Enantioselective construction of stereogenic quaternary centres via Rh-catalyzed asymmetric addition of alkenylboronic acids to α,β-unsaturated pyridylsulfones†
Abstract
The highly enantioselective construction of all-carbon quaternary stereogenic centres via Rh-catalyzed Chiraphos-mediated conjugate addition of alkenylboronic acids to β,β-disubstituted α,β-unsaturated 2-pyridylsulfones is described.