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Knoevenagel‐Michael‐cyclocondensation Tandem Reaction of Malononitrile,Various Aldehydes and Dimedone Catalyzed by Sulfonic Acid Functionalized Pyridinium Chloride as a New Ionic Liquid and Catalyst |
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| Authors: | Mohammad Ali Zolfigol Ardeshir Khazaei Ahmad Reza Moosavi‐Zare Javad Afsar Vahid Khakyzadeh Omid Khaledian |
| Affiliation: | 1. Faculty of Chemistry, Bu‐Ali Sina University, Hamedan, 6517838683, Iran;2. Department of Chemistry, University of Sayyed Jamaleddin Asadabadi, Asadabad, 6541835583, Iran |
| Abstract: | New ionic liquid sulfonic acid functionalized pyridinium chloride [Pyridine–SO3H]Cl was used for the synthesis of tetrahydrobenzo[b]pyran derivatives by the one‐pot three component condensation reaction of various aldehydes, dimedone and malononitrile at 95 ºC under solvent‐free conditions. |
| Keywords: | Tetrahydrobenzo[b]pyran Sulfonic acid functionalized pyridinium chloride [Pyridine– SO3H]Cl Ionic liquid Solvent‐free |