Multicomponent Reactions Synthesis of Triaryl-1H Imidazoles Using Reductive-oxidative Reactions by MnO2-FeSO4 as a Catalyst
محورهای موضوعی :
Ali A.Raheem
1
(University of Misan, college of Sciences, Chemistry department, Misan,62001, Iraq)
Ali T.Saleh
2
(University of Misan, college of Sciences, Chemistry department, Misan,62001, Iraq)
کلید واژه: catalyst, Multicomponent reactions, Triaryl-1H Imidazoles, Reductive-oxidative, MnO2-FeSO4,
چکیده مقاله :
The study's chief purpose is to investigate multicomponent reactions synthesis of triaryl-1h imidazoles using reductive-oxidative reactions by MnO2 - FeSO4 as a catalyst.Some novel substituted imidazoles have been synthesized using MCRs, one-pot synthesis, and MnO2/FeSO4 as a catalyst; the method involves the reaction of benzil, aromatic aldehyde, and ammonium acetate in the presence of MnO2/FeSO4 as a reductive-oxidative catalyst under mild conditions. the obtained compounds were nontoxic, excellent yields, and environmentally friendly. The compounds were elucidated using IR and 1H-NMR spectra. To satisfy the aim of the study, Reactions have been performed simply by mixing 1,2-diketone with an aldehyde and ammonium acetate in the presence of the catalytic reagent of MnO2/FeSO4. The mixture was prepared by ground them together in a mortar with a pestle at room temperature for several minutes; after that, they purified by column chromatography, 2,4,5-triaryl substituted imidazole derivatives were obtained in excellent yields.
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