Chemoselective Palladium‐Catalyzed Suzuki‐Miyaura Cross‐Coupling of (Diborylmethyl)silanes with Alkenyl Bromides

Abstract Herein, we report the development of a palladium‐catalyzed chemoselective cross‐coupling of (diborylmethyl)silanes with alkenyl bromides. The reaction shows broad scope with respect to alkenyl bromides and (diborylmethyl)silanes, affording a range of α‐silyl‐substituted allylic boronate esters in good‐to‐excellent yields. The practicality of the developed coupling reaction is demonstrated by the gram‐scale synthesis of α‐silyl‐substituted allylic boronate ester.