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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/71796

    Title: Convergent/Divergent Synthesis and Photophysical Studies of Alternating Benzene-Furan Oligoaryls from Substituted Propargylic Dithioacetals
    Authors: Chou, Chih-Ming;Chen,Wei-Qiang;Chen, Jia-Hong;Lin, Cheng-Lan;Tseng, Jui-Chang;Lee, Chin-Fa;Luh, Tien-Yau
    Contributors: 淡江大學化學工程與材料工程學系
    Keywords: annulation;band gaps;electrochemistry;fluorescence;oligomerization
    Date: 2006-07
    Issue Date: 2013-05-31 11:39:36 (UTC+8)
    Publisher: Weinheim: Wiley - VCH Verlag GmbH & Co. KGaA
    Abstract: A range of oligoaryls that contain alternating benzene-furan rings is synthesized by a rapid convergent/divergent method from the annulation of a propargylic dithioacetal and an aldehyde with a propargylic dithioacetal moiety as a substituent. These oligomers are fairly soluble in a range of organic solvents and can be easily purified by reprecipitation. The substituents on the furan rings can be varied according to the substituents in the starting propargylic dithioacetals. This route provides a useful procedure for the synthesis of alternating benzene-furan oligomers without repeated units. These furan-containing oligoaryls are highly fluorescent in the visible region and are electrochemically active. The band gaps of these oligomers appear to be less sensitive towards changes in conjugation length than those of oligofurans.
    Relation: Chemistry–An Asian Journal 1-2, pp.46-55
    DOI: 10.1002/asia.200600026
    Appears in Collections:[Graduate Institute & Department of Chemical and Materials Engineering] Journal Article

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