Diastereoselective Copper-Mediated Conjugate Addition of Functionalized Magnesiates for the Preparation of Bisaryl Nrf2 Activators
作者:Michal P. Glogowski、Jay M. Matthews、Brian G. Lawhorn、Kevin P. C. Minbiole
DOI:10.1021/acs.joc.0c02639
日期:2021.2.19
A two-step metal–halogen exchange and diastereoselective copper-mediated Michael addition onto a complex α,β-unsaturated system has been developed and applied toward the synthesis of bisaryl Nrf2 activators. Optimization of metal–halogen exchange using (n-Bu)3MgLi allowed for the preparation of custom aryl-functionalized magnesiate reagents at noncryogenic temperatures. Following transmetalation, these