Abstract
We have investigated a microwave-assisted synthesis of 4(3H)-quinazolinones by condensation of anthranilic acid, orthoesters (or formic acid) and substituted anilines, using Keggin-type heteropolyacids (H3PW 12O40·13H2O, H4SiW 12O40·13H2O, H4SiMo 12O40·13H2O or H3PMo 12O40·13H2O) as catalysts. We found that the the use of H3PW12O40·13H 2O acid coupled to microwave irradiation allows a solvent-free, rapid (∼13 min) and high-yielding reaction. © 2008 by MDPI.
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Ighilahriz, K., Boutemeur, B., Chami, F., Rabia, C., Hamdi, M., & Hamdi, S. M. (2008). A microwave-assisted and heteropolyacids-catalysed cyclocondensation reaction for the synthesis of 4(3H)-quinazolinones. Molecules, 13(4), 779–789. https://doi.org/10.3390/molecules13040779
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