Abstract
A series of 4-aryl-3,4-dihydro-2H-pyrano[3,2-c]quinolin-2,5(6H)-dione derivatives was synthesised by the threecomponent reaction of aromatic aldehyde, quinoline-2,4-diol and Meldrum′fs acid catalysed by .-proline. This protocol has the advantages of easy work-up, mild reaction conditions and high yields.
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Du, B. X., Li, Y. L., Lin, W., Hu, M. H., Huang, Z. B., & Shib, D. Q. (2013). L-Proline-catalysed three-component cascade reaction for the facile synthesis of 3,4-dihydro-2H-pyrano[3,2-c]quinolin-2,5(6H)-dione derivatives. Journal of Chemical Research, 37(2), 95–98. https://doi.org/10.3184/174751912X13569668034930
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