期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 67, 期 1, 页码 72-78出版社
AMER CHEMICAL SOC
DOI: 10.1021/jo015778x
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The presence of catalytic amounts of CeCl3 improves yields and simplifies procedure in the Reformatsky reactions 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 alkaline hydrolysis of the resolved alpha-fluoro-beta-hydroxy esters. Detailed NMR data of new alpha-fluoro-beta-hydroxy esters and alpha-fluoro-beta-hydroxy acids are also presented.
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