a Laboratoire Arômes, Synthèses, Interactions, Université de Nice-Sophia Antipolis, 06108 Nice cedex 2, France b Laboratoire de Chimie Bio-Organique, CNRS, UMR 6001, Université de Nice-Sophia Antipolis, 06108 Nice cedex 2, France
Abstract:
A novel preparation of benzylboronic acids and esters is described by using an electrochemical reductive coupling reaction between benzylic halides and borating agents (trialkylborates or pinacolborane). The reaction is carried out at room temperature in DMF or THF with the use of a sacrificial magnesium anode in a single-compartment cell.