Bis-betaine-amine oxides, process for their preparation, and...

Details Bis-betaine-amine oxides, process for their preparation, and... Bis-betaine-amine oxides, process for their preparation, and...

C - Chemistry, Metallurgy

11

D

167/310, 260/523

C11D 1/42 (2006.01) A61K 8/40 (2006.01) C11D 1/90 (2006.01)

Patent

CA 1184930

Abstract of the disclosure: Bis-betaine-amine oxides of the formula Image (I) in which R is a saturated of an olefinically unsaturated hydrocarbon radical having 1 to 3 double bonds and 8 to 22 carbon atoms, n1 and n2 each is an integer of from 2 to 3, n1 and n2 optionally being identical or different, m1 and m2 each is an integer of from 1 to 4, m1 and m2 optionally being identical or different, and a, b, c and d, being identical or different, each is a number of from 1 to 5, with the proviso that the sum (a + b + c + d) is at most 10. The compounds are prepared from primary amines of the formula RNH2, by dicyanoalkylation, hydrogenation, ethoxy- lation, reaction with alkali metal salts of .omega.-halocarboxylic acids, and subsequent oxidation with hydrogen peroxide. They are surfactants of mild action and suitable for formulating cosmetic and industrial cleaning agents.

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