Phospha-Michael-Type Reactions between 1,2-Diaza-1,3-dienes and Bidentate Nucleophiles: Formation of New Mono- and Diylides and their Elaboration to Heterocycles
作者:Carla Boga、Nicola Zanna、Orazio A. Attanasi、Graziano Baccolini、Lucia De Crescentini、Luciano Forlani、Fabio Mantellini、Simona Nicolini、Gabriele Micheletti、Silvia Tozzi
DOI:10.1002/ejoc.201001453
日期:2011.3
methylene-bridged phosphorusbidentate nucleophiles to 1,2-diaza-1,3-dienes gave monoadducts and bisadducts in high yields under mild conditions. In particular, a series of new ylides and symmetrical diylides have been obtained from bis(diphenyl)phosphanes. The use of diphenylphosphanylamino derivatives gave, through phospha-Michael addition, ylide intermediates that underwent spontaneous intramolecular attack