Process for production of piperidine
AssigneeMitsubishi Petrochemical Co., Ltd.
InventorsTadashi Ayusawa, Tadamichi Aoki, Ryozo Hamana
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Abstract
Catalytic hydrogenation of furfurylamine or tetrahydrofurfurylamine in the presence of a cobalt-based catalyst into piperidine can be industrially carried out in an organic solvent, wherein addition of ammonia is not needed. It has been believed heretofore that the presence of ammonia in the hydrogenation is essential in such catalytic hydrogenation.
Claims12
A process for producing piperidine by catalytic hydrogenation in a liquid-phase of a starting amine selected from the group consisting of furfurylamine, tetrahydrofurfurylamine and mixtures thereof, characterized in that the catalyst used is a cobalt-based catalyst and in that the starting amine is in a state of dilution with an organic solvent.
Dependencies are inferred from the claim text.