Process for making activated aldarate esters, ester/lactones and lactones
AssigneeThe UAB Research Foundation
InventorsDonald E. Kiely, Liang Chen, David W. Morton
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Abstract
A single step process for converting aldaric acid salts to activated aldarates utilizing a lower alkanol as both solvent and esterifying agent is described. The activated aldarates are particularly useful as monomers for polymerizations with primary diamines in which the nitrogen atoms are bound to aliphatic carbon atoms to form poly(aldaramides).
Claims6
A one-step process which comprises reacting a salt of glucaric acid selected from the group consisting of sodium, potassium and ammonium salts with a molar excess of a lower aliphatic alcohol in the presence of a strong acid in the substantial absence of water to form at least one glucaric acid ester.
Dependencies are inferred from the claim text.