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。