Synthesis, proton and 13C NMR and reaction mechanism studies of novel isoindolones derivatives, obtained through TAWERS procedure
作者:David Corona、Eduardo Díaz、Ángel Guzmán、Christophe K. Jankowski
DOI:10.1016/j.saa.2004.10.025
日期:2005.9
isoindolone derivatives (13-18) were prepared in goods yields by applying the TAWERS methodology. A general approach for formation of isoindolones from the aza-Wittig reaction of iminophosphoranes with dialdehydes under neutral and mild conditions was realized. Using 1D NMR a [1,3]-hydride migration was detected. The assignment of the structures and conformation behavior of the derivatives was achieved
通过使用TAWERS方法,以商品收率制备了一系列新型的异吲哚酮衍生物(13-18)。实现了在中性和温和条件下由亚氨基正膦与二醛的氮杂-维蒂希反应形成异吲哚酮的一般方法。使用1D NMR检测到[1,3]-氢化物迁移。使用1D和2D NMR(NOESY,DEPT,HMQC和HMBC)实现了衍生物的结构和构象行为的分配。