Synthesis of ۲-Aryl-۵-methyl-۲,۳-dihydro-۱H-۳-pyrazolones in the Presence N-Propylsulfamic acid supported onto Magnetic Fe۳O۴ nanoparticles (MNPs-PSA) as a Green and Reusable Heterogeneous Nanocatalyst Catalyst by a Four-Component Sequential Reaction in Water

An efficient one-pot synthesis of ۲-aryl-۵-methyl-۲,۳-dihydro-۱H-۳-pyrazolones derivatives by a simple, atom-economical and four-component sequential reaction of phenyl hydrazine, methyl acetoacetate, aromatic aldehydes and β-naphthol in the presence of a catalytic amount of N-Propylsulfamic acid supported onto magnetic Fe۳O۴ nanoparticles (MNPs-PSA), in water is reported. The structures of the compounds were confirmed by IR, ۱H NMR, ۱۳C NMR, and elemental analysis.

کلیدواژه ها:

N-Propylsulfamic acid supported onto magnetic Fe۳O۴ nanoparticles (MNPs-PSA) ، Methyl acetatoacetate ، β-naphthol ، Pyrazolones