Abstract
AbstractWe developed a B(C6F5)3 catalyzed hydroarylation of terminal alkynes with various phenols at room temperature without adding any additives, leading to the synthesis of 2‐gem‐vinylphenols with good regio‐selectivity. Those transformations featured a broad substrate scope with moderate yields. Mechanism studies indicated that those transformations proceeded through the activation of phenol by B(C6F5)3 with subsequent protonation of alkyne/Friedel‐Crafts‐type reaction.magnified image
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