Tetrahedron

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

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

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被引用次数: 17

摘要

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 ...