文化大學機構典藏 CCUR:Item 987654321/2779
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    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://irlib.pccu.edu.tw/handle/987654321/2779


    题名: Calix[4]quinones. Part 4: The ClO2 oxidation of calix[4]arene dialkyl ethers
    作者: Lin, Yu-Lung;Yu, Tzer-Shun;Wang, Wen-You;Lin, Lee-Gin
    贡献者: 化學系
    日期: 2006
    上传时间: 2009-11-20 14:04:11 (UTC+8)
    摘要: Except for the special case of calix[4]arene diethyl ether 1, the chlorine dioxide oxidation of dialkyl ethers 2-5 yielded only the corresponding calix[4]diquinone dialkyl ethers 8-11. Chlorine dioxide oxidation of calix[4]arene diethyl ether I produced two isomeric products 6 and 7, which were stable enough to be isolated by column chromatography. However, a slow conformational interconversion between isomeric pair 6 and 7 was observed at room temperature, and the equilibrium was reached after 400 h at 18 degrees C with an amount of 5:3 in favor of syn-isomer. (c) 2006 Published by Elsevier Ltd.
    關聯: TETRAHEDRON Volume: 62 Issue: 25 Pages: 6082-6089
    显示于类别:[化學系所] 期刊論文

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