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。