NEW CATALYSTS

摘要

The invention relates to hexacoordinated ruthenium and osmium carbene catalysts for the synthesis of custom-tailored polymers and for the ringclosing metathesis of olefins. It also relates to compositions consisting of dicyclopentadiene or dicyclopentadiene in a mixture with a strained cycloolefin and the ruthenium and osmium carbene catalysts, to processes for preparing metathesis polymers, and to the polymers obtainable in accordance with the processes.