摘要

An efficient and high-yielding protocol for the preparation of alpha-keto-1,3,4-oxadiazoles has been developed. Formation of alpha-keto-1,3,4-oxadiazoles involves the 2-iodoxybenzoic acid/tetraethylammonium bromide mediated oxidative cyclization of hydrazide-hydrazones generated in situ from the reaction of aryl glyoxal and hydrazides. This one-pot protocol is reasonably general for the preparation of alpha-keto-1,3,4-oxadiazoles under mild conditions in short reaction times.

  • 出版日期2014-5-16

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