Citric Acid → HCID 19083176, compound

Participants

Reaction Conditions

Reaction Steps

A solution containing 5 g (21.8 mmol) of 4-fluoro-1-methyl-1H-indazole-3-sulfonamide and 12.6 g of sodium methoxide (a 28% methanol solution) (65 mmol) in DMSO (50 ml), was stirred at 130° C. for one hour. After confirming the disappearance of the starting material by thin layer chromatography (TLC), the mixture was poured into ice water and acidified with citric acid. Formed crystals were collected by filtration and washed with water and IPE to obtain 3.2 g (yield: 60.9%) of the desired product. Melting point: 268°-270° C.

Provenance & Evidence