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  • Title: Copper-catalyzed multicomponent reaction: synthesis of 4-arylsulfonylimino-4,5-dihydrofuran derivatives.
    Author: Shang Y, Ju K, He X, Hu J, Yu S, Zhang M, Liao K, Wang L, Zhang P.
    Journal: J Org Chem; 2010 Aug 20; 75(16):5743-5. PubMed ID: 20704448.
    Abstract:
    A series of 4-arylsulfonylimino-4,5-dihydrofurans (14 examples) were efficiently synthesized in good to excellent yields by using the copper-catalyzed three-component reaction between sulfonyl azides, phenylacetylene, and beta-ketoesters in tetrahydrofuran (THF) at 40 degrees C for 8 h in the presence of triethylamine (TEA). A plausible mechanism for this process is proposed.
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