Various tetradentate and tridentate ligands such as salophane, bishydrazone, bisbenzimidazolyl pyridine and isonicotinohydrazide have been prepared. Transition metal complexes of these ligands with Cu, Ni and Fe have been further synthesized and characterized by UV–vis, IR, NMR and CHN analysis. Catalytic activity of the metal complexes was tested for the cross coupling of diarylchalcogenide with arylboronic acid in DMSO as solvent in presence of a base. These non-precious metal complexes catalysed cross coupling reactions smoothly in shorter reaction time compared to earlier reports with comparable yields.

中文翻译：

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芳基硼酸和二苯基二硒化物在非贵重过渡金属（Fe，Cu和Ni）络合物上的C-Se交叉偶联

已经制备了各种四齿和三齿配体，例如Salophane，双hydr，双苯并咪唑基吡啶和异烟酰肼。这些配体与铜，镍和铁的过渡金属络合物已被进一步合成，并通过紫外可见，红外，核磁共振和CHN分析进行了表征。测试了金属配合物在二甲基亚砜中在碱存在下作为溶剂在DMSO中与芳基硼酸的交叉偶联的催化活性。与较早的报道相比，这些非贵金属络合物能够在更短的反应时间内顺利地催化交叉偶联反应，且收率相当。