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- W2981102664 abstract "A simple and easy synthesis of 2-(3-nitro-phenyl)-quinazoline-4-carboxylic acid (3) has been successfully developed through a one-pot three-component condensation reaction of (2-amino-phenyl)-oxo-acetic acid sodium salt (1) obtained from the hydrolysis of isatin with ammonium acetate and 3-nitrobenzaldehyde. Some novel quinazoline-ester derivatives 4-7 were then obtained by the reaction between the new compound 3 and various alcohols. Then, quinazoline-amide derivatives 10-14 were synthesized from the reaction of various amines and 2-(3-nitro-phenyl)-quinazoline-4-carbonyl chloride (8), obtained by the reaction of compound 3 with SOCl2. Finally, some novel quinazoline-azo derivatives 17-19 were synthesized by the coupling reaction between β-dicarbonyl compounds and the novel amino-quinazoline derivative compound 15, obtained by reduction of nitro-quinazoline derivative compound 11. Thus, a new series of quinazoline-4-carboxylic acid, ester, amide, and azo derivatives was synthesized and fully characterized by 1H NMR, 13C NMR, IR, and mass spectrometry analysis." @default.
- W2981102664 created "2019-10-25" @default.
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- W2981102664 date "2019-10-17" @default.
- W2981102664 modified "2023-09-26" @default.
- W2981102664 title "One‐pot three‐component synthesis of novel 2‐(3‐nitro‐phenyl)‐quinazoline‐4‐carboxylic acid derivatives" @default.
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- W2981102664 doi "https://doi.org/10.1002/jhet.3731" @default.
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