Patent ID: 8507680

Claim:
A production process of a heteroaryl boron compound of formula (V) or (VI): wherein, X, Y, Z, R 1 and R 2 are the same as defined below, comprising: reacting an aromatic heterocyclic compound of formula (I) with a boron compound of formula (III) or (IV) in the presence of an iridium-containing catalyst and a ligand: wherein, X is an optionally substituted imino group, Y and Z are each independently —CH═ or —N═, and R 1 and R 2 are adjacent and form a ring of formula (II): wherein, R 3 is a hydrogen atom, a linear or branched C 1-8 alkyl group, a linear or branched C 1-8 alkoxy group, nitro group, cyano group, halogenated C 1-8 alkyl group, halogen atom, carbamoyl group, C 1-8 acyl group, C 1-8 alkoxycarbonyl group or optionally substituted amino group: