N,n-dialkylpolyhydroxyalklamines

C - Chemistry – Metallurgy – 07 – C

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Details

C07C 215/10 (2006.01) A61Q 5/12 (2006.01) A61Q 17/04 (2006.01) A61Q 19/10 (2006.01) C04B 24/12 (2006.01) C04B 24/24 (2006.01) C09K 8/28 (2006.01) C11D 3/30 (2006.01)

Patent

CA 2525851

N,N-Dialkylpolyhydroxyalkylamines may be made by the reductive alkylation of an N-alkylpolyhydroxyalkylamine with an aldehyde or ketone, or with an equivalent compound, in the presence of a transition metal catalyst and hydrogen. The reaction is performed in a reaction solvent that contains at least 30 wt% of an organic solvent. The use of a sufficiently high proportion of an appropriate organic solvent in the reaction mixture reduces the amount of water present in the reaction mixture, and provides rapid reaction rates and high yields of the desired product. The N,N-dialkylpolyhydroxyalkylamines may be used in a wide variety of applications.

Il est possible d'obtenir des N,N-Dialkylpolyhydroxyalkylamines par l'alkylation réductive d'un N-alkylpolyhydroxyalkylamine au moyen d'un aldéhyde ou d'une cétone, ou d'un composé équivalent, en présence d'un catalyseur métallique de transition et d'hydrogène. La réaction se fait dans un solvant à réaction qui contient au moins 30 % d'équivalent en poids de solvant organique. L'utilisation d'une proportion suffisamment élevée d'un solvant organique approprié dans le mélange à réaction réduit la quantité d'eau présente dans celui-ci, et présente des taux de réaction rapides et un rendement élevé du produit désiré. On peut utiliser les N,N-dialkylpolyhydroxyalkylamines dans une vaste gamme d'applications.

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