Copper-Catalyzed Regio- and Enantioselective Aminoboration of Unactivated Terminal Alkenes
作者:Kodai Kato、Koji Hirano、Masahiro Miura
DOI:10.1002/chem.201801070
日期:2018.4.17
A CuCl/(R,R)‐PTBP‐BDPP‐catalyzedregioselective and enantioselective aminoboration of simple and unactivatedterminalalkenes with bis(pinacolato)diboron (pinB‐Bpin) and hydroxylamines has been developed. The amino group and boryl group were incorporated at the internal position and terminal position, respectively, and the corresponding chiral β‐borylalkylamines were obtained with good to high enantiomeric
Regioselective and Stereospecific Copper-Catalyzed Aminoboration of Styrenes with Bis(pinacolato)diboron and <i>O</i>-Benzoyl-<i>N</i>,<i>N</i>-dialkylhydroxylamines
A Cu-catalyzed regioselective and stereospecific aminoboration of styrenes with bis(pinacolato)diboron and O-benzoyl-N,N-dialkylhydroxylamines that delivers the corresponding beta-aminoalkylboranes in good yields has been developed. The Cu catalysis enables introduction of both amine and boron moieties to C-C double bonds simultaneously in a syn fashion. Moreover, the use of a chiral biphosphine ligand, (S,S)-Me-Duphos, provides a catalytic enantioselective route to optically active beta-aminoalkylboranes.