PROCESS FOR PREPARING AQUEOUS SOLUTION OR GLYOXYLIC ACID Russian patent published in 1997 - IPC

Abstract RU 2072348 C1

FIELD: synthesis of medicinal and cosmetic agents. SUBSTANCE: product glyoxylic acid: C₂H₂O₃.. Yield is 10-70%. Reagent 1: oxygen containing compounds of formula: X-CH₂OH, wherein X is CN or COOH. Reagent 2: nitric acid. Reaction conditions: oxidation of these compounds in hydrochloric acid having 27-37% concentration in the presence of vanadium pentaxide in amount of 0.002-0.01 per mole of organic compound at 20-70 C. EFFECT: more efficient preparation process. 2 cl, 2 tbl

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RU 2 072 348 C1

Authors

Gan'Kin Ju.A.

Valeshnij S.I.

Malakhova V.G.

Dates

1997-01-27—Published

1992-07-28—Filed