Nanoporous Na+-montmorillonite perchloric acid as an efficient heterogeneous catalyst for synthesis of merocyanine dyes based on isoxazolone and barbituric acid
Keywords: 5-Arylidine barbituric acid; Isoxazol-5(4H)-one; Multi-component reaction (MCR); Nano clay; Pyrano [2,3-d] pyrimidinone;