| Transesterification Reaction of Dimethyl Terephthalate by 2-Ethylhexanol in the Presence of Heterogeneous Catalysts under Solvent-free Condition |
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| 作者姓名： | FIRDOVSI Seyidov Tataroglu YAGOUB Mansoori PARVIN Alizadeh Eslami |
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| 作者单位： | [1]Department of Chemistry, Azad Islamic University of Tabriz, Darvaze Tehran, Tabriz, Iran [2]Department of Chemistry, College of Science, Mohaghegh Ardebili University, Ardebil, Iran |
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| 基金项目： | Project supported by the Graduate Council of Tabriz Azad University （Iran）. |
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| 摘 要： | In this study, the synthesis of bis-（2-ethylhexyl） terephthalate, via the transesterification reaction of dimethyl terephthalate （DMT） by 2-ethylhexanol in the presence of different heterogeneous catalysts, such as Pb（OAc）2·3H2O, Cd（OAc）2·2H2O, Zn（OAc）2·2H2O, Hg（OAc）2·Ca（OAc）2·H2O, Cu（OAc）2·H2O, NaOAc, CaCO3, CaO, ZnSO4·7H2O, and sulfated zirconia, has been investigated. The reactivity of the catalysts in the reaction progress has been studied and compared. It was found that, hydrated cadmium acetate and sulfated zirconia were reactive catalysts to this reaction. The extent of transesterification of methyl ester groups reached up to 93% and 85.6% using these catalysts, respectively.
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| 关 键 词： | 酯交换反应 对苯二酸酯 催化剂 生物降解 |
| 收稿时间： | 2005-11-21 |
| 修稿时间： | 2005-11-212006-10-30 |
Transesterification Reaction of Dimethyl Terephthalate by 2-Ethylhexanol in the Presence of Heterogeneous Catalysts under Solvent-free Condition |
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| FIRDOVSI Seyidov Tataroglu,YAGOUB Mansoori,PARVIN Alizadeh Eslami.Transesterification Reaction of Dimethyl Terephthalate by 2-Ethylhexanol in the Presence of Heterogeneous Catalysts under Solvent-free Condition[J].Chinese Journal of Chemistry,2007,25(2):246-249. |
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| Authors: | Seyidov Tataroglu Firdovsi Mansoori Yagoub Alizadeh Eslamia Parvin |
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| Institution: | 1. Tel.: 0098‐411‐3312150, 0098‐451‐5514702;2. Fax: 0098‐411‐3318681, 0098‐451‐5514701;3. Department of Chemistry, Azad Islamic University of Tabriz, Darvaze Tehran, Tabriz, Iran |
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| Abstract: | In this study, the synthesis of bis‐(2‐ethylhexyl) terephthalate, via the transesterification reaction of dimethyl terephthalate (DMT) by 2‐ethylhexanol in the presence of different heterogeneous catalysts, such as Pb(OAc)2·3H2O, Cd(OAc)2·2H2O, Zn(OAc)2·2H2O, Hg(OAc)2, Ca(OAc)2·H2O, Cu(OAc)2·H2O, NaOAc, CaCO3, CaO, ZnSO4·7H2O, and sulfated zirconia, has been investigated. The reactivity of the catalysts in the reaction progress has been studied and compared. It was found that, hydrated cadmium acetate and sulfated zirconia were reactive catalysts to this reaction. The extent of transesterification of methyl ester groups reached up to 93% and 85.6% using these catalysts, respectively. |
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| Keywords: | transesterification dioctyl terephthalate heterogeneous catalyst plasticizer solvent-free reaction |
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