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  • Title: Epoxy-annulations by reactions of alpha-amido ketones with vinyl sulfonium salts. Reagent versus substrate control and kinetic resolution.
    Author: Unthank MG, Tavassoli B, Aggarwal VK.
    Journal: Org Lett; 2008 Apr 03; 10(7):1501-4. PubMed ID: 18336037.
    Abstract:
    Diphenyl vinyl sulfonium salt and chiral amido-ketones undergo highly diastereoselective epoxy-annulation reactions in good yield. The use of a chiral vinyl sulfonium salt dominates the stereochemical outcome of the annulation reaction (reagent control is greater than substrate control), and this has allowed the kinetic resolution of racemic amido-ketones to be achieved.
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