Quinolone(III) : Synthesis of pyrido[2,3-h]quinolone and pyrido[2,3-g]quinolone-3-carboxylic acid derivatives as potential antibacterials The synthesis of 3-ethenyl, 3-ethynyl, 3-aryl, and 3-cyclopropyl-2, 4, 5-trifluorobenzoic acids from 1-bromo-2, 4, 5-trifluorobenzene and 2, 4, ...