phenylhydrazine and semicarbazide. 4-Benzyl-3-amino-1-phenyl-5-pyrazolone has been synthesized and its properties have been compared with those of the corresponding 2-phenylpyrazolone derivative. The ultraviolet absorption spectra of several pyrazolones have been determined.
通过将单取代或双取代的
氰基
乙酸酯与
肼、苯
肼和
氨基
脲反应制备了 25 种
吡唑啉酮。合成了 4-Benzyl-3-amino-1-phenyl-5-pyrazolone,并与相应的 2-phenylpyrazolone 衍
生物进行了性能比较。已经测定了几种
吡唑啉酮的紫外吸收光谱。