用途:Tetrahydroxydiboron (BBA) is an efficient borylating agent that can be used to borylate a wide variety of aryl and heteroaryl substrates with low Pd- and Ni-catalyst loads. Other reactions employing BBA as a reagent: · Palladium-catalyzed boronation of vinyl cyclopropane, vinyl aziridine, and allyl acetate substrates. · To facilitate catalytic transfer hydrogenations of simple alkenes and alkynes. · Selective reducing agent for in situ N-oxide reduction of pyridine-N-oxides. · As a substitute to bis(pinacolato) diboron for Miyaura borylation.