1-Benzyloxy-2,3-difluoro-6-nitrobenzene → 4-Amino-2,3-difluorophenol

Participants

Reaction Steps

To a solution of a mixture of 1-(benzyloxy)-2,3-difluoro-4-nitrobenzene and 2-(benzyloxy)-3,4-difluoro-1-nitrobenzene (6.54 g) in methanol (200 ml) was added 10% palladium on carbon (654 mg), followed by stirring under a hydrogen atmosphere at room temperature for 26 hr and 50 min. The atmosphere in the reaction vessel was replaced with nitrogen to stop the reaction, and the catalyst was filtered off through Celite. The filtrate was concentrated under reduced pressure to provide the titled compound as a black solid (3.52 g) which was a mixture of 6-amino-2,3-difluorophenol.

Provenance & Evidence