Recent Progress in Iridium-Catalyzed Remote Regioselective C-H Borylation of (Hetero)Arenes

(Hetero)Aryl boronic acids and their derivatives have been widely used in synthetic chemistry, material sciences, and drug discovery. Accordingly, the development of novel synthetic methods towards these structures has received a great deal of attention. In particular, Ir-catalyzed C-H borylation represents one of the most efficient methods. Due to the restriction of the reaction mechanism, regioselective controllable C-H borylation of Ir catalysis is a formidable challenge, and it is also an important development direction in this area. In this review, the recent progress in Ir-catalyzed remote selective C -H borylation of arenes is systematically discussed.