O. Cherkaoui et al., NEW S-TRIAZOLOBENZODIAZEPINE DERIVATIVE .3. SYNTHESIS OF O-[4,3-A]BENZIMIDAZOLO-[1,2-D][1,4]BENZODIAZEPINES, Synthetic communications, 25(7), 1995, pp. 1027-1033
A 7H-benzimidazolo[1,2-d] [1,4]benzodiazepin-6(5H)-one was isolated in
high yield from a condensation reaction of 2-(o-aminophenyl)benzimida
zole with bromoacetyl bromide. The reactivity of 7H-benzimidazolo[1,2-
d] [1,4] benzodiazepin-6(5H)-one have been studied.