SYNTHESIS OF 5-(4'-AROYL)-ARYLOXY METHYL-4H-(1,2,4)-TRIAZOLIN-3-THIOL AND THEIR BIOLOGICAL ACTIVITY
作者:B.S. Sudha、S. Shashikanth、Shaukath Ara Khanum
DOI:10.1515/hc.2004.10.1.85
日期:2004.1
5-(4'-aroyl)-aryloxy methyl-4H-1,2, 4)-triazolin-3-thiols were synthesized by using substituted phenyl benzoates as the starting material. Phenyl benzoates on Fries rearrangement gave p-hydroxy benzophenones which on treatment with ethyl bromoacetate in presence of anhydrous potassium carbonate and dry acetone gave corresponding benzoyl phenyloxy esters in excellent yield. Esters were refluxed with
5-(4'-芳酰基)-芳氧基甲基-4H-1,2,4)-三唑啉-3-硫醇以取代苯甲酸苯酯为起始原料合成。Fries 重排苯甲酸苯酯得到对羟基二苯甲酮,在无水碳酸钾和无水丙酮存在下用溴乙酸乙酯处理得到相应的苯甲酰苯氧基酯,产率极好。在乙酸酐存在下将酯与氨基硫脲回流,得到环化的标题化合物。它们的元素分析和光谱数据为合成化合物的结构提供了支持。筛选新合成的化合物的抗菌和抗真菌活性。关键词:芳酰基芳氧基酯,三唑啉-3-硫醇。