2.3 Cobalt- and Iron-Catalyzed Hydroboration

Abstract The hydroboration reaction provides a highly practical and straightforward approach to access organoboron compounds. In modern synthetic chemistry, catalysts based on abundant transition metals such as cobalt and iron have been widely employed in this transformation. This chapter summarizes some selected recent examples of cobalt- and iron-catalyzed hydroboration reactions of unsaturated organic molecules, such as alkenes, alkynes, dienes, diynes, enynes, ketones, and nitriles, with an emphasis on the control of chemo-, regio-, and stereoselectivity.