Patent · US Expired

Preparation of pure monoesters of adipic acid

US4537987A · kind A · utility

5Cited by

4References

5Claims

0Family size

Assignee

BASF SE

Inventors

Heinz-Walter Schneider · Ludwigshafen, DE
Wolfgang Richter · Haar, DE
Walter Disteldorf · Monsheim, DE
Rudolf Kummer · Bischofswerda, DE

Key dates

Filing date	Jul 11, 1984
Grant date	Aug 27, 1985
Priority date	—
Expiry date	Jul 11, 2004

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C67/39
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Pure monoesters of adipic acid are prepared by a process in which PA0 (a) a pentenoate is reacted with carbon monoxide and hydrogen at from 90.degree. to 140.degree. C. and under from 5 to 300 bar in the presence of a carbonyl complex of cobalt or of rhodium, and a 5-formylvalerate is separated off, and PA0 (b) the 5-formylvalerate thus obtained is oxidized with molecular oxygen, or with a gas containing this, at from 20.degree. to 100.degree. C. under from 1 to 10 bar.

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