Clay Catalysis: Dry Condensation of 3-Methyl-1- Phenyl-5-Pyrazolone with Aldehydes Under Microwave Irradiation

Abstract
3-Methyl-1-phenyl -5-pyrazolone (1) and arylcarboxyaldehydes (2) were condensated to 1-phenyl-3-methyl-4-(arylmethylene)-5-pyrazolone (3) in presence of acidic clay KSF without solvent under microwave irradiation.