| 合成二烃基二硫化物的新工艺及反应机理 |
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| 引用本文： | 王芹珠,刘庄,王树军,李永德.合成二烃基二硫化物的新工艺及反应机理[J].清华大学学报(自然科学版),1991(6). |
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| 作者姓名： | 王芹珠 刘庄 王树军 李永德 |
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| 作者单位： | 化学系
(王芹珠，刘庄，王树军)，化学系(李永德) |
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| 摘 要： | 二烃基二硫是一类重要香料。采用硫酸与 ＮＣＳ（Ｎ－氯代琥珀酰亚胺）反应．得到１７种二烃基二硫。其中５种未见文献报道。经红外，核磁和元素分析，证明其成分和结构与预定的一致。通过反应中间体的捕捉， ＮＣＳ与 ＮＢＳ（Ｎ－溴代琥珀酰亚胺）对比实验及 ＮＣＳ最佳用量和反应时间对产率影响的研究，提出该反应为氧化还原机理。文中还对不同结构硫醇的反应性作了研究。
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| 关 键 词： | 硫醇 二烃基二硫 二糠基二硫 反应性 反应机理 |
A New Synthesis Method for Dialkyldisulfides and Study of the Reaction Mechanism |
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| Wang Qinzhu,Liu Zhuang,Wang Shujun,Li Yongde.A New Synthesis Method for Dialkyldisulfides and Study of the Reaction Mechanism[J].Journal of Tsinghua University(Science and Technology),1991(6). |
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| Authors: | Wang Qinzhu Liu Zhuang Wang Shujun Li Yongde |
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| Institution: | Department of Chemistry |
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| Abstract: | dialkyldisulfides, which are important flavoring agents, were synthesized by the reaction of mercaptans and NCS. 5 of them have not been reported in literature. All of these dialkyldisulfides were identified and confirmed by IR, NMR and elementary analysis. A redox mechanism for this reaction is proposed, this was confirmed by the capture of the reaction intermediate, the comparison of NCS and NBS, the optimal NCS amount,as well as the influence of the reaction time on the yield. The reactivity of different mercaptans has been also studied systematically. |
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| Keywords: | mercaptan dialkyldisulfide difurfuryldisulfide reactivity mechanism |
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