| 纳米银催化氧化偶联硫醇制二硫化物 |
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| 引用本文： | 闫江梅,陶辉旺,曾牡玲,陶军,张世鸿,闫智英,王伟,王家强.纳米银催化氧化偶联硫醇制二硫化物[J].催化学报,2009,30(9):856-858. |
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| 作者姓名： | 闫江梅 陶辉旺 曾牡玲 陶军 张世鸿 闫智英 王伟 王家强 |
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| 作者单位： | 云南大学应用化学系,教育部自然资源药物化学重点实验室,云南昆明,650091 |
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| 基金项目： | 国家自然科学基金，国家重点基础研究发展计划(973计划)前期研究专项，云南省自然科学基金，高等学校博士学科点专项科研基金 |
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| 摘 要： | 采用多元醇为溶剂和还原剂制备了聚乙烯吡咯烷酮(PVP)保护的纳米银,并将其用于催化正十二烷基硫醇氧化偶联反应.质谱、红外光谱、拉曼光谱和核磁共振氢谱表征结果表明所得产物为二硫化物.考察了反应时间、反应温度、催化剂和水的用量等对正十二烷基硫醇氧化偶联反应的影响,从而得出优化的反应条件:0.157mmolPVP保护的纳米银,20μl水,100℃下反应3h.此外,进一步将PVP保护的纳米银用于正丁硫醇和正辛硫醇的氧化偶联反应,也得到了相应的二硫化物.
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| 关 键 词： | 聚乙烯吡咯烷酮 纳米银 氧化偶联 硫醇 二硫化物 |
| 收稿时间： | 20 May 2009. |
PVP-Capped Silver Nanoparticles as Catalyst for Oxidative Coupling of Thiols to Disulfides |
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| YAN Jiangmei,TAO Huiwang,ZENG Muling,TAO Jun,ZHANG Shihong,YAN Zhiying,WANG Wei,WANG Jiaqiang.PVP-Capped Silver Nanoparticles as Catalyst for Oxidative Coupling of Thiols to Disulfides[J].Chinese Journal of Catalysis,2009,30(9):856-858. |
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| Authors: | YAN Jiangmei TAO Huiwang ZENG Muling TAO Jun ZHANG Shihong YAN Zhiying WANG Wei WANG Jiaqiang |
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| Institution: | aKey Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Department of Applied Chemistry, Yunnan University, Kunming 650091, Yunnan, China |
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| Abstract: | Polyvinylpyrrolidone (PVP)-capped silver nanoparticles were used as the catalyst for the oxidative coupling of n-dodecanethiol. The product was characterized to be n-dodecyl disulfide by mass spectrometry, Fourier transform infrared spectroscopy, Raman spectros-copy, and proton nuclear magnetic resonance spectroscopy. The effects of reaction time, temperature, catalyst concentration, and water amount on catalyst performance were examined. The optimum reaction conditions were 0.157 mmol PVP-capped silver nanoparticles, 20 μl distilled water, reaction temperature of 100 °C, and reaction time of 3 h. The PVP-capped silver nanoparticles were also used as the catalyst for the oxidative coupling of n-butanethiol and n-octanethiol to their corresponding disulfides. |
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| Keywords: | polyvinylpyrrolidone silver nanoparticle oxidative coupling thiol disulfide |
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