| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing pyridine bases, which improves selectivity of picoline in the bases. SOLUTION: This method is to condens an aliphatic aldehyde and ammonia in the vapor phase in the presence of a solid acidic catalyst, preferably zeolite having a control index of 1 to 12, metal-impregnated silica-alumina catalyst or the like, to form a pyridine base, wherein the aliphatic aldehyde has an acrolein/aldehyde molar ratio of 2.5 or more. |
