Latent, high-activity olefin metathesis catalysts containing an N-heterocyclic carbene ligand
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机译:含有N-杂环卡宾配体的潜在高活性烯烃复分解催化剂
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摘要
The invention provides novel organometallic complexes useful as olefin metathesis catalysts. The complexes have an N-heterocyclic carbene ligand and a chelating carbene ligand associated with a Group 8 transition metal center. The molecular structure of the complexes can be altered so as to provide a substantial latency period. The complexes are particularly useful in catalyzing ring closing metathesis of acyclic olefins and ring opening metathesis polymerization of cyclic olefins.
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