Diisopropylethylamine → [1-(3,4-Difluoro-benzyl)-piperidin-4-yl]-(5-trifluoromethyl-[1,3,4]thiadiazol-2-yl)-amine

Participants

Reaction Conditions

Reaction Steps

A mixture of piperidin-4-yl-(5-trifluoromethyl-[1,3,4]thiadiazol-2-yl)-amine (D4) (0.040 g, 0.16 mmol), 3,4-difluorobenzyl bromide (0.024 ml, 0.19 mmol) and diisopropylethylamine (0.042 ml, 0.24 mmol) in acetonitrile (3 ml) was stirred at 100° C. for 5 min., under microwave irradiation. After cooling to room temperature, the reaction mixture was diluted with dichloromethane and extracted with a 10% solution of ammonium chloride (25 ml). The organic layer was separated, dried (Na2SO4) and the solvent evaporated in vacuo. The crude product was purified by flash column chromatography (silica gel; 0-3% ammonia in methanol (7M)/dichloromethane) to yield E5 (0.048 g, 80%) as a solid. C15H15F5N4S requires 378. Found 379 (MH+).

Provenance & Evidence