4-Hydroxy-2-quinolones. 118. Synthesis,structure, and chemical properties of 2-bromomethyl-5-oxo-1,2-dihydro-5H-oxazolo-[3,2-a]quinoline-4-carboxylic acid and its ethyl ester |
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| Authors: | I. V. Ukrainets L. V. Sidorenko O. V. Gorokhova S. V. Shishkina A. V. Turov |
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| Affiliation: | (1) National University of Pharmacy, Kharkiv, 61002, Ukraine;(2) NTC Institute for Single Crystals, National Academy of Sciences Ukraine, Kharkiv, 61001;(3) Taras Shevchenko Kiev National University, Kiev, 01033, Ukraine |
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| Abstract: | ![]()
Bromination of N-allyl-substituted 4-hydroxy-2-quinolinones with molecular bromine in acetic acid or carbon tetrachloride occurs with closing of a five membered oxazole ring to give 2-bromomethyl-5-oxo-1,2-dihydro-5H-oxazolo[3,2-a]quinoline. __________ Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 5, pp. 736–749, May, 2007. |
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| Keywords: | oxazolo[3,2-a]quinoline-4-carboxylic acid bromination heterocyclization hydrolysis X-ray analysis |
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