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研究了2-甲基吡啶和2-甲基喹啉在鐵催化劑上的破壞加氫轉化,並分別對它們的加氫生成物的强鹼性分進行了分離鑑定.在生成物組成的分離鑑定基礎上,提出了2-甲基吡啶的破壞加氫轉化歷程,首次發現一種新型反应,脫胺基環化反應。比較2-甲基喹啉同2-甲基吡啶的加氫轉化結果,說明苯環的引入增加了反應活泼性,加氫容易;同時前者加氫生成的四氫喹啉較後者加氫生成的(口派)嗶啶不易分解.比較2-甲基喹啉同喹啉的轉化結果,證明a位置上引入甲基有利於苯環的加氫.在所試駿的破壞加氫條件下,2-甲基吡啶和2-甲基喹啉都不易脫去甲基. 對2-甲基吡啶、喹啉、2-甲基喹啉的結構對它們加氫轉化的影響作了解釋.
The destructive hydroconversion of 2-methylpyridine and 2-methylquinoline on iron catalysts was studied, and the strong basic components of their hydrogenated products were isolated and identified respectively. Based on this, the destructive hydroconversion of 2-picoline has been proposed, and a novel reaction and deamino cyclization reaction have been found for the first time. The results of hydroconversion of 2-methylquinoline with 2-methylpyridine show that the introduction of benzene ring increases the reactivity and makes it easier to hydrogenate. Meanwhile, the former hydrogenated tetrahydroquinoline is more hydrogenated than the latter (Port) beeping easy to decompose.Comparison of 2-methylquinoline with quinoline conversion results prove that the introduction of methyl a position is conducive to the hydrogenation of benzene ring in the experimental destruction of hydrogenation conditions, 2 - methylpyridine and 2-methylquinoline are not easy to demethylation of methyl.For 2-picoline, quinoline, 2-methylquinoline structure of their hydroconversion explained.