Reduction of 2,5-diketogluconic acid

Details Reduction of 2,5-diketogluconic acid Reduction of 2,5-diketogluconic acid

1980-04-25

1982-06-29

Garner, Vivian

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

Organic compounds

Carboxylic acid esters

2605011, 26050115, 562577, 549315, C07C 69716

Patent

active

043373500

ABSTRACT:
The novel stereoselective and regioselective alkali metal borohydride reduction of 2,5-diketogluconic acid, alkyl esters or salts thereof to form 2-ketogulonic acid together with lesser amounts of 2-ketogluconic acid is disclosed. The 2-ketogulonic acid is readily converted to ascorbic acid.

REFERENCES:
patent: 2188777 (1940-01-01), Pasternack et al.
patent: 2918492 (1959-12-01), Hathaway
Wakisaka, Agr. Biol. Chem., 28, 819 (1964).
Katznelson et al., J. Biol. Chem., 204, 43 (1953).
Barnaerts et al., Antonie van Leeuwenhoeck, 37, 185 (1971).
Ogawa et al., Carbohydrate Research, vol. 51, 1976.
Wagner et al., Synthetic Org. Chem., pp. 261-262, 1965.

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