An efficient protocol for the synthesis of novel hitherto unknown substituted and unsubstituted phenyl pyridyl selenides from dipyridyl/diphenyl diselenides and phenyl/pyridyl halides in the presence of copper catalysed system, Cu 2 O/Mg/bpy is being presented. All the synthesized selenides are either light yellow coloured liquids or low melting solids. All the newly synthesized compounds have been thoroughly characterized ...