Benzocyclobutene-4-boronic acid is a compound composed of benzocyclobutene (BCB) monomers and boronic acid, and can be used as a material in microelectronics or as a pharmaceutical intermediate. Its benzocyclobutene component is a known highly reactive molecule with a low-polarity hydrocarbon structure, and is widely used in microelectronic applications as a material with a low dielectric constant. Furthermore, BCB-functionalised oligomers or polymers can be used as varnishes for enamelled wires, setting agents for high-performance carbon fibres, and encapsulation resins in the microelectronics industry. The boronic acid group, meanwhile, plays a significant role in drug discovery.
