Hydrazine → HCID 15730198, compound

Participants

Reaction Steps

2,3-Dihydroxy-5-sulfobenzoic acid, methyl ester, monopotassium salt (2.7 g, 9.4 mmole) and neat hydrazine (0.88 ml, 28 mmoles) in 100 ml of methanol were refluxed for 48 hours. The resulting white precipitate was filtered, dried, and dissolved in water (10 ml). Acidification to pH=2.5 with 2N hydrochloric acid, filtering and drying gave 940 mg of the title compound as a solid.

Provenance & Evidence