New diastereoselective method for constructing a carbon chain by conversion of N,N′-dialkyl-N,N′-diacylhydrazines to threo-1,2-dicarboxylic acid derivatives
作者:Igor V. Magedov、Yuri I. Smushkevich
DOI:10.1039/c39900001686
日期:——
A diastereoselectivemethod is described for constructing a carbonchain by conversion of N,N′-dialkyl-N,N′-diacylhydrazines (1a–f) to dialkyldiamides of threo-1,2-dicarboxylicacids (3a–f).
Anionic 3,4-diaza[3,3]sigmatropic rearrangements of N,N′-diacylhydrazines
作者:Yasuyuki Endo、Koichi Shudo
DOI:10.1016/0040-4039(91)80028-5
日期:1991.1
N,N′-Diacylhydrazines rearrange under basic conditions to afford 1,2-disubstituted succinamides. The rearrangement can be rationalized in terms of [3,3]sigmatropic shifts of biscarboxamide enolates.