Iodine-catalyzed three-component one-pot synthesis of naphthopyranopyrimidines under solvent-free conditions |
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| Authors: | K. Praveen Kumar S. Satyanarayana P. Lakshmi Reddy G. Narasimhulu Narender Ravirala B.V. Subba Reddy |
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| Affiliation: | 1. Crop Protection Chemicals, Indian Institute of Chemical Technology, Hyderabad 500 007, India;2. Natural Product Chemistry, Indian Institute of Chemical Technology, Hyderabad 500 007, India |
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| Abstract: | Iodine is found to be a highly efficient catalyst for the three-component coupling (3CC) of aldehydes, β-naphthol, and 1,3-dimethylbarbituric acid under solvent-free conditions to afford the corresponding 8,10-dimethyl-12-aryl-12H-naphtho[1′,2′5,6]pyrano[2,3-d]pyrimidine-9,11-diones in good yields with high selectivity. The use of readily available iodine makes this method very simple, convenient, and cost-effective. |
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