| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1338246 | Polyhedron | 2012 | 8 Pages |
H3PW12O40 and nano-silica supported H3PW12O40 were found to be efficient heterogeneous catalysts for the preparation of 1,3,5-triarylbenzenes via triple self condensation of acetophenones under microwave irradiation and solvent-free conditions. High yields, short reaction times, easy work-up, easy availability and handling, eco-friendly and reusability of the catalysts are the main aspects of the present method. The catalytic mechanism of 1,3,5-triarylbenzenes synthesis is also proposed.
Graphical abstractH3PW12O40 and nano-silica supported H3PW12O40 were found to be efficient heterogeneous catalysts for the preparation of 1,3,5-triarylbenzenes via triple self condensation of acetophenones under microwave irradiation and solvent-free conditions. High yields, short reaction times, easy work-up, easy availability and handling, ecofriendly and reusability of the catalysts are the main aspects of the present method. The catalytic mechanism of 1,3,5-triarylbenzenes synthesis is also proposed.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► By supporting tungstophosphoric acid on nano-silica. ► A heterogeneous catalyst was prepared. ► This heterogeneous catalyst was used for synthesis of 1,3,5-triarylbenzenes. ► The catalyst was reusable.
