Cobalt‐Catalysed, Ligand‐Controlled Regiodivergent Alkene Hydrosilylation

Alkene hydrosilylation is amongst the largest industrial homogenous catalysis processes. Cobalt offers a sustainable alternative to commonly used platinum catalysts achieve this transformation. Using two bisiminopyridine cobalt(II) regiodivergent of alkenes has been developed. Variation pre-catalyst activator and ligand substituents were investigated enable controlled, both aryl- alkyl-substituted with phenylsilane. In contrast other regiodivergence strategies, excellent regioselectivity for either isomer was achieved using same class but differing by single methyl group (ethyl vs isopropyl).