Reactions of halogenomethanes in the vapour phase. Part 5. The reactions of imidazolines, anils, and 1-methylimidazole with chloroform at 550 °C, and a comparison with their liquid-phase reactions with trichloroacetate ion or hexachloroacetone and base
作者:Reginald E. Busby、Mohammad A. Khan、Mohammad R. Khan、John Parrick、C. J. Granville Shaw
DOI:10.1039/p19800001431
日期:——
The vapour-phase reactions of Imidazolines and anils with chloroform at 550 °C are compared with their liquidphase reactions in the presence of hexachloroacetone and base or upon thermolysis with trichloroacetate ion. In the vapour-phase reactions Imidazolines, unlike imidazoles, gave non-chlorinated pyrimidines, and 1-methylimidazole gave 2-cyanopyrrole and the four 3-chlorocyanopyridines.
将
咪唑啉和茴香在550°C下与
氯仿的气相反应与在
六氯丙酮和碱存在下或与
三氯乙酸根离子热解后的液相反应进行了比较。在气相反应中,
咪唑啉与
咪唑不同,生成的非
氯化
嘧啶,1-甲基
咪唑生成的2-
氰基
吡咯和四个3-
氯氰基吡啶。