申请人:Prakash G.K. Surya
公开号:US20140066640A1
公开(公告)日:2014-03-06
A direct trifluoromethylation method preferably using a trifluoromethane as a fluoro-methylating species. In particular, the present method is used for preparing a trifluoromethylated substrate by reacting a fluoromethylatable substrate with a trifiuoromethylating agent in the presence of an alkoxide or metal salt of silazane under conditions sufficient to trifluoromethylate the substrate; wherein the fluoromethylatable substrate includes chlorosilanes, carbonyl compounds such as esters, aryl halides, aldehydes, ketones, chalcones, alkyl formates, alkyl halides, aryl halides, alkyl borates, carbon dioxide or sulfur.
一种直接三氟甲基化方法,优选使用三氟甲烷作为氟甲基化试剂。具体来说,本方法用于通过在碱性或硅氮烷的金属盐存在下,将可氟甲基化底物与三氟甲基化试剂反应以制备三氟甲基化底物;其中可氟甲基化底物包括氯硅烷、酯类羰基化合物、芳基卤化物、醛、酮、查尔酮、烷基甲酸酯、烷基卤化物、芳基卤化物、烷基硼酸酯、二氧化碳或硫。