5-Keto-L-ascorbic acid-5,5-dimethyl ketal, derivatives thereof a

Details 5-Keto-L-ascorbic acid-5,5-dimethyl ketal, derivatives thereof a 5-Keto-L-ascorbic acid-5,5-dimethyl ketal, derivatives thereof a

1979-07-20

1981-06-30

Milestone, Norma S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D30762

Patent

active

042762197

ABSTRACT:
5-Keto-L-ascorbic acid-5,5-dimethyl ketal, alkali metal and alkaline earth metal salts thereof; process for the preparation thereof; its use as an antioxidant and intermediate for production of 5-keto-L-ascorbic acid and L-ascorbic acid. 5-Keto-L-ascorbic acid and its 5,5-dimethyl ketal exhibit antiscorbutic activity.

REFERENCES:
patent: 4159990 (1979-07-01), Andrews
patent: 4180511 (1979-12-01), Crawford
E.R.H. Walker, Chem. Soc. Reviews (1976) vol. 5, pp. 26, 27, 31, 49, 50.
N. Umino et al., Tetrahedron Letters, No. 10 (1976) pp. 763-766.

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