Copper-catalyzed aminoboration and hydroamination of alkenes with electrophilic amination reagents

Abstract

A copper-catalyzed regioselective, stereospecific, and enantioselective aminoboration reaction of alkenes with bis(pinacolato)diboron and O-acylated hydroxylamines has been developed to deliver the corresponding β-aminoalkylboranes, which can be important building blocks in organic synthesis. In addition, this methodology has been applied to a formal regioselective hydroamination of styrenes by replacement of the diboron reagent with polymethylhydrosiloxane (PMHS). The catalytic asymmetric hydroamination is also possible by using an appropriate chiral biphosphine ligand. © 2014 IUPAC.