Answers are grounded in this paper and cite their sources.
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.
No takes yet. Share an insight, caveat, or question.
Villemin et al. (1990) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: