KHAN, KHALID MOHAMMED; MAHWISH; ABDUL JABBAR; SHAHNAZ PARVEEN; RASHEEDA PARVEEN; SYED MOAZZAM HAIDER
(HEJ Research Institute of Chemistry, University of Karachi, Karachi., 2010-08-20)
The reaction of ethyl-4,6-dihydroxy-2-oxo-1-phenyl pyridine-3-carboxylate (3) with different diazotized substituted aromatic amine (2) yielded compound ethyl-4,6-dihydroxy-2-oxo-1-phenyl-5-arylazopyridine-3-carboxylate (4) ...