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A planar tetradentate dinuclear ligand, 3, 5-bis(2-pyridyl) pyrazole, was synthesized by a three-step reaction of esterification, condensation and addition.

以2-啶甲酸为原料,经酯化、缩合、加成合成了平面四齿体3,5-二(2-啶基)

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Among of them, indoles and pyrazoles are of great importance and they are also hotspots that organic chemists are researching.

哚和是含氮有机杂环化合物的两大类型,它们也是有机化学家研究的热点问题。

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