Abstract A series of substituted 3-and 4-(3-aminophenyl) pyridines has been prepared as intermediates for the synthesis of some 1-alkyl-1, 4-dihydro-4-oxo-7-pyridinyl-3- quinolinecarboxylic acids. The Hantzsch, Hauser and other pyridine syntheses were used. 4- (3-Aminophenyl) pyridine was prepared via 3-(4-pyridinyl)-2-cyclohexen-1-one using the Semmler-Wolff reaction.
