引用本文:
廖德仲, 毛立新, 何节玉. 硫酸锌催化合成草酸二异戊酯[J]. 应用化学,
2004, 21(6): 644-645.
Citation: LIAO De-Zhong, MAO Li-Xin, HE Jie-Yu. Synthesis of Di-isoamyl Oxalate Catalyzed by Zinc Sulfate[J]. Chinese Journal of Applied Chemistry, 2004, 21(6): 644-645.
Citation: LIAO De-Zhong, MAO Li-Xin, HE Jie-Yu. Synthesis of Di-isoamyl Oxalate Catalyzed by Zinc Sulfate[J]. Chinese Journal of Applied Chemistry, 2004, 21(6): 644-645.
硫酸锌催化合成草酸二异戊酯
English
Synthesis of Di-isoamyl Oxalate Catalyzed by Zinc Sulfate
Abstract:
The infrared spectrum of pyridine adsorbed on surface of ZnSO4·7H2O indicates it exhibits Lewis acid centers as a catalyst. Experiments showed that it had good catalytic performance in esterification of oxalic acid with iso-amyl alcohol with ester yield being 97.5% in following conditions:the molar ratio of isoamyl alcohol to oxalic acid 2.8, catalyst amount 7.4%(based on the mass of oxalic acid), reaction temperature 145℃, reaction time 1.5 h. The catalyst could be used repeatedly for six times.
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Key words:
- zinc sulfate
- / di-isoamyl oxalate
- / esterification
- / catalytic activity
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