Disclosed is a process comprising (1) dehydrocyclization of 2-methylglutaronitrile over Pt or Pd based catalysts to make a mixture containing 3-methylpyridine and lesser amounts of 3-methylpiperidine and (2) reacting such a mixture with NH.sub.3 and O.sub.2 over certain oxide catalysts containing P, V and Mo to obtain 3-cyanopyridine.

É divulgado um processo que compreende (1) o dehydrocyclization de 2-methylglutaronitrile sobre a pinta ou catalizadores baseados paládio para fazer uma mistura que contem 3-methylpyridine e poucas quantidades de 3-methylpiperidine e (2) reagindo tal mistura com catalizadores do óxido do excesso NH.sub.3 e O.sub.2 determinados que contêm P, V e Mo para obter 3-cyanopyridine.
 
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