A simple and efficient synthesis of (substituted ylidene)(2‐oxoindolylidene)thiocarbohydrazones and bis(2‐oxoindolylidene)urea was achieved by the reaction of (substituted ylidene)thiocarbonohydrazides with isatylidene malononitrile. Rational for this conversation involving the nucleophilic additions on the dicyanomethylene carbon atom is presented. The structures of the products have been confirmed
通过(取代的亚烷基)
硫代碳酰
肼与
异亚丙基丙二腈的反应,实现了(取代的亚烷基)(2-氧代亚
吲哚基)
硫代碳酰
肼和双(2-氧代亚
吲哚基)
脲的简单有效合成。提出了涉及在二
氰基亚甲基碳原子上的亲核加成的这种对话的合理性。产品的结构已通过光谱和单晶X射线分析得到确认。