Organocatalytic hydroborylation promoted by N-heterocyclic olefins†
Abstract
New complexes containing N-heterocyclic vinylene-stabilized [B2H5]+ fragments were prepared, and surprisingly it was found that the precursor N-heterocyclic olefins (NHOs) could promote the mild (room temperature) catalytic hydroborylation of ketones and aldehydes. This finding represents an important addition to the burgeoning field of non-metal mediated catalysis.