1-Methyl-5-{[4-(trifluoromethyl)phenyl]ethynyl}-1H-pyrazole → 1-Methyl-5-{2-[4-(trifluoromethyl)phenyl]ethyl}-1H-pyrazole

Participants

Reaction Steps

10% Palladium carbon (1.00 g) was added to a methanol (150 mL) solution of 1-methyl-5-{[4-(trifluoromethyl)phenyl]ethynyl}-1H-pyrazole (2.33 g), and the obtained solution was then stirred under a hydrogen atmosphere at a room temperature overnight. Thereafter, the reaction solution was filtrated with Celite, and the filtrate was then concentrated under a reduced pressure, so as to obtain the title compound (1.90 g) in the form of a colorless oily substance.

Provenance & Evidence