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  • 學位論文

金屬銅試劑催化串聯環化反應來合成多元稠合雜環化合物

Copper Catalyzed Cascade Cyclizations for the Synthesis of Fused-multiheterocycles

指導教授 : 姚清發
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摘要


本論文分為兩章節。第壹章先針對金屬銅催化串聯環化反應的 定義做介紹,並回顧近年來各種類型串聯反應、銅催化耦合反應與金 屬銅催化串聯環化反應的相關文獻。 第貳章為目前對金屬銅催化串聯環化反應的研究結果與討論。本 章節分為兩部份;第一部份為簡易且高效率方法合成出α-咔啉酮衍 生物,反應利用N-苯甲基-2-碘苯甲醯胺類化合物與2-鹵苯乙腈在溫 和條件下藉由烏爾曼型銅催化分子間C-C 鍵與分子內C-N 鍵耦合的 串聯環化反應得到目標物。第二部份介紹合成出由多個雜環骨架所稠 合而成的化合物,反應利用2-碘-N-(2-碘苯甲基)苯甲醯胺或 2- 碘-N-(2-碘苯乙基)苯甲醯胺化合物與2-鹵苯乙腈藉由烏爾曼型銅 催化分子間C-C 鍵與兩次分子內C-N 鍵耦合的串聯環化反應得到目 標物。這兩種方法可以在溫和反應條件下進行,得到高產率的目標物 且無副產物的生成。

並列摘要


The contents of the present thesis are mainly divided into two chapters. The first chapter is the preface of the thesis which introduce the definition and literature review about types of cascade reaction, copper catalysis coupling reaction and copper-catalyzed cascade cyclization reactions. The second chapter is the results and discussion of the present work on copper-catalyzed cascade cyclizations. This chapter subdivided into two parts; The first part is a facile and efficient synthesis of α-carbolinone derivatives from the reaction between N-benzyl-2-iodobenzamide derivatives and 2-halo-benzyl cyanide via copper-catalyzed Ullmann type intermolecular C-C bond and intramolecular C-N bond couplings cascade cyclization under mild conditions. The second part of second chapter describes the synthesis of multi heterocyclic fused skeleton from the reaction between 2-iodo-N-(2-iodobenzyl)benzamide or 2-iodo-N-(2-iodophenethyl) benzamide derivatives and 2-halobenzyl cyanide via copper-catalyzed Ullmann type intermolecular C-C bonds and twice intramolecular C-N bonds couplings cascade cyclization. Both these two types of reactions worked under mild reaction conditions and furnished high yields of the desired products. Apart from these reactions devoid of side products.

參考文獻


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