| 研究生: |
駱集煜 Luo, Ji-Yu |
|---|---|
| 論文名稱: |
醯胺碸基化合物和碸基自由基的環合反應 The cyclization reaction of sulfonamides with sulfonyl radicals |
| 指導教授: |
莊治平
Chuang, Che-Ping |
| 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: | 2006 |
| 畢業學年度: | 94 |
| 語文別: | 中文 |
| 論文頁數: | 82 |
| 中文關鍵詞: | 砜基自由基 、醋酸錳 |
| 外文關鍵詞: | Sulfonyl radical, Manganese(Ⅲ) acetate |
| 相關次數: | 點閱:93 下載:1 |
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近年來,利用自由基進行環合反應已經在有機合成上扮演著重要的角色。
由過去的研究報告中得知,碸基自由基(Sulfonyl radical)可與不飽和鍵進行加成反應或由反應中間體進行消去反應,有時甚至兼具兩者的角色,因此是一種多功能的中間體。
醋酸錳(Ⅲ)是目前最常使用在自由基環合反應的起始性氧化試劑,本篇報告將利用醋酸錳(Ⅲ)來生成碸基自由基,與醯胺碸基化合物進行自由基環合反應。
本報告內容為:
利用醋酸錳(Ⅲ)形成碸基自由基,分別和氮-乙基-氮-苯基醯胺碸基化合物或氮-甲基-氮-苯基醯胺碸基化合物進行自由基環合反應(式1)。
Initiated cyclization by free radical plays an important role in organic synthesis. Sulfonyl radical have been reported can undergo addition reaction with unsaturated bond or be an intermediate undergo elimination reaction. Thus, sulfonyl radical is a multi-functionalized intermediate.
Manganese(Ⅲ) acetate has been used for the majority of oxidative cyclizations, sulfonyl radicals which produced from manganese(Ⅲ) acetate induced free radical cyclization reaction with sulfonamides in our report.
In this thesis we described our results on:
Sulfonyl radical which produced from manganese(Ⅲ) acetate induced free radical cyclization reaction with N-ethyl-N-phenyl-sulfonamides or N-methyl-N-phenyl-sulfon- amides to form quinolinone in good yields(Eq.1).
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