1,2-Acyl group migration in the oxidative free radical reaction of 2-substituted-1,4-quinones
作者:An.-I. Tsai、Che-Ping Chuang
DOI:10.1016/j.tet.2008.03.054
日期:2008.5
Oxidative free radical reactions of 2-substituted-1,4-quinone derivatives are described. Electrophilic carbon-centered radical produced by the manganese(III) acetateoxidation of α-chloro-β-ketoester undergoes efficient addition to the C–C double bond of 5,6-dimethyl-2-(methylamino)-1,4-benzoquinone, and this reaction provides a novel method for the synthesis of spirolactam 3 and indole-2,4,7-trione