199390-41-5Relevant academic research and scientific papers
Synthesis of imidazo[1,5-c][1,3]benzodiazepines via an Aza-Wittig/carbodiimide-mediated annulation process
Molina, Pedro,Tarraga, Alberto,Curiel, David,De Arellano, Carmen Ramirez
, p. 15895 - 15902 (1997)
The first synthesis of the imidazo[1,5-c][1,3]benzodiazepine ring system has been carried cut by reaction of the iminophosphorane derived from the (Z)-5-(o-azidoarlylidene)hydantoin with isocyanates. The isomeric (E)-tributyliminophosphorane undergoes intramolecular aza Wittig reaction to give the imidazo[4,5-b]quinolin-2-one ring.
