An approach to a variety of 3-substituted isocoumarins has been developed. The reaction
proceeded from o-bromobenzamide derivatives and 1,3-diketones via CuI-catalyzed reaction in DMF under
the action of K3PO4 at 120 °C without ligands or additives.
Key words
copper - domino reaction - isocoumarins -
o-bromobenzamides - 1,3-diketones