Indenylidene‐Ruthenium Complexes Bearing Saturated N‐Heterocyclic Carbenes: Synthesis and Catalytic Investigation in Olefin Metathesis Reactions | Zendy

Monsaert Stijn | Zendy; Drozdzak Renata | Zendy; Dragutan Valerian | Zendy; Dragutan Ileana | Zendy; Verpoort Francis | Zendy

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Indenylidene‐Ruthenium Complexes Bearing Saturated N‐Heterocyclic Carbenes: Synthesis and Catalytic Investigation in Olefin Metathesis Reactions

Author(s) -

Monsaert Stijn,

Drozdzak Renata,

Dragutan Valerian,

Dragutan Ileana,

Verpoort Francis

Publication year - 2008

Publication title -

european journal of inorganic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.667

H-Index - 136

eISSN - 1099-0682

pISSN - 1434-1948

DOI - 10.1002/ejic.200700879

Subject(s) - chemistry , carbene , metathesis , catalysis , ruthenium , ring opening metathesis polymerisation , ligand (biochemistry) , medicinal chemistry , salt metathesis reaction , acyclic diene metathesis , olefin metathesis , cyclooctadiene , polymerization , polymer chemistry , organic chemistry , biochemistry , receptor , polymer

The synthesis of complexes of the general formula Cl 2 Ru(SIMes)(L)(3‐phenylinden‐1‐ylidene) ( 5 , L = PCy 3 ; 6 , L = py; and 7 , L = PPh 3 ) from Cl 2 Ru(PR 3 ) 2 (3‐phenylinden‐1‐ylidene) ( 2a , R = Ph; 2b , R = Cy) is reported. This family of olefin metathesis catalysts was fully characterized ( 1 H, 13 C and 31 P NMR spectroscopy and elemental analysis) and provided excellent activity in the ring‐opening metathesis polymerization of 1,5‐cyclooctadiene and the ring‐closing metathesis of diethyl diallylmalonate. Comparison with the corresponding benzylidene‐containing catalysts, 1a , c and 8b , established the decisive role of the carbene ligand on the procedure of the reaction and led to the observation of an unusual catalytic phenomenon, here called “self‐inhibition”.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)

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