Patent · US Expired

Metathesis catalysts

US6903241B2 · kind B2 · utility

2Cited by

3References

5Claims

0Family size

Assignee

Symrise GmbH & Co. KG · DE

Inventors

Ingo Wöhrle · Holzminden, DE
Peter Esser · Recklinghausen, DE
Aurelia Reckziegel · Holzminden, DE
Matthias Brandt · Wuppertal, DE
Stephan Klein · Mettmann, DE
Thomas Turek · Boston, US

Key dates

Filing date	Aug 23, 2002
Grant date	Jun 7, 2005
Priority date	—
Expiry date	Jan 6, 2023

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C2601/18
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present invention relates to supported catalysts based on Re2O7/(—Al2O3 for use in the preparation of cycloalkadienes in a metathesis reaction, a process for preparing cycloalkadienes in the presence of these supported catalysts and also the use of the resulting cycloalkadienes for preparing fragrances.

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