Palladium-Catalyzed Decarboxylative Generation and Asymmetric Allylation of α-Imino Anions
作者:Xiaoyan Qian、Pengfei Ji、Chang He、Jean-Olivier Zirimwabagabo、Michelle M. Archibald、Andrew A. Yeagley、Jason J. Chruma
DOI:10.1021/ol502693r
日期:2014.10.3
A palladium-catalyzedasymmetricdecarboxylativeallylicalkylation of allyl 2,2-diphenylglycinate imines using (S,S)-f-binaphane as a chiral supporting ligand has been developed. This transformation allows for decarboxylative generation and enantioselective allylation of nonenolate α-imino (2-azaallyl anions) to afford α-aryl homoallylic imines.
Nickel-Catalyzed Decarboxylative Generation and Asymmetric Allylation of 2-Azaallyl Anions
作者:Chenlu Liu、Changfeng Deng、Han Yang、Xiaoyan Qian、Shaojian Tang、Michal Poznik、Jason J. Chruma
DOI:10.1021/acs.joc.9b01293
日期:2019.8.16
The first nickel-catalyzed asymmetric decarboxylative allylation (DcA) of allyl 2,2-diarylglycinate imines is reported. This transformation utilizes a chiral ferrocenyl bidentate ligand and a Ni(0) precatalyst to mediate the decarboxylative generation and asymmetric allylation of 2-azaallyl anions, affording α-aryl homoallylic imines in modest-to-high yields and moderate-to-high enantiomeric ratios