Cesium Fluoride Catalyzed Trifluoromethylation of Esters, Aldehydes, and Ketones with (Trifluoromethyl)trimethylsilane
作者:Rajendra P. Singh、Ganfeng Cao、Robert L. Kirchmeier、Jean'ne M. Shreeve
DOI:10.1021/jo982494c
日期:1999.4.1
low reactivity of carboxylic esters toward (trifluoromethyl)trimethylsilane (TMS-CF(3)) was investigated. A universal cesiumfluoridecatalyzed procedure for nucleophilic trifluoromethylation was developed. At room temperature (25 degrees C), with catalytic amounts of cesiumfluoride, carboxylic esters were found to react to give the silyl ether intermediates, which afforded the trifluoromethyl ketones