Process for producing [1,4'] bipiperidinyl-1'-carbonyl...

Details Process for producing [1,4'] bipiperidinyl-1'-carbonyl... Process for producing [1,4'] bipiperidinyl-1'-carbonyl...

C - Chemistry, Metallurgy

07

D

C07D 211/58 (2006.01)

Patent

CA 2591071

The present invention is related to a process for the preparation of [1,4'] bipiperidinyl-1' -carbonyl chloride or its hydrochloride using methylene chloride as a solvent in the reaction of 4-piperidinopiperidine with phosgene and removing the reaction solvent by using an additional distillation solvent to raise the distillation temperature.

Procédé de production de chlorure de[1,4'] bipipéridinyl-1'-carbonyl ou d'hydrochlorure correspondant utilisant du chlorure de méthylène comme solvant dans la réaction entre 4-pipéridinopipéridine et phosgène, avec élimination du solvant de réaction par le biais d'un solvant de distillation additionnel permettant d'élever la température de distillation.

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