Process for preparing solid betaines

Details Process for preparing solid betaines Process for preparing solid betaines

1991-02-08

1991-12-24

Shippen, Michael L.

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

Organic compounds

Carboxylic acids and salts thereof

562553, 562567, C07C22900

Patent

active

050754980

ABSTRACT:
Betaines are produced in solid form by reacting a tert-amine with a haloalkanoate salt when the reaction is conducted in a polar aprotic solvent in which the betaine is substantially insoluble. In a preferred embodiment, the tert-amine is an N-alkyldimethylamine, the haloalkanoate is sodium chloroacetate, and the solvent is ethyl acetate.

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Nandakumar, "Journal of the Oil Technologists' Association of India," vol. 11 (2), pp. 31-34 (1979).

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