作者:Y.M. Saunier、R. Danion-Bougot、D. Danion、R. Carriè
DOI:10.1016/0040-4020(76)80093-2
日期:1976.1
Title olefins are prepared by Wittig reactions between hexafluoroacetone and the methylenephosphoranes Ph3PCHX (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
标题烯烃通过维悌希反应和六氟丙酮之间制备的methylenephosphoranes博士3 PCHX(XCN,CO 2 Me中,COPH)。它们容易与重氮甲烷或苯叠氮反应,得到吡唑啉或三唑啉,它们被光分解为相应的氟环丙烷或氮丙啶。后一种化合物是潜在的偶氮甲亚胺基化物,可与乙炔二甲酸甲酯反应生成吡咯啉(X = CN,CO 2 Me)。当XCOPh时,观察到重排成4-恶唑啉。