Si-B Bond Formation
Silylboranes are nucleophilic silylation reagents that can be activated by transition-metal catalysts or bases. Rh- and Pt-catalyzed direct borylations of hydrosilanes with bis(pinacolato)diboron enable the synthesis of trialkylsilylboranes that bear bulky alkyl groups as well as functionalized dialkylarylsilylboranes that are difficult to synthesize via conventional methods using alkali metals.
R. Shishido, M. Uesugi, R. Takahashi, T. Mita, T. Ishiyama, K. Kubota, H. Ito, J. Am. Chem. Soc., 2020, 142, 14125-14133.