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  • Title: Enantioselective synthesis of beta-trifluoromethyl-beta-lactones via NHC-catalyzed ketene-ketone cycloaddition reactions.
    Author: Wang XN, Shao PL, Lv H, Ye S.
    Journal: Org Lett; 2009 Sep 17; 11(18):4029-31. PubMed ID: 19681591.
    Abstract:
    The highly diastereo- and enantioselective synthesis of beta-trifluoromethyl-beta-lactones bearing two contiguous stereocenters was realized by chiral N-heterocyclic carbene-catalyzed formal cycloaddition reaction of alkyl(aryl)ketenes and trifluoromethyl ketones.
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