Asymmetric Synthesis of Pentasubstituted Cyclohexanes through Diphenylprolinol Silyl Ether Mediated Domino Michael/Michael Reaction
作者:Amaechi Shedrack Odoh、Louise Aidanpää、Nariyoshi Umekubo、Hiroaki Matoba、Naoki Mori、Yujiro Hayashi
DOI:10.1002/ejoc.202101106
日期:2021.12.28
β-unsaturated aldehydes and α-acetyl-β-aryl-α,β-unsaturated esters in excellent diastereo- and enantioselectivity. Three continuous stereocenters were controlled by diphenylprolinol silyl ether-mediated domino Michael/Michael reaction, followed by epimerization to thermodynamically favored compound.
由α,β-不饱和醛和α-乙酰基-β-芳基-α,β-不饱和酯以优异的非对映选择性和对映选择性合成五取代环己烷。三个连续立体中心由二苯基脯氨醇甲硅烷基醚介导的多米诺迈克尔/迈克尔反应控制,然后差向异构化为热力学有利的化合物。