Radical cyclisation onto imidazoles and benzimidazoles
摘要:
A new protocol for the synthesis of [1, 2-a]-fused benzimidazoles and imidazoles has been developed using intramolecular homolytic aromatic substitution via omega-alkyl radicals generated from 1-(omega-benzeneselenylalkyl)- 2-(benzenesulfenyl)-benzimidazoles and -2-(p-toluenesulfonyl)imidozoles. (C) 1997 Elsevier Science Ltd.
Radical cyclisation onto imidazoles and benzimidazoles
摘要:
A new protocol for the synthesis of [1, 2-a]-fused benzimidazoles and imidazoles has been developed using intramolecular homolytic aromatic substitution via omega-alkyl radicals generated from 1-(omega-benzeneselenylalkyl)- 2-(benzenesulfenyl)-benzimidazoles and -2-(p-toluenesulfonyl)imidozoles. (C) 1997 Elsevier Science Ltd.