Hétérocycles fluorés—I: Addition du diazométhane et du phenylazide au bis (trifluorométhyle)-3, 3 acrylate de méthyle et a ses dérivés. Obtention de cyclopropanes et …

YM Saunier, R Danion-Bougot, D Danion, R Carrie

Index: Saunier,Y.M. et al. Tetrahedron, 1976 , vol. 32, p. 1995 - 1999

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Citation Number: 17

Abstract

Title olefins are prepared by Wittig reactions between hexafluoroacetone and the methylenephosphoranes Ph3P CHX (X CN, CO2Me, COPh). They react readily with diazomethane or phenylazide affording pyrazolines or triazolines which are photodecomposed into the corresponding fluorocyclopropanes or aziridines. The latter compounds are potential azomethine ylides and react with methyl acetylene dicarboxylate ...