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.
Metal-Free Radical Azidoarylation of Alkenes: Rapid Access to Oxindoles by Cascade CN and CC Bond-Forming Reactions
作者:Kiran Matcha、Rishikesh Narayan、Andrey P. Antonchick
DOI:10.1002/anie.201303550
日期:2013.7.29
A novel method for the oxidative radical azidation of alkenes relies on an azide in combination with a hypervalent iodine reagent. A cascade of CN and CC bond‐forming reactions yields 2‐oxindoles under metal‐free conditions with high reaction rates at ambient temperature and provides access to complex products (see scheme; TMS=trimethylsilyl).