Catalyzed Reformatsky Reactions with Ethyl Bromofluoroacetate for the Synthesis of α-Fluoro-β-hydroxy Acids
作者:R. Ocampo、W. R. Dolbier,、K. A. Abboud、F. Zuluaga
DOI:10.1021/jo015778x
日期:2002.1.1
The presence of catalytic amounts of CeCl(3) improves yields and simplifies procedure in the Reformatskyreactions of ethyl bromofluoroacetate with aldehydes and ketones to generate diastereomeric mixtures of alpha-fluoro-beta-hydroxy esters, some of which can be separated by crystallization or column flash chromatography. Diastereomerically pure alpha-fluoro-beta-hydroxy acids are obtained by mild