PROCESS FOR PRODUCTION OF HETEROARYL-TYPE BORON COMPOUNDS WITH IRIDIUM CATALYST

摘要

The invention provides an economical, simple, and industrially advantageous process for the production of heteroaryl-type boron compounds by reacting an heteroaromatic compound with a boron compound in one step under mild conditions, which permits selective production of an aromatic heterocycle -monoboron compound and an aromatic heterocycle-diboron compound in high yield and which makes it possible to give both products at a desired ratio only by changing the charge ratio between the raw materials. Specifically, a process for production of heteroaryl-type mono- or di-boron compounds, characterized by reacting a heteroaromatic compound with bis(pinacolato)diboron or pinacolatodiborane in the presence of an iridium catalyst and a ligand such as bipyridyl.