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  • Title: Orthogonal selectivity with cinnamic acids in 3-substituted benzofuran synthesis through C-H olefination of phenols.
    Author: Agasti S, Sharma U, Naveen T, Maiti D.
    Journal: Chem Commun (Camb); 2015 Mar 28; 51(25):5375-8. PubMed ID: 25347298.
    Abstract:
    A palladium catalyzed intermolecular annulation of cinnamic acids and phenols has been achieved for the selective synthesis of 3-substituted benzofurans. Isotope labeling, competition experiments, kinetic studies, and intermediate trapping have supported a sequence of C-C bond formation and decarboxylation followed by the C-O cyclization pathway.
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