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A series of novel coumarinyl 1,4-benzodioxanes were successfully synthesized from electronically diverse 2-[(o-iodophenoxy)methyl]oxiranes and different positional isomers of hydroxycoumarin via one-pot tandem nucleophilic displacement and copper-mediated intramolecular C–O coupling reaction using CuI and 1,10-phenanthroline as the efficient catalytic system. All the compounds were characterized by...
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