5-Methoxy-1H-pyrrolo[3,2-b]pyridine

111795-99-4

17288-40-3

GENERAL METHOD: 6-methoxy-3-nitropyridine-2-acetonitrile derivative 13a or 13b (12.9 mmol) was dissolved in ethanol or methanol (40 mL) and a catalytic amount of 10% palladium carbon was added. The reaction mixture was placed in a Paar hydrogenation unit and hydrogenated at room temperature for 24 hours. Upon completion of the reaction, the catalyst was removed by filtration and the solvent was removed by concentration under reduced pressure. The resulting residue was purified by column chromatography with the eluent dichloromethane/ethyl acetate (95/5 for compound 14a) or (6/4 for compound 14b).