Spirolactams by a novel ipso-radical cyclisation and loss of aromaticity
作者:Jean Boivin、Mohammed Yousfi、Samir Z. Zard
DOI:10.1016/s0040-4039(97)01362-2
日期:1997.8
Spirolactams are obtained by ipso radicalcyclisation when various substituted N-benzyl trichloroacetamides are subjected to the nickelpowder/aceticacid reducing system.
Without diazo: The reductive coupling of olefins with dichloro compounds in the presence of a rutheniumcatalyst and magnesium gives cyclopropanes in good yield (see scheme).