130436-50-9Relevant academic research and scientific papers
Ring Concentration of 1,2,4-Triazepinobenzimidazol-4-ones. New Fused β-Lactams
Romano, Claudia,Cuesta, Elena de la,Avendano, Carmen
, p. 74 - 78 (2007/10/02)
Isolation of uncommon fused tetracyclic β-lactams 2 strongly supports a previously unconfirmed ionic mechanism for the ring concentration of nitrogen-bridged azolo-1,2,4-triazepin-3-ones in acetic anhydride.Procedure for the synthesis in good yields of substituted-pyrazolobenzimidazoles from the corresponding triazepinobenzimidazoles are reported.
