Cross-metathesis of olefins directly substituted with an...

Details Cross-metathesis of olefins directly substituted with an... Cross-metathesis of olefins directly substituted with an...

2003-04-07

2009-10-06

Andres, Janet L. (Department: 1625)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S336000, C556S021000, C556S022000, C556S136000, C502S152000, C502S155000

Reexamination Certificate

active

07598330

ABSTRACT:
The invention pertains to the use of Group 8 transition metal alkylidene complexes as catalysts for olefin cross-metathesis reactions. In particular, ruthenium and osmium alkylidene complexes substituted with an N-heterocyclic carbene ligand and at least one electron donor ligand in the form of a heterocyclic group are used to catalyze cross-metathesis reactions to provide a olefin products that are directly substituted with an electron-withdrawing group.

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