Organic Photoredox-Catalyzed\nHydrosilylation of Vinylboronic\nEsters for the Synthesis of Geminal and Vicinal Borosilanes

Geminal\nand vicinal borosilanes have unique applications in functional\nmaterials and synthetic transformations. Herein, a convenient method\nfor the synthesis of geminal and vicinal borosilanes is developed\nvia photoredox metal-free hydrosilylation of vinylboronic esters.\nThis strategy features the advantages of high atom economy, environmental\nfriendliness, and excellent functional group compatibility. The mechanism\nstudies reveal that the catalytic reaction goes through photoredox\nHAT catalysis and a radical addition pathway.