研究生: |
林佳誼 Lin, Chia-I |
---|---|
論文名稱: |
樟腦衍生之胺化合物催化二羥基丙酮與醛類衍生物進行不對稱醛醇反應 Asymmetric Aldol Reactions of Dihydroxyacetone with Aldehydes Catalyzed by Camphor-Derived Amine Catalysts |
指導教授: |
汪炳鈞
Uang, Biing-Jiun |
口試委員: |
吳學亮
Wu, Hsyueh-Liang 王聖凱 Wang, Sheng-Kai |
學位類別: |
碩士 Master |
系所名稱: |
理學院 - 化學系 Department of Chemistry |
論文出版年: | 2017 |
畢業學年度: | 105 |
語文別: | 中文 |
論文頁數: | 107 |
中文關鍵詞: | 不對稱催化 、醛醇反應 |
外文關鍵詞: | Asymmetric catalysis, Aldol reaction |
相關次數: | 點閱:1 下載:0 |
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本論文敘述二羥基丙酮為C3予體與4-硝基苯甲醛進行不對稱醛醇(Aldol)反應,以樟腦磺醯胺衍生之胺化合物為有機催化劑。探討溶劑、溫度、添加劑及反應物之當量數對反應之影響,目前最佳條件為使用20 mol%催化劑27和20 mol%苯甲酸,在二氯甲烷/丙腈混合溶劑(7/1)中進行不對稱醛醇反應,可得到42%的產率,非鏡像選擇性為1:6.5 (anti/syn),syn異構物的鏡像超越值為84%。
This thesis dealt with the use of dihydroxyacetone as a C3 donor with 4-nitrobenzaldehyde in the asymmetric aldol reaction catalyzed by amines as organocatalyst. The effect of solvent, temperature, additive and mole ratio of reactants were studied. It was found that in the presence of 20 mol% catalyst 27 and 20 mol% benzoic acid additive in the DCM-propionitrile (7/1) mixed solvent system, afforded syn aldol product in 42% yield, moderate diastereoselevtivity (1:6.5) and good enantioselectivity (84%).
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