Patent · US Expired

Preparation of R/S-.gamma.-lipoic acid or R/S-.alpha.-lipoic acid

US5380920A · kind A · utility

3Cited by

2References

2Claims

0Family size

Assignee

BASF SE

Inventors

Joachim Paust · Schifferstadt, DE
Peter Eckes · Kelkheim, DE
Wolfgang Siegel · Schifferstadt, DE
Friedhelm Balkenhohl · Schifferstadt, DE
Walter Dobler · Schwetzingen, DE
Michael Hullmann · Bensheim, DE

Key dates

Filing date	Aug 30, 1993
Grant date	Jan 10, 1995
Priority date	—
Expiry date	Aug 30, 2013

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D339/04
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A process for preparing R/S-.gamma.-lipoic acid of the formula I or R/S-.alpha.-lipoic acid of the formula II ##STR1## is disclosed.

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