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  • Title: A regio- and diastereoselective palladium-catalyzed cyclopropanation of norbornene derivatives with molecular oxygen as the sole oxidant.
    Author: Wu W, Jiang H, Gao Y, Huang H, Zeng W, Cao D.
    Journal: Chem Commun (Camb); 2012 Oct 25; 48(83):10340-2. PubMed ID: 22983140.
    Abstract:
    A mild and efficient Pd-catalyzed cyclopropanation of norbornene derivatives with tertiary propargylic alcohols using molecular oxygen as the sole oxidant is described. This process allows quick and atom-economical assembly of various 1,2,3-trisubstituted cyclopropanes bearing α,β-unsaturated ketone moieties in high yields as a single regio- and diastereoisomer.
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