valuable C-B bonds. Borylation of nonactivated C(sp )-H is one of the most challenging subjects in the area. In the past decades, a series of methods have been established, and most of them require transition-metals as catalysts, including W, Rh, Pd, 7-10 Ir (Scheme 1a), and the reaction conditions could be very harsh (temperature 100∼150 • C).