Osmium metal carbene complexes and ruthenium metathesis activity of high-

摘要

It is stable in the presence (57) of the functional groups [Abstract] Various ruthenium and osmium carbene compounds which can be used as catalysts for olefin metathesis reactions to acyclic olefins and cyclic no distortion is disclosed. The carbene compound is represented by formula (a). Wherein there is Os or Ru is M; hydrogen, substituted or unsubstituted alkyl, R is and is selected from the group consisting of substituted or unsubstituted aryl; are X ¹ and X, independently is hydrogen R ¹ Te is selected from anionic ligands; L, and independently, L ¹ is selected from a neutral electron donor. With a diazo compound, the neutral electron donor ligand exchange, by cross metathesis, using acetylene, using cumulative olefin, and diazo compounds and ruthenium and osmium carbene compounds of the present invention, medium It is possible by a one-pot method using sex electron donor, is synthesized. Depolymerization ROMP, RCM, unsaturated polymers, synthesis of telechelic polymers, and ruthenium and osmium carbene compounds of the present invention, a catalyst for olefin metathesis reactions olefin synthesis (but not limited to) such can be used.