Patent ID: 6897320

Claim:
A process for the simultaneous production of 2,6-divinylpyridine and 2-methyl-6-vinylpyridine comprising reacting 2,6-lutidine with formaldehyde in a catalytic zone containing a modified zeolite catalyst, the temperature of the catalytic zone being in the range of 200 to 450° C., the reaction being carried out at a weight hourly space velocity in the range of 0.25 to 1.0 h +1 , the molar ratio of 2,6-lutidine to formaldehyde being 1:1 to 1:4, and wherein the modified zeolite catalyst comprises a modified ZSM-5 pentasil type zeolite catalyst, and wherein the modified zeolite catalyst is a ZSM-5 catalyst modified by an alkali or alkaline earth metal ion selected from the group consisting of Lit + , Na + , K + , Rb + , CS + , Mg 2+ , Ca 2+ , Sr 2+ , Ba 2+ .