Ad ehydrogenative oxygenation of C(sp 2 ) À Hb onds with intramolecular phenolic hydroxy groups has been developed, which provides as traightforward and concise access to structurally diversely benzofurans from ortho-alkenylphenols. Ther eactioni sc atalyzed by palladium on carbon (Pd/C) without any oxidants and sacrificing hydrogen acceptors.
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