Journal of Organometallic Chemistry

gem-Difluoroallyllithium: Preparation by the transmetalation procedure and some reactions

D Seyferth, KR Wursthorn

Index: Seyferth,D.; Wursthorn,K.R. Journal of Organometallic Chemistry, 1979 , vol. 182, p. 455 - 464

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Citation Number: 30

Abstract

Abstract 3, 3-Difluoroallyltrimethyltin has been prepared by the reaction of β-trimethylstannylethylidenetriphenylphosphor... with chlorodifluoromethane. This tin compound reacts with n-butyllithium in tetrahydrofuran at-95 C to generate gem-difluoroallyllithium. The latter, however, is not stable in solution at that temperature. If generated in situ in the presence of a triorganochlorosilane, products of the type R 3 SiCF 2 CH CH 2 are obtained in good yield. Addition to the C O bond of 3- ...

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