Here we present the new EWG-substituted indole derivatives, namely 2-((5-(1-methyl-2-phenyl-1 H-indol-3-yl)thiophen-2-yl)methylene) malonitrile (), 2-((5-(1-methyl-2-phenyl-1 H-indol-3-yl)furan-2yl)methyl)malonitrile() and 2-((4-(1-methyl-2-phenyl-1 H-indol-3-yl)benzylidene) malonitrile () was synthesized by using Sonogashira coupling, electrophilic cyclization, Suzuki-Miyaura coupling and condensation reactions. The isolated yields were obtained as and yields, respectively. Cyclic voltammetry(CV), chronoamperometry (CA), and electrochemical impedance spectroscopy (EIS) were used for the electrochemical measurements to observe the electrocatalytic behavior of and . The results exhibited that the highest-performance organic-based catalyst was 2.601 mA/cm (0.073 mA/mg) for which could be a good candidate as a metal-free electrocatalyst for hydrazine electrooxidation.

中文翻译：

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氰基取代吲哚衍生物作为有机阳极催化剂的肼电氧化性能


在这里，我们提出了新的EWG取代的吲哚衍生物，即2-((5-(1-甲基-2-苯基-1H-吲哚-3-基)噻吩-2-基)亚甲基)丙二腈()，2- ((5-(1-甲基-2-苯基-1H-吲哚-3-基)呋喃-2基)甲基)丙二腈()和2-((4-(1-甲基-2-苯基-1H-采用Sonogashira偶联、亲电环化、Suzuki-Miyaura偶联和缩合反应合成了吲哚-3-亚苯亚甲基)丙二腈()，分离产率分别为循环伏安法(CV)和计时安培法(CA)。 ，并使用电化学阻抗谱（EIS）进行电化学测量，观察 和 的电催化行为。结果表明，有机基催化剂的最高性能为 2.601mA/cm（0.073mA/mg）。作为肼电氧化的无金属电催化剂的良好候选者。