Cobalt- and iron-catalyzed regiodivergent alkene hydrosilylations

Abstract

A complementary set of base metal catalysts has been developed for regiodivergent alkene hydrosilylations: iron complexes of amine-iminopyridine ligands are selective for Markovnikov hydrosilylations (branched/linear up to >99 : 1), while the cobalt complexes bearing the same type of ligands provide excellent levels of anti-Markovnikov selectivity (linear/branched up to >99 : 1). Both systems exhibit high efficiency and wide functional group tolerance.