Hydrochloric Acid → HCID 178526496, compound

Participants

Reaction Conditions

Reaction Steps

Hydrazine monohydrate (19 ml) was added to an EtOH (15 ml) solution containing methyl 2-chloro-5-nitrobenzoate (10 g), followed by stirring at 90° C. for 1 hour. The reaction solution was adjusted to room temperature. Water and concentrated hydrochloric acid (32 ml) were added dropwise to the reaction solution. A solid precipitate was collected by filtration and washed with water. A brown solid of 5-nitro-1H-indazol-3-ol (5.42 g) was thus obtained.

Provenance & Evidence