PRODUCING PYRIDINES AROMATICALLY OR HETEROAROMATICALLY SUBSTITUTED IN THE 2 POSITION

摘要

The present invention provides 3 process for producing pyridines which are aromatically or heteroaromatically substituted in the 2 position, in which aliphatic-aromatic or aliphatichetero-aromatic ketones are reacted at temperatures from approximately 250 to 550.degree.C with aliphatic oxo compounds, which have an unsaturated carbon bond adjacent to the oxo group, in the gas phase in the presence of ammonia and in the presence of a catalyst having dehydrating and dehydrogenating properties.