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研究生: 陳筱鳳
論文名稱: 金(I)催化1-芳香基-2-(3-芳香基丙炔基)環己-2-烯-1-醇的分子內環化反應:四氫苯并[b]呋喃衍生物的合成
Gold(I)-Catalyzed Intramolecular Cyclization of 1-Aryl-2-(3-arylpropargyl)cyclohex-2-en-1-ols: Synthesis of Tetrahydrobenzo[b]furan Derivatives
指導教授: 葉名倉
Yeh, Ming-Chang
學位類別: 碩士
Master
系所名稱: 化學系
Department of Chemistry
論文出版年: 2014
畢業學年度: 102
語文別: 中文
論文頁數: 136
中文關鍵詞: 苯并[b]呋喃金催化雜環三級醇
英文關鍵詞: benzo[b]furan, gold catalyzed, heterocycle, tertiary alcohol
論文種類: 學術論文
相關次數: 點閱:97下載:2
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  • 本文探討以氯化三苯基膦金 ( Ph3PAuCl ) 和三氟甲磺酸銀 ( AgOTf ) 共催化2號位帶炔基支鏈的六員環三級烯醇化合物進行分子內環化反應。
    1-芳香基-2-(3-芳香基丙炔基)環己-2-烯-1-醇與催化量的氯化三苯基膦金和三氟甲磺酸銀,在氮氣、室溫的條件下,行分子內環化反應,數分鐘內即可得四氫苯并[b]呋喃衍生物。
    此反應亦可應用在三級醇上帶長鏈烷基及長鏈炔基質,得到一系列在2號位或4號位具不同烴取代的四氫苯并[b]呋喃衍生物。

    The thesis discusses chloro(triphenylphosphine)gold(I) (Ph3PAuCl) and silver trifluoromethanesulfonate (AgOTf) cocatalyzed intramolecular cycloisomerization of 1-arylcyclohex-2-en-1-ols bearing an alkynylalkyl tether at the C-2 position of the ring.
    Treatment of 1-aryl-2-(3-arylpropargyl)cyclohex-2-en-1-ols with a catalytic amount of Ph3PAuCl/AgOTf at room temperature under nitrogen in minutes provided tetrahydrobenzo[b]furan derivatives in good yields.
    This reaction can be expanded to an alkyl substitution at the tertiary carbinol carbon and the terminal alkyne, leading to 2 or 4-alkylsubstituted tetrahydrobenzo[b]furan derivatives.

    目錄 i 表格列表 iii 圖列表 iv 流程列表 v 縮寫列表 viii 摘要 ix Abstract x 第一章 緒論 1 第二章 金銀共催化四氫苯并[b]呋喃衍生物的合成 5 2.1前言 5 2.1.1呋喃衍生物之合成探討 8 2.1.2苯并[b]呋喃衍生物之合成探討 10 2.1.3利用金銀共催化系統合成苯并[b]呋喃衍生物 21 2.2實驗設計與概念 27 2.3實驗結果與討論 33 2.3.1起始物的製備 33 2.3.2環化條件最佳化與四氫苯并[b]呋喃衍生物的合成 41 2.3.3環化產物結構鑑定及文獻比對 46 2.3.4化學反應機制探討 59 2.4結論 63 第三章 實驗部分 65 3.1分析儀器及基本實驗操作 65 3.2 Gold(I)-Catalyzed Synthesis of Tetrahydrobenzo[b]furan Derivatives 67 3.2.1 Experimental 67 3.2.2 Synthesis of 2-(3-Arylprop-2-yn-1-yl)cyclohex-2-enone 73 3.2.3 Synthesis of 1-Aryl-2-(3-Arylpropargyl)cyclohex-2-en-1-ol 80 3.2.4 Synthesis of Tetrahydrobenzo[b]furan Derivatives 106 參考文獻 134 附錄 1H與13C NMR圖譜 X-ray ORTEP 解析圖譜、數據及checkCIF/PLATON report

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