1-{4-[3-(2,6-dichloro-phenyl)-5-isopropyl-3H-[1,2,3]triazol-4-ylmethoxy]-2-methyl-phenyl}-ethanone → 2-{4-[3-(2,6-Dichloro-phenyl)-5-isopropyl-3H-[1,2,3]triazol-4-ylmethoxy]-2-methyl-phenyl}-propan-2-ol

Participants

Reaction Steps

To a −78° C. solution of 1-{4-[3-(2,6-dichloro-phenyl)-5-isopropyl-3H-[1,2,3]triazol-4-ylmethoxy]-2-methyl-phenyl}-ethanone (500 mg, 1.19 mmol) in THF (12 mL) is added methylmagnesium bromide (2.0 mL, 5.98 mmol, 3.0 M in THF) dropwise. The reaction mixture is warmed to room temperature. After 4 h, the reaction is cooled to 0° C., quenched with NH4Cl and warmed to room temperature. The reaction mixture is concentrated and the residue is partitioned between Et2O and 1N HCl. The aqueous layer is extracted with Et2O and the combined organic layers are washed with brine, dried (MgSO4), filtered, concentrated and chromatographed eluting with 0% to 30% EtOAC/Hexane to yield the title compound (414 mg, 80%). 1H NMR (400 MHz, CDCl3) δ 7.49-7.46 (m, 2H), 7.43-7.38 (m, 1H), 7.23-7.19 (m, 2H), 6.70 (d, 1H, J=8.8 Hz), 4.89 (s, 2H), 3.20 (sept, 1H, J=6.6 Hz), 2.04 (s, 3H), 1.53 (s, 6H), 1.45 (d, 6H, J=6.6 Hz).

Provenance & Evidence