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. 117284-59-0, name is 2-(2,2-Difluorocyclopropyl)ethanol. This compound has unique chemical properties. The synthetic route is as follows. SDS of cas: 117284-59-0
Methanesulfonyl chloride (1.35 mL) was added to a solution of 2- (2 , 2-difluorocyclopropyl) ethanol (1.42 g) and triethylamine (3.24 mL) in THF (20 mL) dropwise at 0 C. The mixture was stirred at room temperature overnight. Water was added, and the mixture was extracted with ethyl acetate. The organic layer was washed with brine, dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The residue was purified by silica gel column chromatography(hexane/ethyl acetate) to give the title compound (1.31 g) as a pale yellow oil.XH NMR (300 MHz, DMSO-d6) delta 1.17-1.30 (1H, m) , 1.44-1.98 (4H, m) , 3.19 (3H,. s) , 4.16-4.36 (2H, m)
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Reference:
Patent; TAKEDA PHARMACEUTICAL COMPANY LIMITED; YASUMA, Tsuneo; KAMATA, Makoto; YAMASHITA, Tohru; HIROSE, Hideki; MURAKAMI, Masataka; KINA, Asato; YONEMORI, Kazuko; MIZOJIRI, Ryo; FUJIMORI, Ikuo; FUJIMOTO, Takuya; IKEDA, Zenichi; WO2012/74126; (2012); A1;,
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