关键词: 乙炔, 乙腈, 2-甲基吡啶, 催化, 合成

Abstract:

This paper proposes a novel synthesis technology of 2-methylpyridine from acetylene and acetonitrile, and determines the optimal synthesis conditions by experiments. The results indicate that 2-methylpyridine with a yield of 50.88% can be prepared in the optimal conditions, that is, an acetylene pressure of 1.1 MPa, an acetylene dosage of 7.332g, a reaction temperature of 180℃, an organic cobalt catalyst dosage of 200mg and a reaction period of 12 h, that 2-methylpyridine with a purity of more than 98% can be obtained ＇after the filtration and batch distillation of the reacted solution mixture, and that the proposed technology is potentially applicable in industry due to its simple operation and high yield.

Key words: acetylene, acetonitrile, 2-methylpyridine, catalysis, synthesis