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  • 學位論文

釕金屬催化環化加成反應形成1,2,3-三氮唑之探討

Study on the Ruthenium catalyzed cycloaddition to from 1,2,3-triazoles.

指導教授 : 侯敦仁
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摘要


在本篇論文中,我們對釕金屬催化炔與疊氮化合物經環化加成反 應形成1,2,3-三氮唑做探討。由異構化的實驗當中,我們發現1,2,3-三氮唑結構穩定。也利用Hammett 方程式與動力學的實驗,發現在苯環對位上接有推電子基的二苯乙炔較有利於產物的生成,且炔類的濃度會影響反應速率。

並列摘要


We have studied on the Ruthenium catalyzed cycloaddition of alkynes and azides to form 1,2,3-triazoles. In the isomerization studies, we found that the structure of 1,2,3-triazoles are stable. We have also found that diarylacetylene bearing electron-withdrawing groups are more reactive than those with electron-donating groups, and the reaction rate is proportional to the concentration of alkynes.

並列關鍵字

Ruthenium cycloaddtion 1,2,3-triazoles

參考文獻


10 Francisco Tomas, Jose Luis M. Abboud, Jose Laynez, Rafael Notario, Lucia Santos,
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V. V.; Jia, G. J. Am. Chem. Soc. 2005, 127, 15998.
5 Majireck, M. M.; Weinreb, S. M. J. Org. Chem. 2006, 71, 8680.

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