Silver-Catalyzed Carboazidation of Arylacrylamides
作者:Xiao-Hong Wei、Ya-Min Li、An-Xi Zhou、Ting-Ting Yang、Shang-Dong Yang
DOI:10.1021/ol402138y
日期:2013.8.16
inexpensive method of nontoxic, silver-salt-catalyzed carboazidation of arylacrylamides to afford corresponding azide oxindoles is reported. This reaction system exhibits great functional group tolerance. All products form a crucial skeleton for the synthesis of various indole alkaloids.
A visible-light-induced oxidativecarboazidation of arylacrylamides by cascade C−N and C−C bond-forming strategy is reported. Various functional groups are tolerated to afford the desired azide oxindoles in 22–86% yields under the standard conditions. Mechanistic studies demonstrate that the reaction proceeded via a radical pathway.