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Abstract | Cited by

An organocatalytic cascade synthesis of 3-arylcoumarins has been developed. Mediated by 1,8-diazabicyclo[5,4,0]-undec-7-ene or tetramethylguanidine, a number of 3-arylcoumarins were obtained in good to excellent yields via condensation–ring opening–annulation between N-Bocindolin-2-ones/benzofuran-2(3H)-ones and salicylaldehydes. This method was featured by a broad scope of reactants, mild conditions, and simple operation.

Graphical abstract: Organocatalytic condensation–ring opening–annulation cascade reactions between N-Bocindolin-2-ones/benzofuran-2(3H)-ones and salicylaldehydes for synthesis of 3-arylcoumarins

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