Synthesis of pyrrolo[3,4-c]quinolines by 1,5-electrocyclisation of non-stabilized azomethine ylides.
In: Tetrahedron (Tetrahedron), Jg. 61 (2005) ; Nr. 34, S. 8199-8205
Zeitschriftenaufsatz / Fach: Chemie
A new route to the pyrrolo[3,4-c]quinoline ring system was developed via the 1,5-dipolar electrocyclization reactions of azomethine ylides derived from easily available 3-formylquinoline derivs. The intermediacy of azomethine ylides was shown by the trapping of the proposed dipoles with N-phenylmaleimide.