Three-component one-pot synthesis of 4-aryl-3-methyl-1-phenyl-4,5,6,7,8,9-hexahydropyrazolo[5,4-b]quinolin-5-one derivatives in aqueous media

4-Aryl-3-methyl-l-phenyl-4,5,6,7,8,9-hexahydropyrazolo[5,4-b]quinolin-5-one derivatives were synthesized by a three-component one-pot reaction of aromatic aldehydes, 5-amino-3-methyl-1-phenylpyrazole and 1,3-cyclohexanedione using sodium dodecanesulfonate (SDS) as a catalyst in aqueous media. The structures of products were identified by IR and H-1 NMR spectra, and the structure of 4e was confirmed by X-ray diffractional analysis.