Cascade Vinyl Radical Ipso-Cyclization Reactions and the Formation of α,β-Unsaturated-β-aryl-γ-lactams from <i>N</i>-Propargyl Benzamides
作者:Chih-Hao Luo、Pei-Ling Wang、Che-Chien Chang
DOI:10.1021/acs.joc.1c01717
日期:2021.11.5
production of a series of α,β-unsaturated-β-aryl-γ-lactam derivatives. This new type of radical reaction was examined from the substituenteffects on both the amino groups and the aryl groups. A bulky tert-butyl substituent on the amino group enhanced the formation of a Z-conformation of the benzamides and facilitated vinyl radical ipso-cyclization reactions. A synthetic method for preparing α,β-un