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Double CH Activation of an N‐Heterocyclic Carbene Ligand in a Ruthenium Olefin Metathesis Catalyst
Author(s) -
Hong Soon Hyeok,
Chlenov Anatoly,
Day Michael W.,
Grubbs Robert H.
Publication year - 2007
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200701234
Subject(s) - carbene , ruthenium , metallacycle , ligand (biochemistry) , chemistry , metathesis , medicinal chemistry , catalysis , olefin metathesis , ring (chemistry) , double bond , olefin fiber , stereochemistry , polymer chemistry , organic chemistry , polymerization , physics , x ray crystallography , biochemistry , receptor , polymer , diffraction , optics
Having a breakdown : Decomposition of the olefin metathesis catalyst [(biph)(PCy 3 )Cl 2 RuC(H)Ph] (biph= N , N ′‐diphenylbenzimidazol‐2‐ylidene, Cy=cyclohexyl) results in benzylidene insertion into an ortho CH bond of an N ‐phenyl group of the biph ligand. The ruthenium center further inserts into another ortho CH bond of the other N ‐phenyl ring to give a new RuC bond as a part of a five‐membered metallacycle (see scheme).
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