Preparation of potassium magnesium l-ascorbate 2-phosphate

Details Preparation of potassium magnesium l-ascorbate 2-phosphate Preparation of potassium magnesium l-ascorbate 2-phosphate

C - Chemistry, Metallurgy

07

F

C07F 9/655 (2006.01) C07D 307/62 (2006.01)

Patent

CA 2048192

Potassium magnesium L-ascorbate 2-phosphate is prepared from an aqueous solution of potassium L-ascorbate 2-phosphate which is highly contaminated with KCl, as is produced in the phosphorylation of 5,6-iso- propylidene-L-ascorbic acid, by adding to the solution about 1 equivalent of magnesium ions per equivalent of L- ascorbate 2-phosphate, and subsequently removing the KCl by electrodialysis. The product of this process is a novel salt of L-ascorbic acid 2-phosphate and has very advantageous handling properties.

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