Process for preparing n-alkyl polyhydroxy amines and fatty...

Details Process for preparing n-alkyl polyhydroxy amines and fatty... Process for preparing n-alkyl polyhydroxy amines and fatty...

C - Chemistry, Metallurgy

07

C

C07C 233/17 (2006.01) C07C 213/00 (2006.01) C07C 213/02 (2006.01) C07C 215/10 (2006.01) C07C 231/02 (2006.01) C07C 233/18 (2006.01) C07C 233/20 (2006.01) C07H 5/06 (2006.01) C11D 1/52 (2006.01)

Patent

CA 2092192

Amines such as methyl amine are reacted with materials such as reducing sugars in hydroxy solvents such as methanol to prepare N-alkyl polyhydroxy amines. Accordingly,glucose is reacted with methyl amine and the resulting adduct is hydrogenated to yield N-methylglucamine. The N-alkyl polyhydroxyamines can be subsequently reacted with fatty esters to provide polyhydroxy fatty acid amides useful as detersive surfactants. Thus, detersive surfactants are available from non-petrochemical precursors such as sugars and sugar sources such as corn syrup, and fatty acid esters derivable from various fats and oils.

On fait réagir des amines, comme la méthylamine, avec des produits comme les sucres réducteurs, dans des solvants hydroxylés, notamment le méthanol, pour préparer des N-alkylpolyhydroxyamines. On fait donc réagir le glucose avec la méthylamine; le produit d'addition obtenu est hydrogéné pour donner la N-méthylglucamine. On peut ensuite faire réagir les N-alkylpolyhydroxyamines avec des esters gras pour former les amides d'acides gras polyhydroxylés, utiles comme surfactifs détersifs. Il est ainsi possible d'obtenir des surfactifs détersifs à partir de précurseurs non pétrochimiques, comme les sucres ou des sources de sucres, notamment le sirop de maïs, et d'esters d'acides gras issus de diverses graisses et huiles.

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