5-[2-(benzyloxy)-5-(trifluoromethoxy)phenyl]-1-methyl-1H-pyrazole → 2-(1-methyl-1H-pyrazol-5-yl)-4-(trifluoromethoxy)phenol

Participants

Reaction Steps

A solution of 5-[2-(benzyloxy)-5-(trifluoromethoxy)phenyl]-1-methyl-1H-pyrazole (Preparation 534, 2.3 g, 6.6 mmol) in methanol (25 mL) was degassed with argon before the addition of palladium on carbon (10%, 230 mg). Reaction mixture was stirred at room temperature under hydrogen atmosphere (using a balloon) for 16 hours. After filtration through Celite™, filtrate was concentrated in vacuo to afford the title compound as a white solid, 1.6 g, 94% yield.

Provenance & Evidence