1,5-ethano-2,3,4,5-tetrahydro-1H-3-benzazepines.

1,5-Ethano-2,3,4,5-tetrahydro-1H-3-benzazepine, from the LiA1H4 reduction of 2-benzyloxy-1,5-ethano-4-oxo-2,3,4,5-tetrahydro-1H-3-benzazepine, was converted to N-alkyl, aralkyl, cycloalkyl, and alkenyl derivatives which were inactive as morphine type analgetics in mice. The LiA1H4 reduction of 2-benzyloxy-1,5-etheno-4-oxo-2,3,4,5-tetrahydro-1H-3-benzazepine gave unstable products from which only the skeletally rearranged dihydro- and tetrahydrobenzo[e]isoindolines, were isolated.