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A facile, efficient and novel approach to access 2-substituted-N1-carbethoxy-2,3-dihydro-4(1H)-quinazolinones was developedby condensation of substituted N-carbethoxyanthranilamide with alkyl, aromatic or heteroaromatic aldehydes in the refluxing 2,2,2-trifluoroethanol or hexafluoroisopropanol using p-toluenesulfonic acid as catalyst.? 2008 Bai Ling Xu. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.