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Title:
PRODUCTION OF ALKANOYLAMIDOALKYLAMINE OXIDE
Document Type and Number:
Japanese Patent JP11049741
Kind Code:
A
Abstract:

To provide a method for producing the subject compound, by which the conversion of a tertiary amine is improved and the subject compound useful as a surfactant for a detergent, etc., is produced in high concentration by reacting the tertiary amine with an aqueous solution of hydrogen peroxide in a specific solvent in the presence of a polybasic acid, etc.

(A) A tertiary amine of the formula [R1 is a 7-21C alkyl, etc.; R2 and R3 are each a 1-3C alkyl, etc.; (n) is 2-3], e.g. dodecylaminopropyldimethylamine is reacted with (B) an aqueous solution of hydrogen peroxide having 40-90 wt.% concentration in (C) a solvent selected from polyoxyalkylene ethers, organic esters, alcohols, etc., in the presence of (D) a polybasic acid having one or more hydroxy groups, such as citrie acid, or a salt thereof by using 10-60 wt.% component C and 0.1-5 wt.% component D based on the amount of the component A at 50-100°C to provide the objective compound such as dodecylaminopropyldimethylamine oxide in ≥45 wt.% concentration in the method for producing the alkanoylamidoalkylamine oxide.


Inventors:
Shibata, Keiji
Morishita, Mitsugi
Kawai, Takashi
Application Number:
JP1997000212852
Publication Date:
February 23, 1999
Filing Date:
August 07, 1997
Export Citation:
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Assignee:
KAO CORP
International Classes:
C11D1/75; C07C291/04; C11D1/75; C07C291/00; (IPC1-7): C07C291/04