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在乙酸 -乙酸酐溶液 (含乙酸酐 1 0 % )中 ,由芳香醛和硫代巴比妥酸经Knoevenagel缩合反应 ,制备了 5 -亚烃基硫代巴比妥酸 ,产率为 6 2 .7%～ 95 %。产物结构经1HNMR、IR及UV确证
In the acetic acid - acetic anhydride solution (containing 10% acetic anhydride), the 5 - alkylene thiobarbituric acid was prepared by Knoevenagel condensation of aromatic aldehyde and thiobarbituric acid with a yield of 62. 7% ~ 95%. The product structure was confirmed by 1HNMR, IR and UV