研究生: |
盧咸叡 Lu, Hsien-jui |
---|---|
論文名稱: |
一價銠金屬催化1,6-烯炔環化反應 : 以β-硼酯取代不飽和酯起始之串聯反應 Rhodium(I)-Catalyzed Cascade Cyclization of 1,6-Enynes : A Cascade Reaction Initiated by Addition of β-Substituted Unsaturated Ester Pinacolborane |
指導教授: |
吳學亮
Wu, Hsyueh-Liang |
口試委員: |
吳學亮
Wu, Hsyueh-Liang 林民生 Hayashi, Tamio 謝仁傑 Hsieh, Jen-Chieh |
口試日期: | 2023/07/13 |
學位類別: |
碩士 Master |
系所名稱: |
化學系 Department of Chemistry |
論文出版年: | 2023 |
畢業學年度: | 111 |
語文別: | 中文 |
論文頁數: | 280 |
中文關鍵詞: | 一價銠金屬催化串聯反應 、不飽和酯氫化 、分子內氫化銠轉移 |
英文關鍵詞: | Rhodium(I)-catalyzed cascade reaction, α,β-Unsaturated ester hydrogenation, intramolecular rhodium hydride migration |
研究方法: | 實驗設計法 |
DOI URL: | http://doi.org/10.6345/NTNU202301543 |
論文種類: | 學術論文 |
相關次數: | 點閱:128 下載:1 |
分享至: |
查詢本校圖書館目錄 查詢臺灣博碩士論文知識加值系統 勘誤回報 |
本篇論文探討利用具有1,6-烯炔起始物進行銠金屬催化串聯反應。從一系列的反應設計中,發現此串聯反應能藉由β-氫消去反應所產生的氫化銠,進而將α,β-不飽和酯上的雙鍵進行氫化。此串聯反應是利用具有1,6-烯炔起始物1a以及β位為硼酯取代的α,β-不飽和酯作為親核性試劑2a進行反應。銠金屬經由與親核性試劑2a進行金屬交換反應後,和起始物上反應性較好的三鍵進行選擇性1,2-加成後,進行分子內環化反應形成烷基銠中間體,經由β-氫消去反應產生氫化銠,而經由分子內轉移使氫化銠選擇性加成至α,β-不飽和酯上的雙鍵後進行質子化反應,最終產生雙鍵被分子內產生的氫化銠氫化成單鍵的產物。
This thesis describes a rhodium catalyzed cascade reaction of an 1,6-enyne strating material. Through a series designed experiments, a reaction involving hydrogenation of α,β-unsaturated ester via rhodium hydride, producedd by β-hydride elimination. This is the first example of α,β-unsaturated ester hydrogenation utilizing intramolecular producedd rhodium hydride. This cascade reaction utilized a starting material with 1,6-enyne structure 1a and a β-boronic acid acid pinacol ester (Bpin) substituded α,β-unsaturated ester as nucleophile 2a, the reaction was initiated by rhodium transmetalation with nucleophile 2a, then selective 1,2-addition with the more reactive triple bond on starting material, after intramolecular cyclization and β-hydride elimination, rhodium hydride will migrate from the newly formed olefin to the olefin on the nucleophile, after which hydrogenation takes place, foming the desired product 3aa.
1. Miura, T.; Shimada, M.; Murakami, M*. J. Am. Chem. Soc. 2005, 127, 1094–1095.
2. Miura, T.; Shimada, M.; Murakami, M*. Tetrahedron. 2007, 63, 6131–6140.
3. Shintani, R.; Tsurusaki,A.; Okamoto, K.; Hayashi, T*. Angew. Chem. Int. Ed. 2005, 44, 3909-3912.
4. Shintani, R.; Okamoto, K.; Otomaru, Y.; Ueyama, K.; Hayashi, T*. J. Am. Chem. Soc. 2005, 127, 54–55.
5. Miura, T.; Sasaki, T.; Nakazawa, H.; Murakami, M*. J. Am. Chem. Soc. 2005, 127, 1390–1391.
6. Chen, J.; Hayashi, T*. Angew. Chem. Int. Ed. 2020, 59, 18510–18514.
7. Millot, N.; Rodriguez, A.; Tucker, C.; Knochel, P*. Organic Reactions. 2001, 417–731.
8. Claraz, A.; Serpier, F.; Darses, S*. ACS. Catal. 2017, 7, 3410−3413.
9. Selmani, A.; Darses, S*. Org. Lett. 2019, 21, 8122–8126.
10. Hong, S.; Sanders, D.; Lee, C.; Grubbs, R*. J. Am. Chem. Soc. 2005, 127, 17160−17161.
11. Wang, Z.; Hayashi, T*. Angew. Chem. Int. Ed. 2018, 57, 1702–1706.
12. Shao, C.; Yu, H.; Wu, N.; Feng, G.; Lin, G*. Org. Lett. 2010, 12, 3820−3823.
13. Huang, Y.; Hayashi, T*. Chem. Rev. 2022, 122, 14346.
14. 邱奕文 (2021) 。碩士論文,國立臺灣師範大學化學系,臺北,臺灣。
15. Duan, C.; Tan, Y.; Zhang, J.; Yang, S.; Dong, H.; Tian, P.; Lin, G*. Org. Lett. 2019, 21, 1690–1693.
16. Dou, X.; Huang, Y.; Hayashi, T*. Angew. Chem. Int. Ed. 2016, 55, 1133 – 1137