Process for making activated aldarate esters, ester/lactones and

Details Process for making activated aldarate esters, ester/lactones and Process for making activated aldarate esters, ester/lactones and

1992-08-12

1994-05-17

Dees, Jose G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

549305, 549314, C07C 69675

Patent

active

053129679

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).

REFERENCES:
patent: 4833230 (1989-05-01), Kiely et al.
Hirasaka, et al., Chem. Pharm. Bull., 13, 677-80 (1965).
Smith, J. Chem. Soc., 633-6 (1944).
Hashimoto, et al., Makromol. Chem., Rapid Commun., 11, 393-396 (1990).

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