Copper-catalyzed protodeboronation of arylboronic acids in aqueous media†
Abstract
A general and efficient protocol for the CuSO4·5H2O-catalyzed protodeboronation of arylboronic acids in aqueous ethanol is described. This catalytic system exhibits high activity towards a wide range of arylboronic acids. The results demonstrate that the protodeboronation reaction is promoted by oxygen.