Cyclization of 4,5-Diamino Pyrazole Derivatives and Their Antibacterial Activities
作者:Hala F. Rizk、Mahmoud A. EI-Badawi、Seham A. Ibrahim、Mohamed A. EI-Borai
DOI:10.1002/cjoc.201180265
日期:2011.7
yrazoles 4a–4c was reported. The different cyclization reactions were carried out with chalcone, 2‐mercaptoacetic acid and p‐anisialdehyde, ethyl chloroformate, glyoxal and thiourea to afford different N and S containing heterocycles. The reaction conditions were compared by conventional heating and microwave irradiation. The structures of the cyclization products were determined by analytical and
据报道,可以方便地合成中间体4,5-二氨基-3-芳基-1-苯基吡唑4a - 4c。用查尔酮,2-巯基乙酸和对苯二甲醛,氯甲酸乙酯,乙二醛和硫脲进行不同的环化反应,得到不同的含N和S的杂环。通过常规加热和微波辐射比较反应条件。通过分析和光谱数据确定环化产物的结构。筛选了所有合成化合物的体外抗菌活性。