【摘要】 探索了以5-羟甲基糠醛为原料,用高锰酸钾法氧化制备标题化合物。以126 mg(1 mmol)5-羟甲基糠醛为定量,考察了高锰酸钾用量、碱溶液的浓度和反应时间对反应的影响。当高锰酸钾用量为379.2 mg(2.4 mmol),碱溶液的浓度为2.2 mol/L,反应时间为10 min时,得到标题化合物收率为76.3%。研究结果表明,高锰酸钾法制备标题化合物,是一种不用贵金属催化剂,在室温下就可反应的简便方法。更多还原

【Abstract】 Furan-2,5-dicarboxylic acid was synthesized through oxidation of 5-hydroxymethyl-furfural by potassium permanganate.The influence of the reaction conditions,such as the sodium hydroxide concentration in the reaction system,the reactant/permanganate ratio,and the reaction time,on the yield of furan-2,5-dicarboxylic acid,was investigated.The test results showed that the optimal reaction conditions were realized in an acidic condition,when the sodium hydroxide concentration in the reaction system was 2.2 mol/L,the reactant/permanganate ratio was 2.4∶1,and the reaction time was 10 min,with the product yield reaching 76.3%.This method for producing furan-2,5-dicarboxylic acid using potassium permanganate can be carried out under mild conditions,without employing an expensive catalyst.更多还原