| Summary: | [1,2,5]Oxadiazolo[3,4-<i>b</i>]pyrazines are of great interest due to their promising photophysical and electrochemical properties, as well their potential use in a wide range of electronic devices. Herein, we report on the preparation of the unexpected product derived from the interaction of 2′-([1,2,5]oxadiazolo[3,4-<i>b</i>]pyrazin-5-yl)-<i>N,N</i>-diphenyl-[1,1′-biphenyl]-4-amine with 2-cyanoacetic acid under basic conditions. The resulting product was characterized using <sup>1</sup>H and <sup>13</sup>C NMR spectra, high resolution mass spectrometry, Fourier-transform infrared spectroscopy (FTIR), and X-ray diffraction analyses. Furthermore, its photophysical and electrochemical properties were studied using cyclic voltammetry, UV–Vis, and emission spectroscopy. The experimental results have been further rationalized through theoretical DFT calculations.
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