A novel practical synthesis of pyrrolo[1,2‐a]thieno[2,3‐e][1,4]diazepines

Abstract
In an investigation of new heterocyclic systems, a novel way to obtain pyrrolo[1,2‐a]thieno[2,3‐e][1,4]diazepine 8 was effected by ring closure to the appropriate nitroaldehyde compound which was synthesized in five steps from 3‐bromomethyl‐2‐nitrothiophene 1.