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  • Title: Synthesis of coumarins via Pd-catalyzed oxidative cyclocarbonylation of 2-vinylphenols.
    Author: Ferguson J, Zeng F, Alper H.
    Journal: Org Lett; 2012 Nov 02; 14(21):5602-5. PubMed ID: 23092533.
    Abstract:
    Palladium-catalyzed oxidative cyclocarbonylation of 2-vinylphenols constitutes a simple, direct method for the synthesis of coumarins. The reaction conditions, employing low pressures of CO, and air or 1,4- benzoquinone as the oxidant, are attractive in terms of environmental considerations and operational simplicity. Coumarins with a variety of functional groups were prepared in yields up to 85%.
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