4-methylpyridine
Sign in to saveAlso known as 4-Mepy, 4-picoline, p-picoline, p-methylpyridine, gamma-picoline
4-Methylpyridine is the organic compound with the formula CH3C5H4N. It is one of the three isomers of methylpyridine. This pungent liquid is a building block for the synthesis of other heterocyclic compounds. Its conjugate acid, the 4-methylpyridinium ion, has a pKa of 5.98, about 0.7 units above that of pyridine itself.
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Encyclopedic overview
3 sectionsContents
- Production and uses
- Toxicity
- References
4-Methylpyridine is the organic compound with the formula CH3C5H4N. It is one of the three isomers of methylpyridine. This pungent liquid is a building block for the synthesis of other heterocyclic compounds. Its conjugate acid, the 4-methylpyridinium ion, has a pKa of 5.98, about 0.7 units above that of pyridine itself.
==Production and uses== 4-Methylpyridine is both isolated from coal tar and is synthesized industrially. It forms via the reaction of acetaldehyde and ammonia in the presence of an oxide catalyst. The method also affords some 2-methylpyridine.
Excerpted from Wikipedia’s “4-methylpyridine” article, available under the CC BY-SA 4.0 licence.