Vicarious nucleophilic substitution using chloromethyl phenyl sulfone was applied to pyridinium and 1, 2, 3-triazinium dicyanomethylides to afford corresponding 4-substituted pyiridinium and 5-substituted triazinium dicyanomethylides, respectively. They were readily transformed to 4-phenylsulfonylmethylpyridines and 5-phenylsulfonylmethyltriazines by radical reaction.
使用
氯甲基苯砜对
吡啶和 1,2,3-三嗪二
氰基甲基化物进行了取代亲核取代,分别得到了相应的 4-取代
吡啶和 5-取代三嗪二
氰基甲基化物。通过自由基反应,它们很容易转化为 4-苯磺酰
甲基吡啶和 5-苯磺酰甲基三嗪。