Conversions of hydrazones to diazo compounds by n-butyllithium and azidotris(diethylamino)phosphonium bromide
作者:Mark McGuiness、Harold Shechter
DOI:10.1016/s0040-4039(02)01443-0
日期:2002.11
Lithium hydrazonides, prepared by reactions of hydrazones with n-BuLi/hexane in THF at −78°C, are converted by azidotris(diethylamino)phosphonium bromide in THF at ∼0°C efficiently, rapidly, and safely to their corresponding diazo compounds along with tris(diethylamino)phosphorimine, nitrogen, and lithium bromide.