pyrazole

The pyrazoles ramification containing dithioether is synthesized by one-step method and characterized by H-NMR, IR and UV-Vis spectra.

并采用氢核磁共振，红外光谱和紫外吸收光谱等手段进行表征。

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-吡啶甲酸为原料，经酯化、缩、加平面四齿双核体3，5-二（2-吡啶基）吡。

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

和吡是含氮有机杂环化物的两大类型，它们也是有机化学家研究的热点问题。