Process for production of heteroaryl-type boron compounds with iridium catalyst

A process of producing a heteroaryl boron compound represented by formula (V) or (VI):

• wherein, X, Y, Z, R1 and R2 are the same as defined below, comprising:
• reacting an aromatic heterocyclic compound represented with the following formula (I):
• wherein X represents an oxygen atom or a sulfur atom, each of Y and Z represents —CH═, R1 and R2 may be the same or different and each represents a hydrogen atom, a linear or branched C1-8 alkyl group, a linear or branched C1-8 alkoxy group, a nitro group, a cyano group, a halogenated C1-8 alkyl group, a halogen atom, a carbamoyl group, a C1-8 acyl group, a C1-8 alkoxycarbonyl group, an amino group which may have a substituent,
• with a boron compound represented with the following formula (III) or (IV):
• in the presence of a univalent iridium complex catalyst of formula (X):
• IrABn (X)
• wherein A represents a chlorine atom, a linear or branched C1-8 alkoxy group, a hydroxyl group or a phenyloxy group which optionally has a substituent, B represents 1,5-cyclooctadiene or 1-cyclooctene, and n represents 1 or 2, or a univalent iridium complex catalyst in which the complexing ligand has formula:
• wherein R3 represents a hydrogen atom, a linear or branched C1-8 alkyl group, a linear or branched C1-8 alkoxy group, a nitro group, a cyano group, a halogenated C1-8 alkyl group, a halogen atom, a carbamoyl group, a C1-8 acyl group, a C1-8 alkoxycarbonyl group, or an amino group which may or may not have a substituent.