| 辛酸蔗糖酯的合成与杀虫活性研究 |
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| 引用本文： | 宋子娟,李淑君,袁海舰,刘丽梅,刘志明,宋湛谦.辛酸蔗糖酯的合成与杀虫活性研究[J].北京林业大学学报,2007,29(2):116-121. |
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| 作者姓名： | 宋子娟 李淑君 袁海舰 刘丽梅 刘志明 宋湛谦 |
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| 作者单位： | 东北林业大学材料科学与工程学院,生物质材料科学与技术教育部重点实验室;中国林业科学研究院林产化学工业研究所 |
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| 基金项目： | 黑龙江省博士后科研启动基金 |
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| 摘 要： | 该文以无水碳酸钾为催化剂，低毒的二甲基亚砜为溶剂，采用酯交换法在减压条件下高效合成了一类新型绿色杀虫剂——辛酸蔗糖酯，并针对其合成条件进行了初步的优化.通过单因子实验得到合成辛酸蔗糖酯最佳条件为:蔗糖与辛酸乙酯的投料摩尔比2∶1，反应温度95～100℃，反应时间5 h，催化剂用量（占辛酸乙酯质量分数）16%，反应绝对压力11 kPa，产率为79.11%.所得产物经柱色谱分离、质谱表征，以及傅立叶红外光谱分析，确定分离得到的为辛酸蔗糖单酯、二酯和三酯.合成的辛酸蔗糖酯、分离得到的单酯、二酯和三酯分别对舞毒蛾1龄幼虫进行杀虫实验，单酯的杀虫活性为最高；对农业害虫大豆蚜虫的室内防治实验，在施药5 d后，高浓度处理的校正虫口减退率在80%左右，证明了产物具有一定的杀虫活性.
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| 关 键 词： | 辛酸蔗糖酯 杀虫活性 酯交换 |
| 文章编号： | 1000-1522（2007）02-0016-06 |
| 收稿时间： | 1900-01-01 |
| 修稿时间： | 2006-03-09 |
Synthesis and insecticidal activity of sucrose octanoate. |
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| SONG Zi-juan,LI Shu-jun,YUAN Hai-jian,LIU Li-mei,LIU Zhi-ming,SONG Zhan-qian.Synthesis and insecticidal activity of sucrose octanoate.[J].Journal of Beijing Forestry University,2007,29(2):116-121. |
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| Authors: | SONG Zi-juan LI Shu-jun YUAN Hai-jian LIU Li-mei LIU Zhi-ming SONG Zhan-qian |
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| Institution: | 1.Key Laboratory of Bio-based Material Science and Technology, Ministry of Education, College of Material Science and Engineering, Northeast Forestry University, Harbin, 150040, P. R. China; 2. Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing, 210042, P. R. China. |
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| Abstract: | A new class of insecticidal compound sucrose octanoate was synthesized by the trans esterification method at reduced pressure, which used DMSO (dimethylsulfoxide) as solvent, K2CO3 as the catalyst. Under the conditions of homogeneous liquid, reacting ethyl octanoate with sucrose yielded optimum results under the following conditions: the molar ratio of sucrose to ethyl octanoate was 2∶1, reaction temperature was 95-100℃, reaction time was 5 hrs, the quantity of catalyst accounted for ethyl octanoate was 16%, the reactor pressure was 11 kPa, the yield was 7911%. After being separated by the column chromatography, sucrose octanoate was identified by MS (mass spectrum) and IR (infrared ray) . It was proven that each separated group was monoester, diester and triester, respectively. The bioassay of the separated monoester, diester, triester and synthetic sucrose octanoate was evaluated against the Lymantria dispar grubs, and the monoester activity was the best. The revision insect reducing rate of Aphis glycines reached about 80% at high concentration after being treated for 5 days. These results indicate that sucrose octanoate possesses a good insecticidal activity. |
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| Keywords: | sucrose octanoate insecticidal activity trans-esterification |
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