Acetic Acid → 1H-Pyrrolo[2,3-b]pyridine-3-carbaldehyde

Participants

Reaction Steps

To 1H-Pyrrolo[2,3-b]pyridine (6, 16.0 g, 135 mmol) in water (110 mL), were added hexamethylenetetramine (26.0 g, 185 mmol), and acetic acid (55.0 mL, 967 mmol). The reaction was refluxed for 12 hours. Water (329 mL) was added and the reaction was cooled to room temperature. The reaction was filtrated and washed with water to give the compound (7, 15.0 g, 76%). MS (ESI) [M+H+]+=147.

Provenance & Evidence