Transition-metal-free regioselective synthesis of alkylboronates from arylacetylenes and vinyl arenes

Abstract

A transition-metal-free synthesis of alkylboronates, utilizing arylacetylenes or vinyl arenes and bis(pinacolato)diboron through tandem borylation and protodeboronation, has been developed. This reaction is efficient, practical and environmentally benign, leading to anti-Markovnikov products with excellent regioselectivity, broad functional group tolerance and excellent yields in both small and gram scales.