Method for separating an azepine derivative from a mixture...

Details Method for separating an azepine derivative from a mixture... Method for separating an azepine derivative from a mixture...

C - Chemistry, Metallurgy

07

D

C07D 223/12 (2006.01) B01D 3/00 (2006.01) B01D 3/14 (2006.01) C07C 209/48 (2006.01) C07C 209/84 (2006.01) C07C 209/86 (2006.01) C07C 253/34 (2006.01) C07D 223/04 (2006.01) C07C 211/12 (2006.01) C07C 255/24 (2006.01)

Patent

CA 2323617

The invention relates to a method for separating by distillation all or part of an azepine derivative (III) selected from the group consisting of amino hexylidenimine, tetrahydroazepine, hexylhexahydroazepine and amino hexylhexahydroazepine, from a mixture (II) containing an azepine derivative (III) and an amine (I). The invention is characterized in that the distillation is carried out at an overhead temperature of between 160 and 250 ~C.

L'invention concerne un procédé pour séparer par distillation une partie ou la totalité d'un dérivé d'azépine (III) sélectionné dans le groupe comprenant l'aminohexylidène-imine, la tétrahydroazépine, l'hexylhexahydroazépine et l'aminohexylhexahydroazépine, ledit dérivé étant contenu dans un mélange (II) renfermant un dérivé d'azépine (III) et une amine (I). Ledit procédé est caractérisé en ce que la distillation est effectuée à une température de tête comprise entre 160 et 250 ·C.

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