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用1-芳酰基-5-苯基-2-硫代双脲与溴进行氧化成环反应制备了九个新的5-芳酰氨基-2-苯基-2H-1,2,4-噻二唑-3-酮,相应的1-芳酰基-5-苯基-2-硫代双脲可以通过苯基脲与酰基异硫氰酸酯加成制得。
Nine novel 5-aroylamino-2-phenyl-2H-1,2,4-thiazoles were prepared by the oxidation of 1-aroyl-5-phenyl-2-thiourea with bromine The oxadiazol-3-one, the corresponding 1-aroyl-5-phenyl-2-thioureas, can be obtained by addition of phenylurea to acyl isothiocyanates.