Intramolecular addition of benzylic radicals onto ketenimines. Synthesis of 2-alkylindoles
作者:Mateo Alajarín、Angel Vidal、María-Mar Ortín
DOI:10.1039/b310593h
日期:——
The inter- and intramolecularaddition of free radicals onto ketenimines is studied. All the attempts to add intermolecularly several silicon, oxygen or carbon centered radicals to N-(4-methylphenyl)-C,C-diphenyl ketenimine were unsuccessful. In contrast, the intramolecularaddition of benzylic radicals, generated from xanthates, onto the central carbon of a ketenimine function with its N atom linked
First radical addition onto ketenimines: a novel synthesis of indoles
作者:Mateo Alajarin、Angel Vidal、Maria-Mar Ortin
DOI:10.1016/s0040-4039(03)00562-8
日期:2003.4
A novel radical-mediated synthesis of 2-alkyl indoles is described. The method is a nonchain process based on the intramolecular addition of benzylic radicals onto the central carbon atom of a ketenimine function, resulting in a 5-exo-dig cyclization.