Ni-Catalyzed Neopentylglycolborylation of Aryl Chlorides

Significance

Neopentylglycolborane can be readily prepared from BH₃˙SMe₂ and the neopentylglycol. Its reaction with aryl chlorides in the presence of a nickel catalyst gives rise to aryl neopentyl boronates, which are stable derivatives of highly synthetically useful arylboronic acids. This is an interesting example of the application of a ‘mixed ligand’ catalytic system.