Abstract
1, 5-Naphthyridine (I) and 1, 8-naphthyridines (III to VI) were synthesized by the reaction of 3-or 2-aminopyridines with glycerol, in the presence of sodium m-nitroben-zenesulfonate, boric acid, and ferrous sulfate, in sulfuric acid. Application of the same method to 3-and 4-aminoqinolines afforded 4, 6-phenanthroline (VIII) and 5-methyl-1, -6-phenanthroline (IX). 1, 6-Naphthyridine (II) was obtained in a high yield by the reaction of 4-aminopyridine and glycerol, in the presence of sulfo-mix, boric acid, and ferrous sulfate.
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