A highly bifunctional thiourea-tertiary amine-catalyzed enantioselective Michael addition reaction of anthrone to a wide variety of nitroalkenes has been developed, and the corresponding adducts were obtained smoothly in high yields (up to 97%) and good enantioselectivities (up to 94% ee). Crown Copyright (C) 2009 Published by Elsevier Ltd. All rights reserved.
A highly efficient asymmetric Michael addition of anthrone to nitroalkenes with cinchona organocatalysts
作者:Min Shi、Zhi-Yu Lei、Mei-Xin Zhao、Jing-Wen Shi
DOI:10.1016/j.tetlet.2007.06.107
日期:2007.8
A highly efficient asymmetric Michael addition of anthrone to nitroalkenes catalyzed by cinchona alkaloids was described. Up to 99% ee of the corresponding adduct was obtained.