HCID 19770728, compound → HCID 19770729, compound

Participants

Reaction Steps

A solution of 3-nitro-5-ethyl-6-benzyloxymethyl-2(1H)-pyridinone (576 mg, 2.0 mmol) in tetrahydrofuran (15 mL) and methanol (15 mL) containing 10% palladium/charcoal (130 mg) was hydrogenated at atomspheric pressure, monitoring the progress by thin layer chromatography (tlc). Additional catalyst was added in 100 mg portions after day 2 and day 3. After 3-4 days, the catalyst was filtered and the solvents evaporated. The catalyst was vigorously washed with methanol/chloroform and combined solvents evaporated. The residue was triturated with methylene chloride and productcollected by filtration to give 136 mg of 90% pure product. This material was used without further purfification.

Provenance & Evidence