Trifluoroacetic acid → (3-tert-butyl-1-(4-fluorophenyl)-1H-pyrazol-5-yl)methanamine

Participants

Reaction Steps

In 3 mL of dichloromethane, tert-butyl (3-tert-butyl-1-(4-fluorophenyl)-1H-pyrazol-5-yl)methylcarbamate (232 mg, 0.668 mmol, 1 equiv.) was dissolved and trifluoroacetic acid (0.496 mg, 0.331 ml, 6.5 equiv.) was added. The reaction mixture was stirred overnight at room temperature, extracted with aqueous sodium carbonate (c=1 mol/L), dried over magnesium sulfate and evaporated to give (3-tert-butyl-1-(4-fluorophenyl)-1H-pyrazol-5-yl)methanamine (127 mg) which was used without further purification.

Provenance & Evidence