High temperature process for selective production of 3-methylpyr

Details High temperature process for selective production of 3-methylpyr High temperature process for selective production of 3-methylpyr

1991-01-04

1992-09-22

Cintins, M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546252, C07D21309

Patent

active

051498162

ABSTRACT:
A process for the selective production of 3-methylpyridine in high yield comprising the step of contacting a vaporized feed stream containing 2-methyl-1,5-pentanediamine with a metal-oxide catalyst of other than an alkali metal at a temperature of about 500.degree.-600.degree. C. for a contact time of less than about 30 seconds. The catalyst may be on a suitable heterogeneous support, and additives in the feed stream may include 3-methylpiperidine as well as water, hydrogen, ammonia, or nitrogen or some other inert gas. A fluid-bed reactor is preferred, with recycling of by-product and continuous effective runs without catalyst regeneration being accomplished at the stated temperatures.

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