PURPOSE: To efficiently obtain a quaternary ammonium salt with high biodegradability, capable of imparting excellent softness and smoothness, by reaction of a specific amidamine with a quaternarizing agent such as an alkyl halide.
CONSTITUTION: The quaternary ammonium salt of formula II (e.g. a compound of formula III) can be obtained by reaction of (A) an amidamine of formula I [R1 and R2 are each alkyl or hydroxyalkyl; R3 and R4 are each (OH- substituted) alkyl or alkenyl] with (B) a quaternarizing agent of formula R5X (R5 is 1-4C alkyl or benzyl; X is halogen, sulfate or 1-4C alkylsulfate) (e.g. methyl chloride, benzyl chloride). The compound of the formula I can be obtained by the following process: a diamine of formula IV is cyanoethylated using acrylonitrile to form an aminonitrile of formula V, which is then hydrogenated using a hydrogenating catalyst to produce a triamine of formula VI, which is then made to react with a fatty acid or its ester of formula R3COOR6 and/or R4COOR6 (R6 is H or alkyl).
| JP2002087949 | CLEANSING COSMETIC COMPOSITION |
| JP2003063927 | NON-AQUEOUS COSMETICS |
| JPH066537 | Description of the Invention: Keratosis Treatment Composition |
KATO TORU
TOMIFUJI TAKESHI
SOTODANI KOSHIRO
