Bispinacolatodiborane

Bispinacolatodiborane (CAS 73183-34-3), also known as B2pin2, is a diboron reagent used as a borylation source in synthetic chemistry and pharmaceutical manufacturing.

Where is Bispinacolatodiborane used?

• Pharmaceutical synthesis: reagent for palladium-catalyzed Miyaura borylation, converting aryl and vinyl halides into pinacol boronate esters
• API production: intermediates for Suzuki–Miyaura cross-coupling
• Specialty polymers: introduction of boron-functional groups for controlled crosslinking and stimuli-responsive material design
• Fine chemical and agrochemical synthesis: preparation of borylated building blocks
• Textile and paper sectors: surface-functionalizing agents derived from boronate chemistry
• It delivers two pinacolboronate ester units in a single reagent, enabling introduction of boronic ester groups into organic molecules without air-sensitive handling.

Commercial specifications

• Purity grades typically 97% to 99%+
• Research quantities through to multi-kilogram lots