Water → 1-(Phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridine-3-carbaldehyde

Participants

Reaction Steps

1H-Pyrrolo[2,3-b]pyridine-3-carbaldehyde (200 mg, 1.368 mmol) was dissolved in DCM (8 mL). Then tetra-n-butylammonium hydrogen sulfate (48.4 mg, 0.137 mmol), benzensulfonyl chloride (0.176 mL, 1.37 mmol) and NaOH 50% (0.263 mL, 3.3 mmol) were added. The RM was stirred at rt for 1 h. Water was added and it was extracted with DCM twice. The combined organic layers was washed with brine and dried over Na2SO4, filtered and evaporated to afford the title compound as a light yellow solid (tR 2.0 min (conditions 1), MH+=287).

Provenance & Evidence