Enantioselective palladium catalyzed conjugate additions of ortho-substituted arylboronic acids to β,β-disubstituted cyclic enones: total synthesis of herbertenediol, enokipodin A and enokipodin B
Enantioselective construction of <i>ortho</i>-substituted benzylic quaternary centers using a phenanthroline-Pd catalyst
作者:Masafumi Tamura
DOI:10.1039/d2ob01743a
日期:——
addition of ortho-substituted arylboronic acids to cyclic enones was developed. The addition of various ortho-substituted arylboronic acid to β-substituted cyclic enones, via catalysis with a chiral phenanthroline-Pd complex, formed cyclic ketone products bearing ortho-substituted benzylic all-carbon quaternarycenters with good yields and high enantioselectivity.