Patent · US Expired

Preparation of 6-aminocaproic acid

US4950429A · kind A · utility

8Cited by

7References

8Claims

0Family size

Assignee

BASF SE

Inventors

Uwe Vagt · Speyer, DE
Rolf Fischer · Heidelberg, DE
Franz Merger · Bischofswerda, DE
Hans-Martin Hutmacher · Ludwigshafen, DE

Key dates

Filing date	Mar 23, 1989
Grant date	Aug 21, 1990
Priority date	—
Expiry date	Mar 23, 2009

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C51/09
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

6-Aminocaproic acid is prepared by PA1 (a) reacting a 5-formylvaleric acid ester with water in the presence of an acid agent at 30.degree.-200.degree. C. and PA1 (b) reacting the 5-formylvaleric acid thus obtained with excess ammonia and hydrogen in the presence of a hydrogenation catalyst and of a solvent which is inert under the reaction conditions at 50.degree.-150.degree. C. under superatmospheric pressure.

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