Enantioselective CuH-Catalyzed Anti-Markovnikov Hydroamination of 1,1-Disubstituted Alkenes
作者:Shaolin Zhu、Stephen L. Buchwald
DOI:10.1021/ja509786v
日期:2014.11.12
Enantioselective synthesis of β-chiral amines has been achieved viacopper-catalyzedhydroamination of 1,1-disubstituted alkenes with hydroxylamine esters in the presence of a hydrosilane. This mild process affords a range of structurally diverse β-chiral amines, including β-deuterated amines, in excellent yields with high enantioselectivities. Furthermore, catalyst loading as low as 0.4 mol% could
The enantioselective hydrocarbamoylation of alkenes enabled by copper hydride and palladium cooperative catalysis was developed. Utilizing readily available carbamoyl chlorides, this method can be applied to various types of olefins, including alkenyl arenes, terminal alkenes, and 1,1-disubstituted alkenes, providing α- and β-chiral amides in good yields with excellent levels of enantioselectivity