Borinic Acids via Direct Arylation of Amine–Borane Complexes: An Air- and Water-Stable Boron Source

Abstract

A synthesis of borinic acids and borinates was optimized using amine–borane complexes as a water and air insensitive borylating agent. The reaction operates under convenient conditions using a non-cryogenic temperature and with no flash chromatography, and it gives no boron impurities. The reaction proceeds through a tandem dehydrogenation–double addition mechanism.

Key words

borinic acids - borinates - amine–borane complexes - borylation

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