| 环氧乙烷嵌入乙酸乙酯合成(低聚)乙二醇乙醚乙酸酯 |
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| 引用本文： | 沈永安,方云,王义友,吉峙润. 环氧乙烷嵌入乙酸乙酯合成(低聚)乙二醇乙醚乙酸酯[J]. 精细化工, 2005, 22(9): 712-714 |
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| 作者姓名： | 沈永安 方云 王义友 吉峙润 |
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| 作者单位： | 江南大学,化学与材料工程学院,江苏,无锡,214036;江南大学,化学与材料工程学院,江苏,无锡,214036;江南大学,化学与材料工程学院,江苏,无锡,214036;江南大学,化学与材料工程学院,江苏,无锡,214036 |
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| 基金项目： | 教育部科学技术研究重点资助项目（JJS2002-78）;江苏省高校高新技术产业发展资助项目（SJF2001-31） |
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| 摘 要： | 探索了在特殊酸/碱双活性位催化剂催化下环氧乙烷(EO)嵌入乙酸乙酯(EA)合成(低聚)乙二醇乙醚乙酸酯(EGEEA)的一步法反应,经红外光谱、电喷雾质谱鉴定得到了预期产物。气相色谱测定结果表明,催化剂AB-5具有较高的单EO选择性,在催化剂用量为1.1 g/100 g EA,体系初压0.1 MPa,反应温度145~150℃,n(EA)∶n(EO)=51∶,EO加料速度为0.25 g/m in的优选条件下,单EO选择性达到w(EGEEA)=51.5%。
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| 关 键 词： | 嵌入反应 乙二醇乙醚乙酸酯 乙酸乙酯 环氧乙烷 |
| 文章编号： | 1003-5214（2005）09-0712-03 |
| 收稿时间： | 2004-09-21 |
| 修稿时间： | 2004-09-212005-03-18 |
Synthesis of Oligo-ethyleneglycol Ethyl Ether Acetate from Ethyl Acetate Inserted by Ethylene Oxide |
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| SHEN Yong-an,FANG Yun,WANG Yi-you,JI Shi-run. Synthesis of Oligo-ethyleneglycol Ethyl Ether Acetate from Ethyl Acetate Inserted by Ethylene Oxide[J]. Fine Chemicals, 2005, 22(9): 712-714 |
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| Authors: | SHEN Yong-an FANG Yun WANG Yi-you JI Shi-run |
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| Abstract: | A process was reported to produce oligo-ethyleneglycol ethyl ether acetate by inserting ethylene oxide(EO) between the carbonyl and ethoxy group of ethyl acetate(EA) over special acid-base catalyst.The product was characterized by FTIR and ESI-MS. It was found by GC that the catalyst AB-5 has the highest product selectivity of ethyleneglycol ethyl ether acetate(EGEEA).The optimum selectivity of w(EGEEA)=51.5% was obtained under following reaction conditions:the amount of catalyst 1.1 g/100 g ethyl acetate,the initial pressure 0.1 MPa,the reaction temperature 145～150 ℃,the molar ratio of EA to EO 5∶1 and the feed rate of EO 0.25 g/min. |
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| Keywords: | insertion reaction ethylene glycol ethyl ether acetate ethyl acetate ethylene oxide |
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