Preparation of diacetone-ketogulonic acid
AssigneeMerck Patent GmbH
InventorsFritz Reiff, Willi Wintermeyer, Rolf Wittmann, Jurgen Butzke, Peter Muller
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Abstract
A process for preparing diacetone-ketogulonic acid comprises oxidizing diacetonesorbose to diacetone-ketogulonic acid to an extent of about 30-95% by electrochemical oxidation or O.sub.2 oxidation; electrodialysing the resultant reaction solution to separate the pure diacetoneketogulonic acid from the unoxidized diacetonesorbose; and recycling the unoxidized diacetone-sorbose to the oxidation step.
Claims8
A process for preparing diacetone-ketogulonic acid comprising oxidizing diacetonesorbose to diacetone-ketogulonic acid to an extent of about 30-95% by electrochemical oxidation or O.sub.2 oxidation;
- electrodialysing the resultant reaction solution to separate the diacetone-ketogulonic acid from the unoxidized diacetonesorbose;
- and recycling the unoxidized diacetonesorbose to the oxidation step.
Dependencies are inferred from the claim text.