Ni-Catalyzed Enantioselective <i>C</i>-Acylation of α-Substituted Lactams
作者:Masaki Hayashi、Shoshana Bachman、Satoshi Hashimoto、Chad C. Eichman、Brian M. Stoltz
DOI:10.1021/jacs.6b02120
日期:2016.7.27
α-quaternary-substituted lactams is reported. Ni-catalyzed three-component coupling of lactam enolates, benzonitriles, and aryl halides produces β-imino lactams that then afford β-keto lactams by acid hydrolysis. Use of a readily available Mandyphos-type ligand and addition of LiBr enable the construction of quaternary stereocenters on α-substituted lactams to form β-keto lactams in up to 94% ee.
This disclosure provides methods for intermolecular enantioselective C-acylation of lactams with quaternary stereogenic centers by applying a chiral Ni catalyst. The methods comprise treating a lactam with a chiral Ni catalyst, an aryl nitrile, and an aryl halide.
This disclosure provides methods for intermolecular enantioselective C-acylation of lactams with quaternary stereogenic centers by applying a chiral Ni catalyst. The methods comprise treating a lactam with a chiral Ni catalyst, an aryl nitrile, and an aryl halide.
[EN] COMPOSITIONS AND METHODS FOR ACYLATING LACTAMS<br/>[FR] COMPOSITIONS ET PROCÉDÉS D'ACYLATION DE LACTAMES
申请人:CALIFORNIA INST OF TECHN
公开号:WO2017156239A1
公开(公告)日:2017-09-14
This disclosure provides methods for intermolecular enantioselective C-acylation of lactams with quaternary stereogenic centers by applying a chiral Ni catalyst. The methods comprise treating a lactam with a chiral Ni catalyst, an aryl nitrile, and an aryl halide.