Process for preparing amide acetals

C - Chemistry – Metallurgy – 07 – D

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C07D 498/04 (2006.01)

Patent

CA 2547519

A process for preparing amide acetals represented in Formula I comprising dehydrating a reactant mixture comprising reactants selected from a group consisting of N-acyl dialkanol amines, O-acyl dialkanol amines and mixtures thereof Formula (I) wherein n and m are independently 2 or 3; p is 1, 2 or 3; R1 and R2 can be the same or different and are each independently hydrogen, a linear or branched alkyl, cycloalkyl or aryl group with 1-20 C atoms; R represents hydrogen, a branched or linear alkyl, cycloalkyl, aryl or an alkenyl group with 1-20 C-atoms, each may have one or more substituents.

La présente invention concerne un procédé pour préparer des acétals d'amide représentés par la formule (I), qui consiste à déshydrater un mélange réactionnel comprenant des réactifs choisis dans le groupe formé par des amines de N-acyl dialcanol, des amines de O-acyl dialcanol et des mélanges de celles-ci. Formule (I) dans laquelle n et m valent indépendamment 2 ou 3, p vaut 1, 2 ou 3, R1 et R2 peuvent être identiques ou différents et représentent chacun indépendamment hydrogène, un groupe alkyle, cycloalkyle ou aryle linéaire ou ramifié avec 1-20 atomes de C, R représente hydrogène, un groupe alkyle, cycloalkyle, aryle ou alcényle linéaire ou ramifié avec 1-20 atomes de C, chacun pouvant avoir un ou plusieurs substituants.

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