Furo[3,2‐e]pyrrolo[1,2‐α][1,4]diazepine and derivatives

Abstract
The 5,10‐dihydro‐4H‐furo[3,2‐e]pyrrolo[1,2‐α][1,4]diazepin‐5‐one (7) and furo[3,2‐e]pyrrolo[1,2‐α][1,4]diaze‐pine (10) are synthesized from suitable isocyanates 3a,b in acetic acid. The reactivity of 10 (C‐ and N‐alkyla‐tion) is investigated.