Department of Chemistry, Facultyof Science, Damietta University, Damietta, Egypt;
Department of Chemistry, Facultyof Science, Damietta University, Damietta, Egypt.;
Pyrrole; Pyridine; Pyrazolo4; 3-b; Pyridine; Pyrano3; 2-c; Quinoline; Naphthopyran; Naphthodipyrans; and; Coumarin;