Effect of a pyridine substituent on spectral characteristics of benzo[f]quinolines with an annelated alicyclic ring
Reaction of N-(2-naphthyl)formimidoyl-3-pyridine with cyclic ketones leads to the formation of 1,2-cycloalkyleno-3-(3-pyridyl)benzo[f]quinolines. Aminoketones, namely, 2-[(3-pyridyl)(2-naphthylamino)methyl]cycloalkanones, are intermediates in this reaction. The absorption-luminescence, PMR, and mass spectra of these newly synthesized compounds have been investigated.