4-Hydroxy-2-quinolones 129. Synthesis and structure of 2-bromomethyl-4-carboxy-5-methyl-1,2-dihydrooxazolo-[3,2-a]quinolinium bromide |
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| Authors: | I. V. Ukrainets N. L. Bereznyakova V. A. Parshikov A. V. Turov |
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| Affiliation: | (1) National University of Pharmacy, Kharkiv, 61002, Ukraine;(2) Taras Shevchenko National University, Kiev, 01033, Ukraine |
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| Abstract: | By analogy with the 4-hydroxy derivatives, the bromination of N-allyl-4-methyl-2-oxo-1,2-dihydroquinoline-3-carboxylic acid leads to the closure of a five membered oxazole ring but, in contrast, it forms the 2-bromomethyl-4-carboxy-5-methyl-1,2-dihydrooxazolo[3,2-a]quinolinium bromide salt. __________ Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 10, pp. 1496–1502, October, 2007. |
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| Keywords: | oxazolo[3,2-a]quinoline-4-carboxylic acid bromination heterocyclization X-ray structural analysis |
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