Process for the preparation of pyrrolidonecarboxylic acid/metal/

Details Process for the preparation of pyrrolidonecarboxylic acid/metal/ Process for the preparation of pyrrolidonecarboxylic acid/metal/

1978-10-31

1980-08-26

Lee, Mary C.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

26032622, 528114, 528117, 528407, C07F 108, C07F 306, C07F 308, C07F 1504

Patent

active

042196507

ABSTRACT:
A process for the preparation of pyrrolidone-5-carboxylic acid/metal salt/amine complexes by reacting 1 mol of a L-glutamic acid lower alkyl ester/metal salt complex with 1 mol of an aliphatic, cycloaliphatic or aromatic-aliphatic damine or 2 mols of an aliphatic or cycloaliphatic monoamine in a polar solvent, with the elimination of 2 mols of alcohol.
The complex compounds prepared according to the invention are valuable curing agents for epoxide resins.

REFERENCES:
patent: 2819233 (1958-01-01), Smith et al.
patent: 2915540 (1959-12-01), Chang et al.

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