A method of obtaining D-glucuronic acid. The D-glucuronic acid and its
derivatives (lactone, salts, amides, etc.) are biologically high-active
compounds, which are widely used in medicine and pharmaceutical chemistry
for the synthesis of modified drugs as well as used as food additives,
skin-care preparations, and the like. This invention provides an
environmentally friendly method of obtaining D-glucuronic acid which has
widespread operational possibilities. The D-glucuronic acid is obtained
by heating the salts of 1,2-0-isopropylidene-D-glucuronic acid in a
water-containing solution in the presence of an acid agent, for which
sulphonic acid cation exchanger resins are used.
