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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/25298

    Title: Synthesis of 3,4-disubstituted a-methylene-g-lactones via sonochemical Barbier-type reaction
    Authors: 李世元;Lee, Adam Shih-yuan;Chang, Yu-ting;Wang, Shu-huei;Chu, Shu-fang
    Contributors: 淡江大學化學學系
    Date: 2002-11-18
    Issue Date: 2009-12-01
    Publisher: Elsevier
    Abstract: A series of 3,4-disubstituted α-methylene-γ-lactones were synthesized by the addition reaction of allylic bromide with aldehyde via sonochemical Barbier-type reaction condition and then followed by the in situ intramolecular esterification. The α-methylene-γ-lactone was produced as the sole product when THF/PhH solvent mixture was used whereas the allylation adduct was generated as the major product when solvent DMF was used.
    Relation: Tetrahedron Letters 43(47), pp.8489-8492
    DOI: 10.1016/S0040-4039(02)02088-9
    Appears in Collections:[化學學系暨研究所] 期刊論文

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