Reaction of N-acylhydrazones with benzyloxyacetyl chloride in the presence of i-Pr2EtN affords new 1,3,4-oxadiazolines in excellent yields (72-95%), under mild reaction conditions and in short reaction times. The structures of the products were confirmed by single-crystal X-ray diffractometry. A plausible reaction mechanism is proposed.
在 i-Pr2EtN 存在下,N-酰基肼与苄氧基乙酰氯反应生成了新的 1,3,4-噁二唑啉类化合物,收率极高(72-95%),反应条件温和,反应时间短。单晶 X 射线衍射仪证实了产物的结构。提出了一种合理的反应机制。