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. 22236-10-8, name is 4-(Difluoromethoxy)aniline, This compound has unique chemical properties. The synthetic route is as follows., 22236-10-8
A mixture of 4,6-dichloro-2-(cyclopropylethynyl)-5-fluoropyrimidine (241.0 mg, 1.04 mmol) and 4-difluoromethoxy aniline (707.0 mg, 4.45 mmol) in EtOH (2 mL) was stirred at reflux for 1 hour. After cooling, the mixture was partitioned between ethyl acetate and water. The organic phase was washed with brine, dried over MgS04, then filtered and evaporated. The residual material was separated by silica gel column chromatography (eluting with 1 :20 and 1 : 10 ethyl acetate-hexane) to afford 6-chloro-2-(cyclopropylethynyl)- N-(4-(difluoromethoxy)phenyl)-5-fluoropyrimidin-4-amine (258.0 mg, 70%); MS m/z 354.2 (100) [M+H]+, 356.2 (40).
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Reference:
Patent; PTC THERAPEUTICS, INC.; LEE, Chang-Sun; BAIAZITOV, Ramil; CAO, Liangxian; DAVIS, Thomas, W.; DU, Wu; LIU, Ronggang; MOON, Young-choon; PAGET, Steven, D.; REN, Hongyu; SYDORENKO, Nadiya; WILDE, Richard, Gerald; WO2014/81906; (2014); A2;,
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