Abstract
Pyrazinones were synthesized by reacting mesoionic azlactone [2‐aryl‐4‐methyl‐Δ2‐oxaxolin‐5‐one] and 1,4‐diazabutadienes in good yields at room temperature.
Acknowledgment
The authors thank the director, R. R. L. Jorhat, head of the Synthetic Organic Chemistry Division, the analytical chemistry division of this laboratory. Also, S. D. S. and P. G. thank Council of Scientific and Industrial Research (CSIR) for their fellowships.