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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/68117

    Title: 鈷觸媒催化之芳香雜環溴化物還原性烷基化反應: 以一鍋化反應製備烷基噻吩、呋喃、硒吩與吡咯之有機光電材料重要前驅物;Cobalt-Catalyzed Reductive Alkylation of Heteroaryl Bromides: One-Pot New Access to Alkyl-Thiophenes, -Furans, -Selenophenes, and -Pyrroles
    Authors: 蔡登洲;Cai,Deng-Jhou
    Contributors: 化學工程與材料工程學系
    Keywords: 烷基化反應;芳香雜環;鈷催化;alkylation reaction;hetroarys;Co-catalyzed
    Date: 2015-07-16
    Issue Date: 2015-09-23 10:45:07 (UTC+8)
    Publisher: 國立中央大學
    Abstract: 本研究探討一個實用且便利之一鍋化烷基化反應,利用廉價之鈷鹽進行具有步驟經濟效益之還原性耦合反應,首次將各類烷基成功引入於有機光電領域熱門之功能性芳香雜環小分子,例如噻吩、呋喃、硒吩及吡咯。而在我們所尋得最佳化條件下,可以有效率合成多樣的烷基芳香雜環化合物,可達中等至良好之分離產率。
    ;A practical and convenient Co-catalyzed alkylation method targeting on the facile introduction of various alkyl chains into organic-electronically significant heteroaryls including thiophenes, furans, selenophenes, and pyrroles is reported. Under well-optimized reaction conditions, a wide range of alkylated heteroaryls are efficiently prepared in moderate to good isolated yields. Notably, 2- or 3-alkylthiophenes, as playing a decisive role in polymer chemistry and organic materials, are step-economically synthesized for the first time by present reductive-coupling methodology using inexpensive cobalt salts as catalyst. This straightforward synthetic method avoids the preparation of moisture-unstable organometallic reagents (RMgX or RZnX) and the use of precious catalysts ([Pd] or [Ni]) required in conventional alkylation protocols.
    Appears in Collections:[化學工程與材料工程研究所] 博碩士論文

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