| 摘要 |
The invention relates to complexes of ruthenium of the structural formula IwhereX is an anionic ligand,Z is a monodentate to tridentate ligand which contains a metal and is nonionically bound to the ruthenium center,R<1 >and R<2 >are identical or different and are each hydrogen or/and a hydrocarbon group, but may also form a ring, andLigand L is an N-heterocyclic carbene, and also to a process for preparing acyclic olefins having two or more carbon atoms or/and cyclic olefins having three or more carbon atoms and the use of at least one complex of the formula I in olefin metathesis.
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