1,3,4-Oxadiazole derivatives are considered as important compounds due to their pharmaceutical, biological, corrosion inhibition and electron transporting properties. Especially, they can be used in electronic and optoelectronic applications consisting π-conjugated organic materials.
In this work, we prepared di-phenyl-phenothiazyl-oxadiazole derivatives (DPPO), a new green-emitting material with donor-acceptor architecture containing phenothiazine core using previous synthetic method with simple modifications. The modified synthetic method allows a concise, highly efficient, solvent-free synthesis of DPPO derivatives from hydrazide through an N-acylhydrazone intermediate. Newly synthesized several DPPO derivatives have been tested for their thermal, optical and electroluminescent characteristics using organic light-emitting diodes (OLEDs).