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  • Title: Rh-catalyzed cyclization of diynes and enynes initiated by carbonyl-directed activation of aromatic and vinylic C-H bonds.
    Author: Tsuchikama K, Kuwata Y, Tahara YK, Yoshinami Y, Shibata T.
    Journal: Org Lett; 2007 Aug 02; 9(16):3097-9. PubMed ID: 17616143.
    Abstract:
    The Rh-catalyzed hydroarylative and hydrovinylative cyclization of diynes with aryl ketones or enones gave monocyclic 1,3-dienes. Enynes also underwent the same reaction and chiral products were obtained with high ee using a chiral Rh catalyst. Carbonyl-directed activation of aromatic and vinylic C-H bonds is likely the initial step in the present transformation.
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