From trihydroborates to bisborylenes: a route to dinuclear bisborylene complexes

Abstract

A new route for the synthesis of dinuclear bisborylene complexes was described. A series of novel diruthenium bisborylenes were prepared through unprecedented triple B–H oxidative addition of trihydroborates with concomitant hydrogen liberation. Conversion of trihydroborates to bisborylenes involved the formation of tris(σ-B–H) borate as the crucial intermediate stage.