Synthesis of benzo[g]quinoline derivatives

4-Amino-substituted benzo[g]quinolines have been synthesized for the first time by the condensation of 4-oxo-1,2,3,4-tetrahydrobenzo[g]-quinoline with amines. This reaction is characterized by the addition of the amine, the splitting out of water, and the complete aromatization of the initial hydrogenated heterocyclic system. The UV spectra of the compounds obtained are similar to those of 4-amino-substituted quinolines, their maxima being displaced somewhat into the long-wave region.For part III, see [2].