Efficient One-Pot Synthesis of 2-Arylbenzo[b]furans from 2-Styrylphenols Using CuBr2
2010
A new route to the synthesis of 2-arylbenzo[b]furans has been developed. It involves homo/cross-McMurry coupling of salicylaldehyde/substituted salicylaldehydes/aromatic aldehydes to 2-styrylphenols, which undergo intramolecular cyclization with CuBr2 in tetrahydrofuran at ambient temperature to afford 2-arylbenzo[b]furans in good yields.
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