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    Title: Palladium(0)-catalyzed 5-exo-dig O-cyclization/coupling of ethyl 3-(2-alkynylphenyl)-3-oxopropanoates with aryl iodides to 1,3-dihydroisobenzofurans
    Authors: Wei, Li-Lan;Wei, Li-Mei;Lin, Po-Yang;Chen, Chin-Chau;Pan, Wen-Bin;Wu, Ming-Jung
    Contributors: 輔英科技大學 應用化學及材料科學系
    Date: 2015-11-25
    Issue Date: 2016-11-16 16:44:02 (UTC+8)
    Abstract: Palladium-catalyzed highly regioselective 5-exo-dig O-cyclization/coupling of a series of ethyl 3-(2-alkynylphenyl)-3-oxopropanoates with aryl iodides has been developed for the synthesis of (Z)-alkylidene-1,3-dihydroisobenzofuran derivatives. Reactions of ethyl 3-(2-alkynylphenyl)-3-oxopropanoates and aryl iodides are carried out in DMSO at 80 ?C with 5 mol % Pd(PPh3)4 and 2 equiv of Et3N as a base for 4 h in modest yields.
    Relation: Tetrahedron LettersVolume 56, Issue 47, Pages 6629–6632
    Appears in Collections:[Department of Applied Chemistry and Materials Science] Journal Article

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