Carbohydrate-derived surfactants and their precursors

Details Carbohydrate-derived surfactants and their precursors Carbohydrate-derived surfactants and their precursors

1996-07-12

1998-01-20

Shippen, Michael L.

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

Organic compounds

Amino nitrogen containing

564298, C07C29100

Patent

active

057103321

ABSTRACT:
A method for the manufacture of N,N dialkylglycamine compounds of general formula R.sub.2 NR.sub.1 R.sub.3 (I) by reacting a secondary amine of general formula R.sub.2 NHR.sub.3 (II) in which R.sub.2 is a straight or branched chain alkyl or hydroxyalkyl group having from 1 to 4 carbon atoms and R.sub.3 is a residue from a monosaccharide, with an alkali metal or alkaline earth metal aliphatic sulphate, R.sub.1 SO.sub.4 M, in which R.sub.1 is a straight or branched chain alkyl or alkenyl group having from 8 to 24 carbon atoms.
The betaine, suphobetaine and N-oxidised derivatives of (I) are provided for use as mild surfactants.

REFERENCES:
patent: 2016956 (1935-10-01), Calcott
patent: 2016962 (1935-10-01), Flint
patent: 2016963 (1935-10-01), Flint
patent: 2060851 (1936-11-01), Calcott
patent: 2181941 (1939-12-01), Goldacker
Chemical Abstracts, vol. 82, No. 16, Apr. 21, 1975, p. 168, Abstract No. 100590d, Columbus, Ohion, US of Veksler et al & ZH. Obshck. Khim. vol. 44, No. 10, 1974, pp. 2367-2368.

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