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St Metal complexes of 2hydroxy5bromo acetophenonc oxime
Composition of the distillate fractions from zelten crude oil Lybia
Complexes of some transition metal ions with 2pyridine ethanol
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01 mole absorption acceptor acetic acid adducts Ain Shams University alcohol alumina amides amino acid analysis aromatic atoms band benzene bonding boron Cairo Calcd calcination carbon carbonyl catalyst Centre chelates Chem chemical Chemistry Department chloride chromatographic chromia clays complexes compounds concentration constants corresponding crystallized derivatives determined dioxane dipeptide donor effect Egypt El-Naggar epoxidized ester ethanol ether formation ethyl ethyl acetate ethylene Experimental Ezzo filtered fractions give hydrazine hydrate hydrogen hydrolysis increase Inorg investigation ions ligand metal method methyl ester molecular molecule nitrogen obtained oxadiazoles oxide oxygen peptide phosphite potentiometric precipitated prepared present procedure proton pyrazole pyridine react reaction mixture reaction temperature reagent recrystallized refluxed residue resin revised form room temperature samples showed singlet sodium solid solution solvent spectrum structure studied substituents synthesis thiourea titration trimethyl phosphite values wide-boiling yield