Benzomorphan related compounds. XVII. Oxidative cyclization of N-arylethyl-6,7-benzomorphan

Article abstract of DOI:10.1002/jhet.5570200409

The synthesis of two new bridged polycyclic systems (I and II), possessing a rigid N-arylethylbenzomorphan structure, by mercuric acetate cyclization of the corresponding seco derivatives (IV and VI, respectively) is described. The relative configuration of these compounds and the preferred indolo[2,3-a]- or benzo[a]quinolizidine conformation is assigned.