Benzenesulfonyl chloride → HCID 67273214, compound

Participants

Reaction Steps

To 4,5-dimethoxyindole (241 mg, 1.36 mmol) in 5 mL THF at 0° C. was added 82 mg (2.04 mmol, 1.5 eq) of sodium hydride, followed by benzenesulfonyl chloride (260 μL, 2.04 mmol, 1.5 eq). The reaction was warmed to room temperature over 5 h then quenched with H2O and concentrated. The residue was dissolved in CH2Cl2 and extracted with NaHCO3, H2O, aqueous NaCl, dried (Na2SO4), and concentrated. The product was purified by silica gel column chromatography (7/3 hexanes/EtOAc) to give 369 mg of 1-benzenesulfonyl-4,5-dimethoxy-1H-indole (86%).

Provenance & Evidence