反应详情

40 ml of hydrazine hydrate were added to a solution of 30 g (0.15 mol) of methyl 3-nitrosalicylate in 200 ml of anhydrous tetrahydrofuran (THF). After dilution with THF, the resulting suspension was stirrable; it was refluxed for approximately 18 hours. After cooling, the batch was poured onto ice. The aqueous solution was rendered neutral by adding NaOH solution. The crystals which precipitated were filtered off and washed with water. After drying, 27 g (90%) of the title compound were obtained.

1. temperatureit was refluxed for approximately 18 hours
2. temperatureAfter cooling
3. additionthe batch was poured onto ice
4. customThe crystals which precipitated
5. filtrationwere filtered off
6. washwashed with water
7. customAfter drying