Patent · US Expired

Method for the dihydroxylation of olefins using transition metal catalysts

US6825377B1 · kind B1 · utility

26Cited by

3References

14Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Matthias Beller · Ostseebad Nienhagen, DE
Christian Döbler · Rostock, DE
Gerald Mehltretter · Schreiber, CA
Uta Sundermeier · Leichlingen, DE

Key dates

Filing date	Oct 19, 2001
Grant date	Nov 30, 2004
Priority date	—
Expiry date	Oct 19, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C2601/14
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

This invention relates to process for dihydroxylation of olefins using transition metal catalysts to obtain monofunctional, bifunctional, and/or polyfunctional 1,2-diols of the formula (I)R1R2C(OH)—C(OH)R3R4  (I)where R1 to R4 are defined herein, by reacting an olefin of the formula (II)R1R2C&boxH;CR3R4  (II)where R1 to R4 are defined as for formula (I),with molecular oxygen in the presence of an osmium, ruthenium, or manganese compound in water or a water-containing solvent mixture at a pH of from 7.5 to 13.

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