A method to derive functionalized biquinoline- and quinoline-bearing chromene bicyclic systems through aryl-aryl bond formation in a one-pot synthesis is described. The X-ray structure analysis provides insight into the mode of orientation of the molecules and opens the way to the synthesis of various hybrid molecules by making use of suitable substituents at R-1, R-2, and R-3.
Microwave-assisted solid acid-catalyzed synthesis of quinolinyl quinolinones and evaluation of their antibacterial, antioxidant activities
Microwave-assisted montmorillonite K-10-catalyzed Friedlander synthesis of quinolinylquinolinones has been developed. The efficient and eco-friendly catalyst along with the convenience of the product isolation make this process an attractive alternative for the synthesis of target heterocycles. The synthesized products were confirmed by FTIR, 1H NMR, 13C NMR, and mass spectroscopic techniques. All the synthesized compounds showed good antibacterial property similar to standard Ampicillin and enhanced antioxidant activity.