过氧化氢氧化苯甲醛合成苯甲酸的研究 |
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作者姓名: | 冯冬然 张光霞 殷利河 边延江 |
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作者单位: | 廊坊师范学院,河北,廊坊,065000 |
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摘 要: | 在无溶剂、无相转移催化荆条件下,以过渡金属离子作为催化剂,碳酸钠作为碱性添加物,30%过氧化氢作为氧源,在常温搅拌下来催化氧化苯甲醛制备苯甲酸。最佳实验条件为:n(苯甲醛)/n(碳酸钠)/n(催化剂),n(过氧化氢)为100:3:0.5:196,反应时间为1h,苯甲酸产率达84.2%。
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关 键 词: | 苯甲酸 过氧化氢 常温搅拌 碱性添加物 催化 |
Oxidation of Benzaldehyde to Benzoic Acid with H2O2 |
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Authors: | FENG Dong-ran ZHANG Guang-xia YIN Li-he BIAN Yan-jiang |
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Institution: | FENG Dong-ran ,ZHANG Guang-xia, YIN Li-he, BIAN Yan-jiang |
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Abstract: | Benzaldehyde can be directly oxidized to benzoic acid with 30% H2 02 in the presence of transition metal ion without any phase transfer catalyst and organic solvent. The optimum molar ratio of benzaldehyde, Na2CO3, transition metal ion, H2 02 was 100: 3 : 0.5 : 196. The mixture was stirred at room temperature for lh giving benzoic acid in yield of 84.2%. |
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Keywords: | benzoic acid hydrogen peroxide stir at room temperature alkaline additive catalysis |
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