Studies toward Nitrogen-Containing Natural Products Using Radical Cyclizations of Chiral Vinylogous Amides
作者:Martin Cordes、Dagmar Franke
DOI:10.1055/s-2004-830859
日期:——
The radical-promoted cyclization of various chiral vinylogous amides to annulated azepines and to an azaspirocycle is presented. A relatively rare 7-endo cyclization process generated octahydrocyclopenta[b]azepines in fair yield and excellent stereoselectivity at the same time.
本文介绍了多种手性乙烯类似胺在自由基促进下的环化反应,生成含氮七元环和氮杂螺环产物。该反应采用相对罕见的7-内型环化过程,以较好产率和优异立体选择性同时合成了八氢环戊并[b]氮卓类化合物。