| [bmim]PF_6促进氨基硫脲和甲酸的缩合反应 |
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| 引用本文： | 许邦莲,乐长高.[bmim]PF_6促进氨基硫脲和甲酸的缩合反应[J].精细石油化工,2007,24(6):5-7. |
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| 作者姓名： | 许邦莲 乐长高 |
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| 作者单位： | 东华理工大学,江西,抚州,344000 |
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| 基金项目： | 江西省自然科学基金
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江西省教育厅科研项目 |
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| 摘 要： | 以离子液体1-丁基-3-甲基咪唑六氟磷酸盐(bmim]PF_6)为反应促进剂和溶剂,对氨基硫脲与甲酸的缩合反应进行了研究,最佳反应条件为:n(氨基硫脲):n(甲酸)=1:2.0,反应时间2 h,反应温度70℃,离子液体用量2 mL,收率97.2%。与无机酸催化氨基硫脲与甲酸的缩合反应相比,该法反应条件温和,反应时间短,收率高,易分离,且离子液体可循环使用。
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| 关 键 词： | 离子液体 [bmim]PF_6 氨基硫脲 2-氨基-1，3，4-噻二唑 |
| 收稿时间： | 2007-06-15 |
| 修稿时间： | 2007-10-14 |
CONDENSATION OF AMINOTHIOUREA AND FORMIC ACID PROMOTED BY [bmim]PF6 |
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| Xu Banglian,Le Zhanggao.CONDENSATION OF AMINOTHIOUREA AND FORMIC ACID PROMOTED BY [bmim]PF6[J].Speciality Petrochemicals,2007,24(6):5-7. |
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| Authors: | Xu Banglian Le Zhanggao |
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| Abstract: | Condensation of aminothiourea and formic acid was studied with ionic liquidbmim]PF_6 as both accelerant and solvent.The optimal reaction conditions were found as follows:the molar ratio of aminothiourea to formic acid 1:2.0,reaction time 2 h,reaction temperature 70℃,2 mL bmim]PF_6.Under these conditions,the yield was up to 97.2%.Compared with the condensation of aminothiourea and formic acid catalyzed by inorganic acid,the reaction conditions were milder,the re- action time was shorter and the yield was higher.The products could be easily separated from the ion- ic liquid and the ionic liquid could be used repeatedly. |
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| Keywords: | ionic liquid [bmim]PF_6 aminothiourea 2-amino-1 3 4-thiodiazole |
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