Phosphomolybdic Acid/SiO2 as Heterogeneous Solid Acid Catalyst for the Rapid Synthesis of N-Substituted Pyrroles |
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| Authors: | M. Anil Kumar A. Bala Krishna B. Hari Babu C. Bhupendra Reddy |
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| Affiliation: | Department of Chemistry , Sri Venkateswara University , Tirupati, India |
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| Abstract: | Isatins react efficiently with 4-hydroxyproline in the presence of 10 mol% of PMA/SiO2 in acetonitrile/water (4:1) under reflux conditions to furnish N-substituted pyrroles in excellent yields. Similarly, 11H-indeno[1,2-b]quinoxalin-11-ones also participated in this reaction. |
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| Keywords: | Heteropoly acid 4-hydroxy proline isatins pyrroles |
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