Patent · US Active

Alkylidene complexes of ruthenium containing N-heterocyclic carbene ligands; use as highly active, selective catalysts for olefin metathesis

US7652145B2 · kind B2 · utility

49Cited by

4References

26Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Wolfgang Anton Herrmann · Freising, DE
Wolfgang Schattenmann · Burghausen, DE
Thomas Weskamp · Munich, DE

Key dates

Filing date	Dec 23, 2004
Grant date	Jan 26, 2010
Priority date	—
Expiry date	Aug 13, 2028

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C2531/24
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to a complex compound of ruthenium of the general structural formula I The invention relates also to a process for the preparation of acyclic olefins having two or more carbon atoms or/and of cyclic olefins having four or more carbon atoms from acyclic olefins having two or more carbon atoms or/and from cyclic olefins having four or more carbon atoms by olefin metathesis reaction in the presence of at least one catalyst, wherein such a complex compound is used as catalyst and wherein R′1, R′2, R′3 and R′4 hydrogen or/and hydrocarbon groups.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.