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  • 學位論文

分子內Michael 加成反應之非鏡像立體選擇性探討與天然物(-)-Allosedridine 和 (-)-2’-epi-Ethylnorlobelol 之合成

Total Synthesis of (-)-Allosedridine and (-)-2’-epi-Ethylnorlobelol by Diastereoselective Intramolecular Michael Addition

指導教授 : 侯敦仁
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摘要


在本篇論文中,我們利用掌性苯乙胺及其衍生物來控制7-氯-2-庚烯甲酯進行分子內Michael 加成反應時之非鏡像立體選擇性,並且也研究(R)- α-苯乙胺加成至不同官能基之Michael acceptor 時,包括酯類、酮類和Weinreb 醯胺,其非鏡像立體選擇性的差異。最後,並將其應用來合成天然物(-)-allosedridine 和(-)-2''-epi-ethylnorlobelol。

並列摘要


In this thesis, we apply the chiral methylbenzylamine and their derivatives to control the diastereoselectivity of the methyl 7-chlorohept-2-enoate in intramolecular Michael addition reactions. And we also study the differences of the diastereoselectivity when (R)-α-ethylbenzylamine reacts with different Michael acceptors, including the ester, ketone and Weinreb amide. Finally, we apply this methodology to synthesize two natural products (-)-allosedridine and (-)-2''-epi-ethylnorlobelol.

參考文獻


2. Patil, N. T.; Huo, Z.; Yamamoto, Y. J. Org. Chem. 2006, 71, 6991-6995.
14. Herisson, J. –L.; Chauvin, Y. Makromol. Chem. 1971, 141, 161-167.
16. Rebek, J,; Gavina, F. J. Am. Chem. Soc. 1975, 97, 1592-1594.
17. McGinnis, J.; Katz, T. J.; Hurwitz, S. J. Am. Chem. Soc. 1976, 98, 605-606.
18. Schrock, R. R. J. Mol. Catal. 1980, 8, 73.

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