Solvent-free synthesis of 4-aryl-3,4-dihydrobenzopyran-2-ones via [3+3] cyclocoupling of phenols with cinnamic acid catalyzed by molecular iodine |
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| Authors: | Durga P. KamatSantosh G. Tilve Vijayendra P. Kamat |
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| Affiliation: | Department of Chemistry, Goa University, Taleigao Plateau, Goa 403 206, India |
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| Abstract: | Molecular iodine was used as a catalyst in the [3+3] cyclocoupling of phenols and cinnamic acids which proceeds via a tandem esterification-hydroarylation process at 120-130 °C under solvent-free conditions. Substituted 4-aryl-3,4-dihydrobenzopyran-2-ones were obtained in good yields. |
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| Keywords: | 3,4-Dihydrobenzopyran-2-one Iodine Solvent-free Phenol Cinnamic acid |
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