Sodium hydride → tert-butyl {5-(4-fluorobenzyl)-3-[1-(4-methoxybenzyl)-1H-1,2,3-triazol-4-yl]-1H-pyrazol-1-yl}acetate

Participants

Reaction Steps

To a solution of 4-[5-(4-fluorobenzyl)-1H-pyrazol-3-yl]-1-(4-methoxybenzyl)-1H-1,2,3-triazole (19.0 g, 0.052 mol) in anhydrous THF (100 mL) was added NaH (2.6 g, 0.06 mol) at 0° C. and the mixture was stirred at RT for 2 hours. tert-butyl bromoacetate (12.5 g, 0.057 mol) was then added at 0° C. and the mixture was stirred at RT for 2 hours. The mixture was evaporated and the residue was purified via column chromatography (silica gel, EtOAc/Petroleum ether 1:1) to yield the title compound (20.0 g, 76.0%) as a yellow solid.

Provenance & Evidence