Trimethylsilyl chloride assisted conjugate addition-elimination of organocopper reagents to 2-bis(methylthio)nitroethylene: An efficient and highly stereoselective synthesis of 2-methylthio-2-alkyl/aryl-1-nitroethylenes and their application for synthesis of nitroheterocycles
作者:Nobin Terang、Barun K Mehta、H Ila、H Junjappa
DOI:10.1016/s0040-4020(98)00790-x
日期:1998.10
An efficient method for the synthesis of novel 2-methylthio-2-alkyl/aryl-1-nitroethylenes 2 has been developed via conjugate addition-elimination of organocopper reagents to nitroketene dithioacetal 1 in the presence of TMSCl. The product nitroethylenes 2 have been further utilized for the synthesis of substituted 3-nitro-2-alkyl/arylpyrroles 5 by their reaction with aminoacetaldehyde dimethylacetal
Dithio- und Thionester, 26. Mitt. Methylthio-dithioessigester
作者:Klaus Hartke、Josef Quante
DOI:10.1002/ardp.19803131210
日期:——
Die Methylthio‐dithioessigsäure‐methylester 2 und 3 sind aus den zugehörigen Nitrilen erhältlich. Ihre Chlorierung, Oxidation und Methylierung werden beschrieben.