PROCESS FOR PREPARING 3-METHYLPIPERIDINE AND 3-METHYLPYRIDINE BY CATALYTIC CYCLISATION OF 2-METHYL-1,5-DIAMINOPENTANE

摘要

In a process for preparing 3-methylpiperidine or 3-methylpyridine from 2-methyl-1,5-diaminopentane in the gaseous phase, the initial product is made to flow over catalysts. In the first step, 3-methylpiperidine is produced, and if required 3-methylpyridine is produced in a second step.