Patent · US Expired

Method for the catalytic epoxidation of olefins with hydrogen peroxide

US4845252A · kind A · utility

31Cited by

0References

8Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Manfred Schmidt · Krefeld, DE
Guenter Prescher · Hanau, DE
Johann Buchler · Darmstadt, DE
Axel Kleemann · Hanau, DE

Key dates

Filing date	Mar 23, 1988
Grant date	Jul 4, 1989
Priority date	—
Expiry date	Mar 23, 2008

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P20/584
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A method for the catalytic epoxidation of olefines with hydrogen peroxide in the presence of tungsten oxo complexes or of a binuclear compound of the type .mu.-oxobis [porphyrinato-oxo tungsten (V)] or cis-oxo peroxo tungsten (VI) prophyrin or cis-dioxo porphyrinatotungsten (VI) with octaethyl porphyrin or 5,10,15,20-tetraphenyl porphyrin or 5,10,15,20-tetra(4-pyridyl)-porphyrin as ligands.

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