Picryl derivatives of benzo[1,2-d:4,5-d′]bistriazole and benzo[1,2-d:4,5-d′]bistriazole-4,8-dione

In a previous communication from this laboratory it was reported that benzotriazole reacts with both picryl chloride and picryl fluoride to give 1-picrylbenzotriazole exclusive of any 2-picrylbenzotriazole (3). As an extension of this study we have examined the reactions of benzo1,2-d:4,5-d′]bistriazole (I) and benzo1,2-d:4,5-d′]bistriazole-4,8-dione (II) with picryl fluoride.