作者:Paul E. Gagnon、Jean L. Boivin、René J. Paquin
DOI:10.1139/v53-135
日期:1953.11.1
3-diphenyl 5-pyrazolones monosubstituted in position 4 by alkyl radicals R (R = H, CnH2n+1(n-1 to 10), and C6H5CH2.). The dissociation constants of the pyrazolones were determined by potentiometric titrations. A study was made of the ultraviolet absorption spectra in both neutral and acid medium and of the infrared absorption spectra. X-ray powder diffraction patterns and data of the pyrazolones were obtained
通过正烷基卤化物与苯甲酰乙酸乙酯缩合获得的单取代苯甲酰乙酸酯与肼和苯肼反应,得到 3-苯基和 1,3-二苯基 5-吡唑啉酮在 4 位被烷基 R 单取代(R = H,CnH2n +1(n-1 到 10)和 C6H5CH2。)。吡唑啉酮的解离常数通过电位滴定法测定。对中性和酸性介质中的紫外吸收光谱和红外吸收光谱进行了研究。获得了吡唑啉酮的 X 射线粉末衍射图和数据。