In this research, we synthesized the Ag/Fe 3 O 4 /TiO 2 @MWCNTs magnetic nanocomposites using water extract of Spinacia oleracea leaves, and the high performance of synthesized catalyst was confirmed by employing it in the multicomponent reaction of isatoic anhydride, N-methylimidazole, α-haloketones, electron-deficient acetylenic compounds, ammonium acetate, and methyl epoxide in water at ambient temperature for the preparation of new pyridobenzoazepine derivatives in high yields. Also, the catalytic activity of the green synthesized Ag/Fe 3 O 4 /TiO 2 @MWCNTs was evaluated in the reduction of organic pollutants such as 4-nitrophenol (4-NP) in water at mild conditions.
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