Regioselectivity in forming dipole-stabilized anions. Sites of metalation of indolines, tetrahydroquinolines, and benzazepines activated by N-formimidoyl or N-Boc groups
作者:A. I. Meyers、Guy Milot
DOI:10.1021/jo00076a003
日期:1993.11
Metalation of the title compounds indicated that the formamidine-equipped indolines or 1,2,3,4-tetrahydroquinolines give rise solely to C-2 alkylation products (5,6) whereas the corresponding N-t-Boc systems give only ortho aryl alkylation (7, 8).