, Venkat, Reddy; MALATHONG, Viengkham; POWERS, Jay, P.; TANAKA, Hiroko; TAN, Joanne; WALTERS, Matthew, J.; YANG, Ju; ZHANG, Penglie; WO2015/84842; (2015); A1;,
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Adding a certain compound to certain chemical reactions, such as: 1017779-69-9, name is 3-Fluoro-4-(trifluoromethoxy)aniline, belongs to ethers-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 1017779-69-9, HPLC of Formula: C7H5F4NO

[0193j Step 1[0194j Corresponding amine (1 equiv.) and triethylamine (1.5 equiv.) was dissolved in CH2C12 (54 mM corresponding to amine) and stirred at -78 C. Triphosgene (0.45 equiv.) dissolved in CH2C12 (20 mM, corresponding triphosgene) was added dropwise at -78 C. The reaction was then warm to rt and was stirred for 30 mm. The reaction was cooled to 0 C. Corresponding piperidine (1.5 equiv.) and triethylamine (1.5 equiv.) dissolved in CH2C12 (54 mM, corresponding piperidine) was added slowly and the reaction was further stirred at rt for 12 h. The reaction was quenched with the addition of HC1 solution (2M). The organic layer was collected and the aqueous layer was further extracted with EtOAc (EtOAc: Aqueous layer 1:1) for three times. The combined organic layer was washed with sat. NaC1 solution. The organic layer was dried over anhydrous magnesium sulfate and was concentrated in vacuo. The product was used without further purification.[0277j The reaction was carried out according to synthetic pathway 2. The 3-fluoro-4- (trifluoromethoxy)aniline (109 mg, 559 jimol) was reacted with 1-(4-aminopiperidin-1-yl)-2- methylpropan-1-one (143 mg, 838 jimol). The product was purified by flash chromatography using ethyl acetate :hexane (7:3). The product was further purified by recrystallization using methanol and water.[0278j Yield: 150 mg, 383 jimol, 68.6% yield. Purity (H-NMR): 95%

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 3-Fluoro-4-(trifluoromethoxy)aniline, and friends who are interested can also refer to it.

Reference:
Patent; EICOSIS, LLC; HAMMOCK, Bruce, D.; LEE, Kin, Sing, Stephen; INCEOGLU, Ahmet, Bora; WO2015/148954; (2015); A1;,
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Application of 1017779-69-9, 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. 1017779-69-9 name is 3-Fluoro-4-(trifluoromethoxy)aniline, 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.

Example 120 6-(5,6-difluoro-2-methyl-lH-benzimidazol-l-yl)-N-[3-fluoro-4- ) To a mixture of l-(6-chloropyrazin-2-yl)-5,6-difluoro-2-methyl-lH-benzo[d]imidazole (140 mg, 0.5 mmol) in DME was added K3P04 (360 mg, 0.85 mmol), Pd2dba3 (23 mg, 0.0125 mmol) and X-Phos (24 mg, 0.025 mmol). The reaction mixture was stirred at 100 C for 4 hours, then cooled to room temperature. The product was filtered and washed with DME, then dried under reduced pressure to give the title compound as a white solid (195 mg, 92%). ]H NMR (500 MHz, DMSO-i) delta 10.37 (br. s., 1 H), 8.40 (d, 7=2.52 Hz, 2 H), 7.91 (dd, 7=13.24, 2.52 Hz, 1 H), 7.66 – 7.81 (m, 2 H), 7.52 (t, 7=8.67 Hz, 1 H), 7.44 (dt, 7=8.99, 1.34 Hz, 1 H), 2.58 – 2.70 (S, 3 H); MS m/z 440.4 (ESI) [M+H]+.

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 3-Fluoro-4-(trifluoromethoxy)aniline, and friends who are interested can also refer to it.

Reference:
Patent; PTC THERAPEUTICS, INC.; BAIAZITOV, Ramil; CHOI, Soongyu; DU, Wu; HWANG, Seongwoo; LEE, Chang-Sun; LIU, Ronggang; MOON, Young-Choon; PAGET, Steven, D.; REN, Hongyu; SYDORENKO, Nadiya; WILDE, Richard, Gerald; WO2015/76800; (2015); A1;,
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Reference of 1017779-69-9, A common heterocyclic compound, 1017779-69-9, name is 3-Fluoro-4-(trifluoromethoxy)aniline, molecular formula is C7H5F4NO, 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.

A solution of 3-fluoro-4-(trifluoromethoxy)aniline [CAS 101 7779-69-9] (32.0 g, 164 mmol) in CH3CN (600 mL) was stirred on an ice-bath. N-iodo-succinimide (40.59 g, 180.4 mmol) was added and the reaction mixture was allowed to slowly reachroom temperature while stirring overnight. The solvent was concentrated under reduced pressure. Water was added and the product was extracted with EtOAc (2x 300 mL). The combined organic layers were washed with and an aqueous solution of Na2S2O3 (500 mL), brine (500 mL), dried over MgSO4, filtered, and concentrated under reduced pressure. The residue was purified by columnchromatography on silica gel (eluent: petroleum ether/EtOAc gradient 50/1 to30/1). The desired fractions were combined and evaporated under reduced pressure to provide 5-fluoro-2-iodo-4-(trifluoromethoxy)aniline 7a (45 g).

The synthetic route of 1017779-69-9 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; JANSSEN PHARMACEUTICALS, INC.; KATHOLIEKE UNIVERSITEIT LEUVEN; BARDIOT, Dorothee Alice Marie-Eve; BONFANTI, Jean-Francois; KESTELEYN, Bart Rudolf Romanie; MARCHAND, Arnaud Didier M; RABOISSON, Pierre Jean-Marie Bernard; (91 pag.)WO2017/167950; (2017); A1;,
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem