Catalytic oxidation of uronic acids to aldaric acids

Disclosed is the oxidation of uronic acids, such as galacturonic acid, to the corresponding aldaric acids (characterized by the formula HOOC-(CHOH)n-COOH, with n being an integer of from 1 to 5) such as galactaric acids. The starting material comprising the uronic acid is subjected to oxygen under the influence of a supported gold catalyst and in the presence of a base. The oxidation occurs in good selectivity and yield, under unexpectedly mild conditions. A source of galacturonic acids is pectin, such as that derived from sugar beet pulp.

Bibliographic Details

Main Authors:	van Es, D.S., van Haveren, J., Raaijmakers, J.M., van der Klis, F., van Engelen, S., Frissen, A.E.
Format:	Patent biblioteca
Language:	English
Subjects:	Life Science,
Online Access:	https://research.wur.nl/en/publications/catalytic-oxidation-of-uronic-acids-to-aldaric-acids
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