I. Ukrainets, L. Sidorenko, O. Gorokhova
Jul 1, 2006
Citations
1
Influential Citations
8
Citations
Journal
Chemistry of Heterocyclic Compounds
Abstract
Short term treatment of 3-ethoxycarbonyl-4-morpholino-2-oxo-1,2-dihydroquinoline with aqueous solutions of hydrohalogen acids leads to the formation of the ethyl esters of 4-halo-substituted 2-oxo-1,2-dihydroquinoline-3-carboxylic acids. Hydrolysis in HF is possible on extended boiling only to the 4-hydroxy derivative.