Ligand-free Cu(<scp>ii</scp>)-mediated aerobic oxidations of aldehyde hydrazones leading to N,N′-diacylhydrazines and 1,3,4-oxadiazoles
作者:Lei Liu、Suliu Feng
DOI:10.1039/c7ob00042a
日期:——
A Cu(II)-mediated synthesis of N,N′-diacylhydrazines and 1,3,4-oxadiazoles from aldehyde hydrazones has been developed. This is the first time that the synthesis of N,N′-diacylhydrazines and 1,3,4-oxadiazoles using N,N-dimethylamides as the acylation reagent and O2 in air as the oxidation reagent is reported. These reactions offered several advantages including simple workups, ligand-free inexpensive
已开发了一种由Cu(II)介导的从醛中合成N,N'-二酰基肼和1,3,4-恶二唑的方法。这是第一次发现的合成Ñ,Ñ使用'-diacylhydrazines和1,3,4-恶二唑Ñ,Ñ -dimethylamides,作为酰化试剂和O 2在空气作为氧化试剂的报道。这些反应提供了几个优点,包括简单的后处理,无配体的廉价金属盐作为介体,高收率和广泛的底物范围。