| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1334846 | Polyhedron | 2011 | 6 Pages |
In the present work, the dehydrogenation of 2-substituted imidazolines with sodium periodate in the presence of tetraphenylporphyrinatomanganese(III) chloride supported on polystyrene-bound imidazole, [Mn(TPP)Cl@PSI] is reported. A wide variety of 2-imidazolines were efficiently converted to their corresponding imidazoles by the [Mn(TPP)Cl@PSI]/NaIO4 catalytic system in a 1:2 CH3CN/H2O mixture under agitation with magnetic stirring. Ultrasonic irradiation enhanced the catalytic activity of this catalyst in the oxidation of 2-imidazolines and this led to shorter reaction times and higher product yields. This catalyst could be reused several times without significant loss of its catalytic activity.
Graphical abstractDehydrogenation of 2-substituted imidazolines with sodium periodate in the presence of [Mn(TPP)Cl@PSI] is reported. A wide variety of 2-imidazolines were efficiently converted to their corresponding imidazoles by the [Mn(TPP)Cl@PSI]/NaIO4 catalytic system at room temperature in a 1:2 CH3CN/H2O mixture under agitation with magnetic stirring and under ultrasonic irradiation. This catalyst could be reused several times without significant loss of its catalytic activity.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Biomimetic oxidation of 2-imidazolines catalyzed by supported Mn(III)porphyrin. ► Application of US irradiation increases the catalytic activity of the catalyst. ► The reaction times decreased and the product yields increased.
