Catalytic Asymmetric Diels-Alder Reaction of Quinone Imine Ketals: A Site-Divergent Approach
作者:Takuya Hashimoto、Hiroki Nakatsu、Keiji Maruoka
DOI:10.1002/anie.201410957
日期:2015.4.7
The catalytic asymmetric Diels–Alder reaction of quinone imine ketals with diene carbamates catalyzed by axially chiral dicarboxylic acids is reported herein. A variety of primary and secondary alkyl‐substituted quinone derivatives which have not been applied in previous asymmetric quinone Diels–Alder reactions could be employed using this method. More importantly, we succeeded in developing a strategy
本文报道了醌亚胺缩酮与轴向手性二元羧酸催化的二烯氨基甲酸酯的催化不对称Diels-Alder反应。使用此方法,可以使用以前在不对称醌Diels–Alder反应中未应用的各种伯和仲烷基取代的醌衍生物。更重要的是,我们成功地开发了一种策略,可将不对称的3烷基醌亚胺缩酮中的反应位点从固有的未取代的CC键转移至不利的烷基取代的CC键。