Patent · US Active

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

US8153810B2 · kind B2 · utility

2Cited by

13References

35Claims

0Family size

Assignee

EVONIK DEGUSSA GMBH · DE

Inventors

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

Key dates

Filing date	Apr 20, 2011
Grant date	Apr 10, 2012
Priority date	—
Expiry date	Apr 20, 2031

Classification

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

Abstract

The invention relates to a complex of ruthenium of the structural formula I, The invention further relates to a process for preparing acyclic olefins having two or more carbon atoms or/and 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 an olefin metathesis reaction in the presence of at least one catalyst, wherein a complex is used as catalyst and R′1, R′2, R′3 and R′4 are hydrogen or/and hydrocarbon groups.

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