“Super stable” Blatter radicals through ArLi addition: surprising chemistry of 7-(trifluoromethyl)benzo[e][1,2,4]triazine

Abstract

Addition of PhLi to 7-(CF₃)benzo[e][1,2,4]triazine at −78 °C gives the “super stable” Blatter radical in high yields, while above −5 °C two additional products are formed. XRD analysis revealed the formation of a “trimer” and a benzo[f][1,2,4]triazepine via a novel mechanism. The latter is formed from the anion generated from the isolated radical, which suggests its instability in organic batteries.