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Nanosized magnesium oxide as catalyst for the rapid and green synthesis of substituted 2-amino-2-chromenes |
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| Authors: | Dalip Kumar V Buchi Reddy RK Rana Rajender S Varma |
| Institution: | a Chemistry Group, Birla Institute of Technology and Science, Pilani 333031, India b Material Science Division, Indian Institute of Chemical Technology, Hyderabad, India c Clean Processes Branch, Sustainable Technology Division, National Risk Management Research Laboratory, U.S. Environmental Protection Agency, 26 W. Martin Luther King Drive, MS 443, Cincinnati, OH, USA |
| Abstract: | A nanosized magnesium oxide catalyzed three-component condensation reaction of aldehyde, malononitrile, and α-naphthol proceeded rapidly in water-PEG to afford corresponding 2-amino-2-chromenes in high yields at room temperature. The greener protocol was found to be fairly general and the catalyst was reused in subsequent reactions with consistent activity. |
| Keywords: | 2-Amino-2-chromenes Magnesium oxide Multi-component condensation |
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