4-Diakylamino- and 4,5-bis(dialkylamino)-o-phenylenediamines are conveniently prepared by treatment of isobenzimidazole-2-spirocyclohexane with secondary amines, followed by reductive hydrolysis; introduction of other nucleophiles by this method and examples of using these novel phenylenediamines in heterocyclic syntheses are also described.
通过用仲胺处理异
苯并咪唑-2-螺
环己烷,然后还原
水解,可方便地制备4-二烷基
氨基-和4,5-双(二烷基
氨基)-
邻苯二胺。还描述了通过这种方法引入其他亲核试剂以及在杂环合成中使用这些新型
苯二胺的实例。