Published July 31, 1967
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Synthesis of 4-Anilino 8-Hydroxy Quinolines
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4,7-Dichloro-8-aminoquinoline when treated with nitrous acid afforded 6,9-dichloro triazolo-(4,5,1-ij) quinoline 3-ium hydroxide, which on condensation with anilines gave the 7-chioro 4-anilino 8-hydroxy-quinolines.