Continuous method for producing fatty acid amides

Details Continuous method for producing fatty acid amides Continuous method for producing fatty acid amides

C - Chemistry, Metallurgy

07

C

C07C 231/02 (2006.01) C07C 233/05 (2006.01) C07C 233/09 (2006.01) C07C 233/36 (2006.01)

Patent

CA 2720331

The invention relates to a continuous method for producing fatty acid amides, according to which at least one fatty acid of formula R3-COOH (I), wherein R3 is an optionally substituted aliphatic hydrocarbon radical, is reacted with at least one amine of formula HNR1R2 (II), wherein R1 and R2 are independently hydrogen or a hydrocarbon radical comprising between 1 and 100 C atoms, to form an ammonium salt, and said ammonium salt is then reacted to form a fatty acid amide, under microwave irradiation in a reaction pipe, the longitudinal axis of the pipe being oriented in the direction of propagation of the microwaves of a monomode microwave applicator.

L'invention concerne un procédé de production d'amides d'acide gras. Selon lequel au moins un acide gras de formule (I) R3-COOH (I), où R3 désigne un reste hydrocarbure aliphatique éventuellement substitué est mis à réagir avec au moins une amine de formule (II) HNR1R2 (II) où R1 et R2 désignent indépendamment l'un de l'autre hydrogène ou un reste hydrocarbure ayant entre 1 et 100 atomes de C, pour former un sel d'ammonium. Ce sel d'ammonium est ensuite mis à réagir par exposition à des rayonnements de micro-ondes dans un tube de réaction dont l'axe longitudinal se situe dans le sens de propagation des micro-ones d'un applicateur de micro-ondes monomode, pour former de l'amide d'acide gras.

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