Transition-Metal-Free Synthesis of <i>N</i>
-Hydroxy Oxindoles by an Aza-Nazarov-Type Reaction Involving Azaoxyallyl Cations
作者:Wenzhi Ji、Yahu A. Liu、Xuebin Liao
DOI:10.1002/anie.201607177
日期:2016.10.10
transition‐metal‐free method to construct N‐hydroxy oxindoles by an aza‐Nazarov‐type reactioninvolvingazaoxyallylcation intermediates is described. A variety of functional groups were tolerated under the weak basic reaction conditions and at room temperature. A one‐pot process was also developed to make the reaction even more practical. This method provides alternative access to oxindoles and their biologically active