Cu‐Catalyzed Coupling of Aliphatic Amines with Alkylboronic Esters
作者:Francesca M. Dennis、Antonio Romero Arenas、George Rodgers、Muralidharan Shanmugam、Jonathan A. Andrews、Samantha L. Peralta‐Arriaga、Benjamin M. Partridge
DOI:10.1002/chem.202303636
日期:2024.4.2
We report the Cu-catalysed coupling of alkylboronic esters and aliphaticamines. This mild method is functional group tolerant, and uses O2 from air as the terminal oxidant. Investigation into the mechanism suggest that the boronic ester reacts with an aminyl radical, formed in situ, to generate an alkyl radical intermediate.
Playing Reversi with H and N: A copper‐catalyzed intermolecularregioselectivehydroamination of styrenes with polymethylhydrosiloxane and hydroxylamine derivatives has been developed. The catalysis accommodates challenging β‐substituted substrates. Moreover, the chiral biphosphine‐ligated copper complex successfully forms benzylamines with good enantiomeric ratios.