New synthesis of diphenyl-N-(substituted)ketenimines from diaminophosphonium diazaylides
作者:Henri-Jean Cristau、Isabelle Jouanin、Marc Taillefer
DOI:10.1016/s0022-328x(99)00094-7
日期:1999.7
Diaminophosphonium diazaylides 2 react under mild conditions with diphenylacetyl chloride, to afford diphenyl-N-(substituted)ketenimines 4 or, depending on the case, their transformation products: either the tautomer 8, or the dimer 9. The general reaction seems to proceed firstly via an elimination step on the acid chloride followed then by an aza-Wittig reaction between the resulting ketene 7 and
二氨基phosph重氮2在温和的条件下与二苯基乙酰氯反应,得到二苯基-N-(取代的)酮亚胺4或视情况而定的转化产物:互变异构体8或二聚体9。一般的反应似乎首先是通过在酰氯上的消除步骤进行的,然后是所得的烯酮7和二氨基phosph单氮杂between化物6之间的aza-Wittig反应。