Polycyclic systems: Synthesis of isoindolo[2,1‐ b ]‐pyrrolo[1,2‐ d ][2,4]benzodiazocine and isoindolo‐[1,2‐ d ]pyrrolo[1,2‐ a ] [1,5]benzodiazocine

The synthesis of isoindolo[2,1‐ b ]pyrrolo[1,2‐ d ][2,4]benzodiazocine 7 and isoindolo[1,2‐ d ]pyrrolo[1,2‐ a ]‐[1,5]benzodiazocine 13 are described starting from 2‐(2‐methoxycarbonyl)benzylphthalimide 1a and ethyl α‐bromohomophthalate 9 respectively.