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Organometallic ruthenium complexes and related methods for the preparation of tetra-substituted and other hindered olefins
Organometallic ruthenium complexes and related methods for the preparation of tetra-substituted and other hindered olefins
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机译:有机金属钌配合物及其制备四取代烯烃和其他受阻烯烃的方法
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摘要
The invention relates to ruthenium alkylidene complexes having an N-heterocyclic carbene ligand comprising a 5-membered heterocyclic ring having a carbenic carbon atom and at least one nitrogen atom contained within the 5-membered heterocyclic ring, wherein the nitrogen atom is directly attached to the carbenic carbon atom and is substituted by a phenyl ring, and wherein the phenyl ring has a hydrogen at either or both ortho positions and is substituted at at least one ortho or meta position. The invention also relates to an olefin metathesis reactions and particularly to the preparation of tetra-substituted cyclic olefins via a ring-closing metathesis.
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