%0 Journal Article
%T Novel heterocyclic derivatives of pyrano[3,2-c]quinolinone from 3-(1-ethy1-4-hydroxy-2-oxo-2(1H)-quinolin-3-yl)-3-oxopropanoic acid
%A Magdy Ahmed Ibrahim
%A Hany Mohamed Hassanin
%A Yassin Abdel-Allah Gabr
%A Youssef Abdel-Salam Alnamer
%J European Journal of Chemistry
%D 2010
%I 
%R 10.5155/eurjchem.1.3.195-199.91
%X 3-(1-Ethyl-4-hydroxy-2-oxo-2(1H)-quinolin-3-yl)-3-oxopropanoic acid (2) has been synthesized. The chemical behaviour of ¦Â-ketoacid 2 was studied towards condensation reactions with salicylaldelyde, 2-hydroxy-1-naphthaldehyde, 1-phenyl-4-hydroxy-2-oxo-quinoline-3-carboxaldehyde, 2-hydroxy-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxalde-hyde, 2-amino-3-formylchromone and its 8-allyl analog, 3-cyanochromone and its 8-allyl analog. Structures of the newly synthesized products have been deduced from their elemental analysis and spectral data.
%K ¦Â-ketoacid
%K Quinolinone
%K Chromone
%K Cyclocondensation
%K Knoevenagel condensation
%U http://www.eurjchem.com/index.php/eurjchem/article/view/91