Production and use of salts of 6,8-bis (amidiniumthio)-octanoic

Details Production and use of salts of 6,8-bis (amidiniumthio)-octanoic Production and use of salts of 6,8-bis (amidiniumthio)-octanoic

1998-03-18

2000-01-11

Carr, Deborah D

Organic compounds -- part of the class 532-570 series

Organic compounds

Fatty compounds having an acid moiety which contains the...

554 85, 554101, C07B 4500

Patent

active

060138157

ABSTRACT:
The invention relates to the production and purification of salts of 6,8-bis (amidiniumthio)octanoic acid, its enantiomers (+)-6,8-bis(amidiniumthio)octanoic acid and (-)-6,8-bis (amidiniumthio)octanoic acid and of the esters of these compounds as well as to their use to produce dihydrolipoic acid and .alpha.-lipoic acid.

REFERENCES:
patent: 2772300 (1956-11-01), Wagner
patent: 2792414 (1957-05-01), Walton
patent: 3223712 (1965-12-01), Ose
Homberger et al., "Synthesis of DL-.alpha.-Lipoic Acid", Journal of American Chemical Society, vol. 75 (1953), pp. 1273-1277.
Tsuji et al., "Synthesis of DL-.alpha.-Lipoic Acid from a Butadiene Telomer", Journal of Organic Chemistry, vol. 43, No. 18, (1978), pp. 3606-3607.
Serge et al., "A New Synthesis of 6-Thioctic Acid (DL-.alpha.-Lipoic Acid)", Journal of American Chemical Society, vol. 79 (1957), pp. 3503-3505.
Frank et al., "The Preparation of Mercaptans from Alcohols", Journal of American Chemical Society, vol. 68 (1946), pp. 2103-2104.
Yadav et al., "Synthesis of Alpha-Lipoic Acid--A Highly Useful Biologically Active Compound", Journal of Scientific and Industrial Research, vol. 49, No. 8 (1990), pp. 400-409.
Chemical Abstracts, vol. 57, No. 4, Abstract No. 4550d (Abstract of French Patent 1,273,856).

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