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。