辛基十二烷基缩水甘油醚的合成

doi:10.3863/j.issn.1674-5086.2011.01.026

西南石油大学学报(自然科学版) ›› 2011, Vol. 33 ›› Issue (1): 144-146.DOI: 10.3863/j.issn.1674-5086.2011.01.026

辛基十二烷基缩水甘油醚的合成

丁伟景慧于涛曲广淼孙颖

东北石油大学化学化工学院，黑龙江大庆 163318

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-02-20 发布日期:2011-02-20

A SYNTHESIS OF 2 OCTYL DODECYL ETHER

DING Wei JING Hui YU Tao QU Guang-miao SUN Ying

Chemistry and Chemical Engineering College，Northeast Petroleum University，Daqing Heilongjiang 163318，China

Received:1900-01-01 Revised:1900-01-01 Online:2011-02-20 Published:2011-02-20

摘要/Abstract

摘要： 以固体氢氧化钠、格尔伯特二十醇和环氧氯丙烷为原料，采用四丁基溴化铵为相转移催化剂，合成了2辛基十二烷基缩水甘油醚。讨论了原料摩尔比、四丁基溴化铵的用量、反应温度、反应时间对反应产率的影响。最终确定最佳反应条件是：n（格尔伯特二十醇）∶ n（环氧氯丙烷）∶ n（固体氢氧化钠）=1.00∶ 1.15∶ 1.20；四丁基溴化铵用量为0.05（相对醇的摩尔比）；反应温度为50℃；反应时间为4h。在此条件下可得产率为79.8%的2辛基十二烷基缩水甘油醚，用盐酸-丙酮法测得其环氧值为0.232。最终产物结构通过红外光谱分析得到证实。

关键词: 相转移催化剂, 2-辛基十二烷基缩水甘油醚, 格尔伯特二十醇, 环氧值, 环氧氯丙烷

Abstract: 2octyl dodecyl ether is synthesized from solid sodium hydroxide，Guerbet alcohol and epichlorohydrin by phasetransfer catalysistetrabutyl ammonium.Effects of molar ratio of raw materials，amount of catalyst，reaction temperature and reaction time on the yield of 2octyl dodecyl ether are discussed.The final determined optimum conditions are that n(Guerbet alcohol)∶ n(epichlorohydrin)∶ n(Solid caustic soda)=1.00∶ 1.15∶ 1.20，the amount of catalyst is 0.05(relative to alcohol molar ratio)，reaction temperature and time are at 50℃ for 4 hours.Under these conditions，2octyl dodecyl ether can be obtained at 79.8% yield rate.The epoxy value measured by hydrochloric acidacetone method is 0.232.The final product structure is confirmed by infrared spectroscopy.

Key words: phase transfer catalyst, 2 Octyl 1 dodecanol, Guerbet alcohol, epoxy value, epichlorohydrin 

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