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  • Title: Copper/silver-cocatalyzed Conia-ene reaction of linear beta-alkynic beta-ketoesters.
    Author: Deng CL, Song RJ, Guo SM, Wang ZQ, Li JH.
    Journal: Org Lett; 2007 Nov 22; 9(24):5111-4. PubMed ID: 17973487.
    Abstract:
    A novel and general copper/silver catalytic system has been developed for the Conia-ene intramolecular reaction of linear beta-alkynic beta-ketoesters. In the presence of (CuOTf)2.C6H6 and AgSbF6 (or AgOAc), a variety of the linear beta-alkynic beta-ketoesters selectively underwent the Conia-ene intramolecular reaction in moderate to good yields.
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