Fluorination with xenon difluoride. Reaction with phenylsubstituted olefins

M Zupan, A Pollak

Index: Zupan,M.; Pollak,A. Journal of Organic Chemistry, 1976 , vol. 41, # 25 p. 4002 - 4004

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Citation Number: 21

Abstract

Xenon difluoride reacts with 1, l-diphenylethylenes in the presence of hydrogen fluoride or trifluoroacetic acid as catalyst to form the corresponding 1, 2-difluoro-l, l-diphenylethanes in nearly quantitative yields. Reaction with l, l-diphenyl-2-fluoroethene in the presence of trifluoroacetic acid results in 1, 2, 2-trifluoro-l, 1-diphenylethane and 2, 2-difluoro-l, l-diphenyl- l-trifluoroacetoxyethane. Reaction with styrenes gives vicinal difluorides in lower yield.