Stereochemistry modulates the catalytic hydrogenolysis of nitrile-substituted cyclopropanes
作者:Daphne E. González-Juárez、J. Benjamín García-Vázquez、Violeta Zúñiga-García、Joel J. Trujillo-Serrato、Oscar R. Suárez-Castillo、Pedro Joseph-Nathan、Martha S. Morales-Ríos
DOI:10.1016/j.tet.2012.06.025
日期:2012.9
The study of Raney-Ni catalyzed chemo- and regioselective hydrogenolysis of diastereomeric nitrile-substituted spirocyclopropyloxindoles is presented. The chemoselectivity outcome of the reaction is remarkably influenced by the relative stereochemistry of the nitrile-substituted spirocyclopropyloxindoles. Chemo- and high regioselective cyclopropane ring-opening occurs from the syn diastereomers to