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Tungstate sulfuric acid as an efficient catalyst for the synthesis of benzoxazoles and benzothiazoles under solvent-free conditions |
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| Authors: | Mahnaz Farahi Bahador KaramiMasume Azari |
| Affiliation: | Department of Chemistry, Yasouj University, Yasouj 75918–74831, Iran |
| Abstract: | Tungstate sulfuric acid (TSA) has been found to be an efficient and reusable catalyst for the synthesis of benzoxazole and benzothiazole derivatives via reactions of orthoesters with o-aminophenols or o-aminothiophenols in high yields. |
| Keywords: | Heterogeneous catalysis Tungstate sulfuric acid Benzoxazoles Benzothiazoles Orthoesters |
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