反应详情

Di-tert-butyl 1-(2,6-difluoro-4-methoxyphenyl)hydrazine-1,2-dicarboxylate (616 mg, 1.64 mmol) was heated in 4 M HCl in dioxane (5 mL, 20 mmol) at reflux. The solution over time became a suspension. At 30 min, the reaction was cooled, diethylether was added, and the solid was collected with a medium frit, washing with diethylether. This gave (2,6-difluo-4-methoxy-phenyl)-hydrazine hydrochloride (0.246 g, 86%) as a tan solid. 1H NMR (400 MHz, DMSO-d6, δ): 9.75 (br. s., 3H) 7.46 (s, 1H) 6.79-6.90 (m, 2H) 3.78 (s, 3H).

1. temperatureat reflux
2. temperaturethe reaction was cooled
3. customthe solid was collected with a medium frit
4. washwashing with diethylether