Enantioselective Diels–Alder reaction of anthrone and maleimide catalyzed by a simple chiral tertiary amine
作者:Jian-Fei Bai、Yun-Long Guo、Lin Peng、Li-Na Jia、Xiao-Ying Xu、Li-Xin Wang
DOI:10.1016/j.tet.2012.11.011
日期:2013.1
Simple chiral tertiary amines with a special imide skeleton were first successfully applied to catalyze the enantioselective D–A reaction of anthrone and maleimides in excellent yields (up to 96%) and enantioselectivities (up to 95% ee).
Simple chiral triethylsilyl-amino alcohol organocatalysts containing a bulky triethylsilyl group on the oxygen atom at the gamma-position were designed and synthesized as new organocatalysts for enantioselective Diels-Alder reactions of anthrones with maleimides to produce chiral hydroanthracene Diels-Alder adducts in up to 99% yield and with up to 94% ee. (c) 2015 Elsevier Ltd. All rights reserved.