Patent · US Expired

Process for intermolecular etherification and ether cleavage

US6218580A · kind A · utility

2Cited by

1References

18Claims

0Family size

Assignee

Degussa-Huels AG · DE

Inventors

Marcus Morawietz · Hanau, DE
Thomas Haas · Munster, DE
Olaf Burkhardt · Kalmthout, BE
Rudolf Vanheertum · Alzenau, DE

Key dates

Filing date	Nov 6, 1998
Grant date	Apr 17, 2001
Priority date	—
Expiry date	Nov 6, 2018

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C41/09
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The acid-catalyzed intermolecular etherification of mono- or polyhydric alcohols and acid-catalyzed ether cleavage in the presence of water may be improved if etherification or ether cleavage is carried out in the presence of an acid catalyst and, additionally, a hydrogenation catalyst under a hydrogen atmosphere. The process relates in particular to the etherification of diols, triols and tetrols with the formation of hydroxyethers.

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