Reactivity of carbene complexes of tungsten bearing a carbon carbon double bond in a side chain: metathesis reactions of the double bond

Abstract

Carbene complexes of tungsten, bearing one or two double bond in one or two alkyl chains, react with metathesis catalysts to give either dicarbene complexes as a result of an intermolecular reaction, or carbene complexes bearing a cyclo-olefin, as the result of an intramolecular metathesis reaction.