Convenient Synthesis of 2-Benzazepines via Radical Cyclization
摘要:
Synthesis of 2-benzazepines was readily achieved via 7-endo radical cyclization of N-o-bromobenzylitaconamides or N-o-bromobenzylmethacrylamides which were prepared in two steps from commercially available benzaldehydes, amines, and alpha,beta-unsaturated acids.
Convenient Synthesis of 2-Benzazepines via Radical Cyclization
摘要:
Synthesis of 2-benzazepines was readily achieved via 7-endo radical cyclization of N-o-bromobenzylitaconamides or N-o-bromobenzylmethacrylamides which were prepared in two steps from commercially available benzaldehydes, amines, and alpha,beta-unsaturated acids.
Synthesis of 2-benzazepines was readily achieved via 7-endo radical cyclization of N-o-bromobenzylitaconamides or N-o-bromobenzylmethacrylamides which were prepared in two steps from commercially available benzaldehydes, amines, and alpha,beta-unsaturated acids.
Convenient switching of 7-endo/6-exo radical cyclization
作者:Akio Kamimura、Yohei Taguchi
DOI:10.1016/j.tetlet.2004.01.090
日期:2004.3
7-endo/6-exo Selectivity of radical cyclization to alpha,beta-unsaturated amides was readily controlled by the presence or absence of a temporary substituent, a phenylthio or chlorine group, at the alpha-position of the acceptor. (C) 2004 Elsevier Ltd. All rights reserved.