Efficient one-pot three-component synthesis of 3,4-dihydro-12-phenyl-2H- benzo[b] xanthene-1,6,11(12H)-trione derivatives in ionic liquid

Article abstract of DOI:10.1007/s11164-012-0688-5

A series of 3,4-dihydro-12-phenyl-2H-benzo[b]xanthene-1,6,11(12H)-trione derivatives have been synthesized in high yields in the presence of ionic liquid [bmim⁺]Br^-. The reaction work-up is simple and the ionic liquid can be easily separated from the product and reused.