In pharmaceuticals, agrochemical intermediates, OLED/organic semiconductors, and functional polymers, aryl–aryl and heteroaryl–aryl bond formation is ubiquitous.
Boric acid (ester) is an important molecular synthesis block, especially special boric acid (ester) such as heterocyclic ring, allyl, saturated hydrocarbon and substrate containing two functional groups, are popular blocks in synthetic chemistry.