Journal of Fluorine Chemistry

Difluoromethylene exchange in the preparation of fluorinated bis-phosphonates

DJ Burton, T Ishihara, RM Flynn

文献索引：Burton,D.J.; Ishihara,T. Journal of Fluorine Chemistry, 1982 , vol. 20, p. 121

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被引用次数: 12

摘要

Abstract The application of the Michaelis-Becker variation to the preparation of unsymmetrical F-methylene bis-phosphonates gives a mixture of both symmetrical and unsymmetrical bis-phosphonates. The reaction is best explained by dissociation of the intermediate F-methylene phosphonate ylide and carbene scrambling among the potential dialkyl phosphite anions.