α-氧代烯酮环二硫代缩酮化学——α,α-二氧代烯酮环二硫代缩酮与乙二胺反应

α Oxoketene Cyclic S,S acetals Chemistry ——Reaction of α,α Dioxo(ester)ketene Cyclic S,S acetals with Ethylenediamine

由α，α－二氧代烯酮环二硫代缩酮与乙二胺反应制得五种α，α－二氧代烯酮环二氮代缩酮化合物，所有产物均经元素分析、ＩＲ、１ＨＮＭＲ和１３ＣＮＭＲ确证。

Five of α,α dioxo(ester)ketene cyclic N,N acetals (2) have been synthesized from α,α dioxo(ester)ketene cyclic S,S acetals (1) and ethylenediamine.This process provides a new method for the synthesis of (2) in good yield under mild condition.All products are confirmed with elemental analysis,IR, 1H NMR and 13 C NMR.