4-hydroxy-2-quinolones. 203*. Reaction of 1-hexyl-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxylic acid 4-pyridylmethylidene hydrazide with bromine
作者:I. V. Ukrainets、E. V. Mospanova、S. V. Shishkina
DOI:10.1007/s10593-012-1122-z
日期:2012.11
It has been shown experimentally that upon the reaction of 1-hexyl-4-hydroxy-2-oxo-1,2-dihydroquinoline-3-carboxylic acid 4-pyridylmethylidene hydrazide with molecular bromine in glacial acetic acid not only the azomethine carbon atom is brominated, but also the position 6 of the quinolone ring.