English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 80990/80990 (100%)
造訪人次 : 42119214      線上人數 : 1294
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜尋範圍 查詢小技巧:
  • 您可在西文檢索詞彙前後加上"雙引號",以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋,建議至進階搜尋限定作者欄位,可獲得較完整資料
  • 進階搜尋


    請使用永久網址來引用或連結此文件: http://ir.lib.ncu.edu.tw/handle/987654321/89123


    題名: 以六甲基二矽氮烷為氮來源在微波加熱下探討含氮雜環化合物之合成反應;Synthesis of N-Heterocyclic Compounds by Using Hexamethyldisilazane as a Nitrogen Source Under Microwave Irradiation
    作者: 鐘意琇;Chung, Yi-Hsiu
    貢獻者: 化學學系
    關鍵詞: 氮雜環化合物;微波;六甲基二矽氮烷;N-heterocyclic compounds;Microwave;Hexamethyldisilazane
    日期: 2022-07-26
    上傳時間: 2022-10-04 10:58:50 (UTC+8)
    出版者: 國立中央大學
    摘要: 含氮雜環化合物廣泛存在於材料、藥物與天然物的結構中,因此近年來許多化學家致力於發展新的含氮雜環合成方法。本篇論文使用六甲基二矽氮烷作為含氮雜環的氮原子來源,符合綠色化學環保的概念,較少的溶劑、更有效率的微波加熱方式以及搭配三氟甲磺酸三甲基矽酯、三氟化硼與納菲樹脂三種不同的酸催化劑進行催化反應探討含有吡啶、嘧啶及異喹啉雜環化合物之合成途徑。其中,納菲樹脂在反應結束後經過簡單清洗可以重複使用達十次且產率變化不大,如此一來可以達到環境友善的目的。我們也提出不同含氮雜環結構可能的反應機制。研究結果發現六甲基二矽氮烷很適合作為含氮雜環的氮元素來源,未來合成更多不同結構的氮雜環時,六甲基二矽氮烷是很好的試劑選擇。;N-heterocyclic compounds are widely existing in materials, pharmaceuticals and nature products. Therefore, chemists devoted to develop new synthetic methods in recent years. In this thesis, we use hexamethyldisilazane as the nitrogen source for nitrogen containing heterocycles. And combined with green chemistry, we use microwave reaction method, which requires less solvent and more efficient reaction, and use trimethylsilyl trifluoromethanesulfonate, boron trifluoride and Nafion® NR50 three different kinds of acid catalyst for catalytic reaction. The synthesis method of compounds containing pyridine, pyrimidine and isoquinoline structure were explored. Among them, Nafion® NR50 can be reused 10 times and simply cleaned after the reaction is finished. The yield changes little, so as to achieve the goal of being friendly to the environment. In addition, we also proposed probable reaction mechanisms of different nitrogen heterocycles we synthesis in this thesis. The results show that hexamethyldisilazane is very suitable as a nitrogen source for nitrogen containing heterocycles and also a good choice for the synthesis of more different nitrogen containing structure in the future.
    顯示於類別:[化學研究所] 博碩士論文

    文件中的檔案:

    檔案 描述 大小格式瀏覽次數
    index.html0KbHTML40檢視/開啟


    在NCUIR中所有的資料項目都受到原著作權保護.

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 隱私權政策聲明