Hexane → HCID 117899720, compound

Participants

Reaction Conditions

Reaction Steps

49.7 g (225 mmol) of 4-methyl-3-(2,2,2-trifluoroethylthio)aniline was suspended in 500 ml of a 15% aqueous sulfuric acid solution. Thereinto was dropwise added an aqueous solution obtained by dissolving 18.6 g (270 mmol) of sodium nitrite in 100 ml of water, at 0 to 5° C. with ice-cooling. After the completion of the dropwise addition, the mixture was stirred for 1 hour with the temperature being kept. The reaction mixture was gradually dropped at 120° C. into a solution obtained by dissolving 71.8 g (450 mmol) of anhydrous copper sulfate in 400 ml of 60% sulfuric acid. The mixture was allowed to cool to room temperature and subjected to extraction with ethyl acetate. The organic phase obtained was dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The crude product obtained was purified by column chromatography (developing solvent: a mixed solvent of n-hexane:ethyl acetate=10:1), to obtain 19 g (yield: 38%) of an intended product.

Provenance & Evidence