Key intermediates demonstrating a non-obvious reaction pathway leading to 2-aminobenzene-1,3-dicarbonitriles from enones have been isolated and characterised in the reaction between (E)-4-phenyl-3-butene-2-one and propanedinitrile in a basic hydro-alcoholic medium. (E)-4-苯基-3-丁烯-2-酮与三个丙烷衍生物反应生成6-氨基-2-亚氨基双环[2.2.2] -5-辛烯-1,3,3,5-四碳腈体系通过消除1,1,1-三甲基甲烷的钠盐而生成取代的环己二烯。进一步的氧化导致最终的2-氨基苯-1,3-二腈。与以前针对类似系统提出的方