多取代共轭烯炔的制备及电催化反应的研究【字数:8931】
目录
摘要II
关键词II
引言
引言1
1. 材料与方法
1.1仪器和试剂
1.1.1实验仪器6
1.1.2实验材料6
1.2材料的合成
1.2.1炔醚类化合物的合成7
1.2.2炔醇类化合物的合成8
1.2.3膦氧联烯的合成8
1.2.4 UiO67负载钯纳米粒子催化剂的制备9
1.3多取代共轭烯炔的合成9
1.4电催化反应研究10
2. 结果与分析
2.1烯炔的合成反应结果
2.1.1外观13
2.2.2产率13
2.2.3多取代共轭烯炔图谱13
2.2烯炔的电催化反应结果13
3. 讨论
3.1 结论15
3.2 展望15
致谢17
参考文献18
附录20多取代共轭烯炔的制备及电催化反应的研究
STUDY ON PREPARATION AND ELECTROCATALYTIC REACTION OF MULTISUBSTITUTED CONJUGATED ENYNES
Student majoring in Applied Chemistry Zhu We *51今日免费论文网|www.51jrft.com +Q: ^351916072*
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Supervisor Zhu Jie
ABSTRACT:Conjugated alkynes are not only widely used in materials chemistry and biochemistry, but also important intermediates in organic synthesis and often used in cyclization reactions, bifunctionalization reaction, etc. Therefore, the research on synthetic route for conjugated alkynes has also been a hot topic. Tranditional methods for synthesizing conjugated enynes include coupling reactions to prepare enynes; dimerization of alkynes to prepare enynes and reactions involving metal carbene to prepare enynes, etc. Transition metal catalyzed coupling reaction of alkynes is an effective method for preparing conjugated alkynes. In this paper, with the prepared allenylphosphine oxides and alkynes as starting materials, metal organic framework supported palladium nanoparticles as catalyst, polysubstituted conjugated enynes were synthesized successfully. On the other hand, electrocatalyzed reaction has been the focus of research in recent years because of its advantages such as environmental friendliness and high reaction efficiency. At present, electrocatalysis has been successfully applied to many organic reactions such as olefins and alkynes, the electrochemical reaction of polysubstituted conjugated alkynes however, has not been reported yet as far as we know. Therefore, with the prepared polysubstituted conjugated enynes in hand and based on the previous study of electrocatalytic reaction of unsaturated compounds, this paper explored the electrocatalytic transformations of the conjugated enynes tentatively.
KEY WORDS: Conjugated enynes; Alkynes; Coupling; electrocatalysis
引言
含有共轭烯炔官能团的有机物是一类有着重要应用的化合物,这类结构的化合物分子当中含有共轭的碳碳双键和碳碳三键,并因此而得名。
这种共轭结构广泛地存在多种天然产物和众多药物活性分子当中。烯炔化合物不仅仅是有机合成中重要的原料和中间体,也是一些抗癌药物以及抗生素等物质的重要组成部分,含有共轭烯炔结构的天然产物是目前已知抗癌抗菌活性较高的化合物之一。例如抗癌抗生素卡里奇霉素、天然药物特比奈酚等天然活性药物中都含有共轭烯炔的结构单元。由于双键和三键反应的多样性,共轭烯炔在有机合成中亦占有重要的地位[1]。
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