Abstract
A series of 2-substituted and 2,3-disubstituted quinazolin-4-ones containing a 3,5-di(tert-butyl)-4-hydroxyphenyl group has been synthesized. They were prepared by the condensation of carboxylic acid imino ester hydrochlorides containing the indicated fragment with ethyl anthranilate and also by the reaction of azomethines, N-acylhydrazones, or the 4-phenylthiosemicarbazone of 3,5-di(tert-butyl)-4-hydroxybenzaldehyde with 2-methyl-4H-2,1-benzoxazin-4-one.
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Kelarev, V.I., Silin, M.A., Koshelev, V.N. et al. Synthesis of 2-Substituted and 2,3-Disubstituted Quinazolin-4-ones Containing a Sterically Hindered Phenol Residue. Chemistry of Heterocyclic Compounds 40, 616–621 (2004). https://doi.org/10.1023/B:COHC.0000037317.38046.fc
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DOI: https://doi.org/10.1023/B:COHC.0000037317.38046.fc