Metalated Azolo[1,2,4]triazines. I. Synthesis of 2-(6-tert-Butyl-5-oxo-4,5-dihydro-1,2,4-triazin-3(2H)-ylidene)acetonitriles via Ring Opening Degradation of 3-tert-Butyl-7-lithio-4-oxo-4H-pyrazolo[5,1-c][1,2,4]triazin-1-ides

Ivanov, S. M., & Shestopalov, A. M. (2019). Metalated Azolo[1,2,4]triazines. I. Synthesis of 2-(6-tert-Butyl-5-oxo-4,5-dihydro-1,2,4-triazin-3(2H)-ylidene)acetonitriles via Ring Opening Degradation of 3-tert-Butyl-7-lithio-4-oxo-4H-pyrazolo[5,1-c][1,2,4]triazin-1-ides. Journal of Heterocyclic Chemistry, 56(8), 2210–2220. https://doi.org/10.1002/jhet.3615