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 phosphorus bidentate 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
将一系列亚甲基桥连磷双齿亲核试剂与 1,2-二氮杂-1,3-二烯进行磷-迈克尔加成,在温和条件下以高产率得到单加合物和双加合物。特别是,从双(二苯基)膦中获得了一系列新的叶立德和对称二叶立德。使用二苯基膦酰氨基衍生物,通过磷酸-迈克尔加成,叶立德中间体受到属于迈克尔供体试剂部分的氨基的自发分子内攻击,从而获得新的杂环。