Potassium Carbonate → HCID 58107403, compound

Participants

Reaction Conditions

Reaction Steps

2-Chloro-N-dimethylaminomethylene-5-(4-hydroxy-benzoyl)-benzenesulfonamide (250 mg, 0.68 mmol) is dissolved in N,N,-dimethylformamide (5 mL). Potassium carbonate (235 mg, 1.7 mmol) is then added followed by (3-bromo-propyl)-benzene (135 mg, 0.68 mmol). The reaction is heated to 65° C. for 18 hours. The reaction mixture is diluted with water and extracted with ethyl acetate, the organic layer is separated and concentrated in vacuo. The crude ether is purified by column chromatography (gradient of ethyl acetate in hexanes 25-75%). The residue is dissolved in ethanol (3 mL), treated with concentrated HCl (400 μl) and heated to reflux for 2.5 hours after which the reaction is allowed to cool to ambient temperature overnight. The volatiles were removed in vacuo and the crude sulfonamide is purified by column chromatography (gradient of ethyl acetate in hexanes 20-70%) affording 10 mg of the title compound. 1H NMR (DMSO) 2.02-2.11 (m, 2H), 2.76 (t, 2H, J=7.16 Hz), 4.10 (t, 2H, J=6.41 Hz), 7.10 (d, 2H, J=8.67 Hz), 7.17-7.32 (m, 7.75-7.91 (m, 6H), 8.24 (d, 1H, J=1.88 Hz). MS (m/z): 430 (M+1).

Provenance & Evidence