5-Aryl-2-phenylpyrazolo[1,5-c]pyrimidine-7(6H)-thiones have been synthesized by the reaction of 1,5-diaryl-4-pentyne-1,3-diones with thiosemicarbazide and their reactions were studied. The pyrazolopyrimidinethiones give with certain electrophiles the respective 3-substituted 7-thiones. Their oxidation affords the corresponding disulfide. Moreover, they can be converted to the corresponding pyrazolopyrimidinones
5-Aryl-2-phenylpyrazolo[1,5-c]pyrimidine-7(6H)-thiones 已通过 1,5-diaryl-4-pentyne-1,3-diones 与
氨基
硫脲反应合成,它们的反应是学习了。
吡唑并
嘧啶硫酮与某些亲电子试剂产生相应的 3-取代 7-
硫酮。它们的氧化提供相应的二
硫化物。此外,它们可以通过与碱性
过氧化氢反应转化为相应的
吡唑并
嘧啶酮。上述化合物的结构由它们的光谱特征确定。