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  • 學位論文

雙環醛醇分子與各種一級胺分子之偶合擴環反應研究

Coupling and Ring Expansion Reactions of Endo Formyl [2.2.1]Bicyclic Carbinols with Alkyl and Aryl Amines

指導教授 : 楊德芳

摘要


本篇論文中,我們有興趣於將雙環[2.2.1]醛醇分子轉變成為雙環[3.2.1]α-胺基酮,而轉變的最重要步驟為將 (carbinol) 47與 (carbinol) 71進行連續縮合和擴環反應。將化合物47和化合物 71與各種一級胺 (primary amine) 試劑反應,當作N-親核劑 (N-nucleophile)進行分子內的重排 (intramolecular rearrangement) 得到擴環產物(ring expansion reaction products)。這反應被證明具高度的化學選擇性 (chemoselective)、位置選擇性 (regioselective) 及立體選擇性 (stereoselective)。雙環[3.2.1]α-胺基酮是最終產物。而一級胺的脂肪族烷基或者芳香族上的取代基可以是的甲基、乙基、其他烷基或是對位接有推電子基或拉電子基的芳香族取代基。 Carbinols 47和71藉由不同的一級胺 (primary amine) 試劑的反應,其反應機制也將會被探討。

並列摘要


In this thesis, we are interested in converting endo formyl [2.2.1]bicyclic carbinols into a bicyclic [3.2.1]α-amino ketone. The consecutive condensation and ring expansion reactions of carbinols 47 and 71 are the most important steps. Compound 47 and compound 71 reacted with various kinds of primary amine which are N-nucleophiles, via intramolecular rearrangement to give ring expansion reaction products. The reaction had proved to be highly chemoselective、regioselective and stereoselective. The bicyclic [3.2.1]α-amino ketone is the final product. The alkyl or aryl group of primary amines might be methyl、ethyl、other alkyl, para-substituted electron donating or electron withdrawing aryl group. The mechanisms for the reactions of carbinols 47 and 71 with various primary amine are also discussed.

參考文獻


1. Nagata, H.; Taniguchi, T.; Kawamura, M.; Ogasawara, K. Tetrahedron Letters 1999, 40, 4207-4210.
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被引用紀錄


呂伊萱(2016)。臺灣報媒建構下的陸客形象〔碩士論文,國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU201603175
楊琇晶(2014)。台灣媒體的中國因素--香港經驗參照〔碩士論文,國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU.2014.02251

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