A method for producing a heterocyclic nitrile

摘要

A method for producing a heterocyclic nitrile in high yield which comprises a gas-phase catalytic reaction of a heterocyclic carboxylic acid or an ester thereof with ammonia in the presence of a catalyst comprising an oxide of at least one element selected from copper and zinc, and an effective method for producing a heterocyclic aldehyde, using as a starting material the heterocyclic nitrile thus obtained, are provided.