| 摘要 |
The invention relates to new (pre)catalysts of ruthenium complexes of formula 1, 1 wherein L1, X1, X2, R1, R2, R3, Z and n are as defined in claim 1. The novel ruthenium complexes of formula 1 are convenient (pre)catalysts for metathesis reactions and can be applied i.e. for ring-closing metathesis, cross metathesis or ene-ine metathesis reactions.
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