| 硅胶负载硫酸铁催化合成2-庚基-1,3-二噁戊烷 |
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| 引用本文： | 许招会,张世金,程磊,王甡.硅胶负载硫酸铁催化合成2-庚基-1,3-二噁戊烷[J].食品科技,2007,32(5):173-175. |
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| 作者姓名： | 许招会 张世金 程磊 王甡 |
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| 作者单位： | 1. 江西师范大学化学化工学院,南昌,330027
2. 江西师范大学化工研究中心,南昌,330027 |
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| 基金项目： | 江西师范大学校科研和教改项目 |
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| 摘 要： | 以正辛醛和乙二醇为原料,以硅胶负载硫酸铁Fe2(SO4)3/SiO2]为催化剂,合成了2-庚基-1,3-二噁戊烷,考察了醛醇摩尔配比、反应时间、催化剂用量及其稳定性对产率的影响。实验表明,硅胶负载硫酸铁是合成2-庚基-1,3-二噁戊烷的理想催化剂,较优反应条件为正辛醛0.1mol、n(正辛醛)/n(乙二醇)=1.0/1.2(mol/mol)、催化剂的用量为反应物总质量的2.0%、带水剂环己烷12mL、回流反应4.0h,2-庚基-1,3-二噁戊烷的产率可达92.0%以上。
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| 关 键 词： | 2-庚基-1 3-二噁戊烷 正辛醛 乙二醇 硅胶负载硫酸铁 |
| 文章编号： | 1005-9989(2007)05-0173-03 |
| 修稿时间： | 2006年10月31 |
Synthesis of 2-heptyl-1,3-dioxolane catalyzed by Fe2(SO4)3/SiO2 |
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| XU Zhao-hui,ZHANG Shi-jin,CHEN Lei,WANG Sheng.Synthesis of 2-heptyl-1,3-dioxolane catalyzed by Fe2(SO4)3/SiO2[J].Food Science and Technology,2007,32(5):173-175. |
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| Authors: | XU Zhao-hui ZHANG Shi-jin CHEN Lei WANG Sheng |
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| Abstract: | 2-heptyl-1,3-dioxolane was synthesized from n-octylaldehyde and ethylene glycol using by Fe2(SO4)3/SiO2 as catalyst.The factors influencing the synthesis were discussed and the better reaction conditions were found as follows: n-octylaldehyde 0.1mol,the molar ratio of n-octylaldehyde/ethylene glycol was 1.0/1.2(mol/mol),the amount of catalyst was 2.0%,the amount of cyclohexane 12mL,reaction time 4.0h.The yield can reach over 92.0% under the better conditions. |
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| Keywords: | 2-heptyl-1 3-dioxolane n-octylaldehyde ethylene glycol Fe2(SO4)3/SiO2 |
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