Synthesis of Chiral Polycyclic Tetrahydrocarbazoles by Enantioselective Aminocatalytic Double Activation of 2-Hydroxycinnamaldehydes with Dienals
作者:Yong-Chao Ming、Xue-Jiao Lv、Ming Liu、Yan-Kai Liu
DOI:10.1021/acs.orglett.1c02309
日期:2021.8.20
An efficient aminocatalytic enantioselective double-activation strategy has been developed that combines several different aminocatalytic modes in a cascade process, such as iminium ion, vinylogous iminium ion, trienamine, and dienamine activations. By using this strategy, 2-hydroxycinnamaldehydes worked well with various dienals via [4 + 2] cycloaddition and the oxa-Michael reaction-initiated cascade
已经开发了一种有效的氨基催化对映选择性双活化策略,它在级联过程中结合了几种不同的氨基催化模式,例如亚胺离子、乙烯基亚胺离子、三烯胺和二烯胺活化。通过使用这种策略,2-羟基肉桂醛分别通过 [4 + 2] 环加成和 oxa-Michael 反应引发的级联与各种二烯很好地配合,从而产生具有优异非对映选择性和对映选择性的手性多环四氢咔唑和色满衍生物。