HCID 23512963, compound → HCID 23512981, compound

Participants

Reaction Steps

Pyridinium chlorochromate (7.55 g, 35.0 mmole) was added into a solution of N-(4-hydroxymethyl-benzofuran-7-yl)-methanesulfonamide (5.69 g, 23.3 mmole) in dichloromethane (350 mL). The reaction mixture was stirred at room temperature for 16 hr and was partitioned between dichloromethane and water. The organic extract was dried (anhydrous sodium sulfate) and concentrated under reduced pressure. The residue was purified by flash column chromatography over silica gel eluting with 50% ethyl acetate in hexane to give N-(4-formyl-benzofuran-7-yl)-methanesulfonamide as solid (4.8 g, 86%). 1H NMR (DMSO-d6) δ: 3.26 (s, 3H), 7.48 (d, 1H, J=8.20 Hz), 7.51 (d, 1H, J=2.10 Hz), 7.88 (d, 1H, J=8.20 Hz), 8.29 (d, 1H, J=2.1 Hz), 10.12 (s, 1H), 10.63 (s, 1H). M−H: 238.

Provenance & Evidence