Ammonia → 2-(1,1-Difluoroethyl)-5-Methyl-N-[4-(Trifluoromethyl)phenyl][1,2,4]triazolo[1,5-A]pyrimidin-7-Amine

Participants

Reaction Steps

To a suspension of Intermediate 3 (10 g, 43 mmol) in ethanol (150 mL), 4-(trifluoromethyl)aniline (ALDRICH, 6.93 g, 43 mmol) was added and the mixture was stirred at room temperature for 1 h. 7M Ammonia in MeOH (6.14 mL, 43 mmol) was added to neutralize the hydrochloride salt and solvent was removed in vacuo. The crude mixture was purified by flash chromatography (Si, eluting with Hexane/EtOAc mixtures from 95:5 to 40:60%) to yield the title compound as a yellow solid.

Provenance & Evidence