Molecular scaffolds containing α-aminonitriles readily undergo decyanation under reductive environment. However, considering the product of our ROI (Scheme 1), decyanation mechanism is not possible. In order to rationalize the formation of Py-N-ene, we subjected two structural analogs of 4-BrPyCN to the same experimental conditions (entry 2 and entry 3 in Table ) and found that both the structural analogs remained unreacted instead of yielding Py-N-ene. This indicates the importance of hydrogens alpha to the pyrazolyl nitrogen for the formation of Py-N-ene.