Intramolecular trapping of a phosphazide by an imine: Formation of 2,3-diamino-2H-indazole derivatives from o-azidobenzaldimines and tertiary phosphines
作者:Pedro Molina、Antonio Arques、María Victoria Vinader
DOI:10.1016/s0040-4039(01)93353-2
日期:——
Treatment of o-azidobenzaldimines with tertiary phosphines in dichloromethane at 0°C gave the corresponding 2,3-diamino-2H-indazole derivatives in good yields via the Staudinger reaction followed by cyclization of the intermediate phosphazide.
在0℃下用叔膦在二氯甲烷中处理邻叠氮苯二胺,以良好的收率通过Staudinger反应得到相应的2,3-二氨基-2H-吲唑衍生物,然后环化中间体磷叠氮化物。