反应详情

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).

1. temperaturethe reaction is cooled to 0° C.
2. customquenched with NH4Cl
3. temperaturewarmed to room temperature
4. concentrationThe reaction mixture is concentrated
5. customthe residue is partitioned between Et2O and 1N HCl
6. extractionThe aqueous layer is extracted with Et2O
7. washthe combined organic layers are washed with brine
8. dry with materialdried (MgSO4)
9. filtrationfiltered
10. concentrationconcentrated
11. customchromatographed
12. washeluting with 0% to 30% EtOAC/Hexane