研究生: |
田雅文 Ya-Wen Tien |
---|---|
論文名稱: |
有機合成新方法:亞甲基環己烷成環反應 New Synthetic Method:Methylenecyclohexane Annulation |
指導教授: |
劉行讓
Hsing-Jang Liu |
口試委員: | |
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: | 2005 |
畢業學年度: | 93 |
語文別: | 中文 |
論文頁數: | 104 |
中文關鍵詞: | 成環反應 、醋酸鈀 、亞甲基環己烷 |
相關次數: | 點閱:1 下載:0 |
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本論文主要探討的內容是利用二價金屬鈀促使β-側鍊上具有末端雙鍵之α-氰基酮化合物74-79的合環反應,進而有效的形成具有亞甲基環己烷之駢環化合物80-85。
一系列不同的β-側鍊上具有末端雙鍵之α-氰基酮化合物74-79
,是經由α-氰基的引進,phenylselenenyl chloride進行氧化,Micheal加成反應所得。α-氰基酮化合物在醋酸鈀的作用下,會與側鍊上的末端雙鍵進行合環反應。
而這一簡便合成具環外雙鍵之駢環化合物,預期可有效的運用於複雜有機化合物的合成。
□-Cyanocycloalkanones bearing an alkyl appendage containing a terminal olefin (e.g. 74-79) have been found to undergo an intramolecular cyclization in the presence of Pd(II), giving cycloadducts bearing an exocyclic C-C double bond (e.g. 80-85). The required cyclization precursors were efficiently generated from the parent cycloalkanones via an established 3-step protocol for the installation of the □-nitrile moiety, phenylselenenyl chloride oxidation of the thus obtained □-cyanocyclo-
alkanones to install an □,□-unsaturated double bond, and a Michael addition of the lithium enolate of ethyl 5-hexenoate onto the doubly activated □-carbon. Treatment of the resulting monocyclic ketone with Pd(OAc)2 effectively generated the desired bicyclic product. The detailed results of this investigation constitutes this thesis.
1. Clive, D. L. J.; Beaulieu, P. L. J. Org. Chem. 1984, 49, 1313.
2. Cossy, J.; Ibhi, S.;Kahn, P. H.;Tacchini, L. Tetrahedron Lett. 1995, 36, 7877.
3. Koga, K.; Tomioka, K.; Masumi, F.;Yamashita, T. Tetrahedron Lett. 1984, 25, 336.
4. Kato, M.; Watanabe, M.; Masuda, Y. Bull. Chem. Soc. Jpn. 1992, 65, 2071
5. Piers, E.; Bik Wah Anissa Yeung; Rettig, S, J. Tetrahedron. 1987, 43, 5521
6. Toste, F, D.; Kennedy-Smith, J, J.; Staben, S ,T. J. Am. Chem. Soc. 2004,126, 4527.
7. Trost, B. M. Angew. Chem. Int. Engl. 1989, 28, 1173.
8. Trost, B. M.; Tanoury, G. J.;Lautens, M.; Chan, C.; Macpherson, D. T. J. Am. Chem. Soc. 1994,116, 4255.
9. Ito, T.; Hirao, T.; Saegusa, T. J. Org. Chem. 1978, 43, 1011.
10. Ito, T.; Aoyama, H.; Hirao, T.; Mochizuki, A.; Saegusa, T. J. Am. Chem. Soc. 1979, 101, 494.
11. Kende, A, S.; Roth, B.; Sanfilippo, P. J. J. Am. Chem. Soc. 1982,104, 1784.
12. Kende, A, S.; Roth, B.; Sanfilippo, P. J.; Blacklock, T. J. J. Am. Chem. Soc. 1982,104, 5808
13. Toyota, M.; Wade, T.; Ihara, M.; Fukumoto, K.;Arakawa, M. J. Am. Chem. Soc. 1998,120, 4976
14. Toyota, M.; Wade, T.; Ihara, M. J. Org. Chem. 2000, 65, 4565.
15. Toyota, M.; Majo, V, J.; Ihara, M. Tetrahedron Lett. 2001, 1555.
16. Toyota, M.; Rudyanto, M.; Ihara, M. J. Org. Chem. 2002, 67, 3374
17. Toyota, M.; Sasaki, M.; Ihara, M. Org.Lett. 2003, 5, 1193.