以两缺位硅钨酸正丁基季铵盐为催化剂，30% H2O2为氧化剂，乙腈为溶剂，研究枞酸甲酯的环氧化反应，运用紫外吸收光谱、红外吸收光谱、气相色谱和气质联用谱对氧化产物进行分析。结果表明，枞酸甲酯与H2O2发生了缓和的选择性氧化反应，氧化产物主要为单环氧枞酸甲酯和二环氧枞酸甲酯。同时分析了反应过程中催化剂用量、氧化剂用量、反应温度和反应时间对枞酸甲酯氧化转化率、环氧化选择性的影响，确定了此次实验的最佳反应条件为：枞酸甲酯5 mmol，乙腈5 mL，催化剂用量为10 μmol，30% H2O2用量为0.45 mL，反应温度为50℃，反应时间10 h；此反应条件下，枞酸甲酯的氧化转化率高于98%，环氧化选择性达62%。
Abstract
The epoxidation reaction of methyl abietate with 30% H2O2 as oxidant catalyzed by tetrabutylammonium divacant lacunary silicotungsate in acetonitrile solvent was studied. UV, IR, GC and GC/MS spectra of the oxidation products showed that monoepoxide and diepoxide of methyl abietate were mainly formed by the mild selective oxidation of methyl abietate with H2O2. The influences of catalyst and oxidant dosage, temperature, reaction time on oxidation conversion and selectivity were investigated by monitoring the course of reaction. The optimum conditions were investigated as follow: methyl abietate 5 mmol, catalyst 10 μmol，30% H2O2 0.45 mL, acetonitrile 5 mL, reaction temperature 50℃ and reaction time 10 h. The oxidation conversion of methyl abietate and the epoxidation selectivity were 98% and 62%, respectively under that conditions.
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基金
收稿日期：2008-11-26修回日期：2009-06-04基金项目：广西青年科学基金资助项目(桂科青0728016)；广西林产化学品开发与应用重点实验室开放基金资助项目(GXFC0813)；广西高校人才小高地科研基金资助项目作者简介：黄道战(1968—)，高级实验师，博士生。*曾韬(通讯作者)，教授,研究方向为林产化工,Email: zengtao@njfu.edu.cn。引文格式：黄道战,蓝虹云,陈乔萍,等. 两缺位硅钨酸正丁基季铵盐催化枞酸甲酯的环氧化反应[J]. 南京林业大学学报:自然科学版,
