Hydrazine hydrate (1:1) → N-(6-Chloro-pyridin-3-ylmethyl)-N'-(4-fluoro-3-trifluoromethylphenyl)-6-hydrazino-[1,3,5]triazine-2,4-diamine

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Reaction Steps

To a solution of 6-Chloro-N-(6-chloropyridin-3-ylmethyl)-N′-(4-fluoro-3-trifluoromethylphenyl)-[1,3,5]triazine-2,4-diamine (XVIII) (3.0 g, 6.9 mmol) in dioxane (30 mL) was added hydrazine hydrate (2 mL), and the mixture stirred at ambient temperature for 30 min. The mixture was diluted with water, the resulting slurry stirred for 10 min and filtered under vacuum to give a white solid. This solid was washed with water and dried under vacuum to give N-(6-chloro-pyridin-3-ylmethyl)-N′-(4-fluoro-3-trifluoromethylphenyl)-6-hydrazino-1,3,5-triazine-2,4-diamine (XIX) (2.89 g, 97% yield): 1H NMR (CDCl3); δ 9.40 (m, 1H), 8.5-7.5 (m, 4H), 7.45 (m, 2H), 7.33 (m, 2H), 4.49, m, 2H), 4.17 (bs, 2H); ESI/MS 429 (M+H), 427 (M−H).

Provenance & Evidence