甲烷磺酸盐的合成、表征及其催化酯化反应的性能 |
Synthesis and Characterization of Methane-Sulfonates and Their Catalytic Activities for Esterification |
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摘要: |
关键词: 氯乙酸异丙酯 甲烷磺酸盐 酯化反应 催化活性 |
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Abstract: Methane-sulfonate of copper, cobalt, zinc, lanthanide, praseodymium and neodymium are synthesized and characterized by FTIR and TGA. Methane-sulfonates are used as the catalysts in the esterification of chloroacetic acid with isopropanol. Catalytic activity of methane-sulfonates is studied and compared with other Lewis acids. Under the condition of 1.2/1 molar ratio of isopropanol to chloroacetic acid, 1% catalyst (molar percent of chloroacetic acid), 2.5h reaction time, 80~85℃ temperature and benzene as water-carrying agent. The experi-mental results showed that catalytic activity of Lanthanide methane-sulfonate was the best, the yield of isopropyl chloroacetate reaches 88.7%. Copper methane-sulfonate can be reused for three times without distinct loss of catalytic activity. |
Keywords: isopropyl chloroacetate methane-sulfonate esterification catalytic activity |
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王 敏,田建军,刘立军,姜 恒,宫 红,苏婷婷.甲烷磺酸盐的合成、表征及其催化酯化反应的性能[J].无机化学学报,2003,19(7):731-734. |
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