Sodium Hydroxide → HCID 9944509, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 4-hydroxy-2-methyl-5-nitro(N,N-dimethyl)benzenesulfonamide (200 mg, 0.77 mmol) in dry DMF (2 mL) was added sodium hydroxide (74 mg, 1.85 mmol) and chlorodifluoroacetic acid (120 mg, 0.92 mmol). The resulting reaction mixture was stirred at 120° C. for 18 h. After cooling, the reaction was diluted with water and ethyl acetate, and the layers were separated. The organics were washed three times with 1 N NaOH, dried and concentrated. The residue was purified by flash chromatography (20% ethyl acetate/hexanes) to provide 4-difluoromethoxy-2-methyl-5-nitro (N,N-dimethyl)-benzenesulfonamide (51 mg, 21%) as a yellow solid, mp 125-126° C.

Provenance & Evidence