Improved process for synthesizing alkylated arylamines

Details Improved process for synthesizing alkylated arylamines Improved process for synthesizing alkylated arylamines

C - Chemistry, Metallurgy

07

C

C07C 209/68 (2006.01) B01J 27/10 (2006.01) B01J 31/14 (2006.01) B01J 35/00 (2006.01)

Patent

CA 2610401

An improved process and novel catalyst system for alkylating arylamines generally comprising the combination of an arylamine and an alkylating agent in the presence of a trialkyl aluminum compound and a hydrogen halide. The improved process and new catalyst system allows for higher total conversion of the arylamine feedstock without sacrificing substitution product selectivity and also allows for the reaction of recycled alkylene feedstock.

L'invention porte sur un procédé amélioré et un nouveau système de catalyseurs servant à la production d'arylamines alkylées consistant de manière générale à combiner une arylamine et un agent d'alkylation en présence d'un composé de trialkylaluminium et d'un halogénure d'hydrogène. Ledit procédé et le nouveau système de catalyseurs permettent une meilleure conversion totale de l'apport d'arylamine sans nuire à la sélectivité du produit de substitution, tout en permettant la réaction de l'apport d'alkylène recyclé.

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