Diethyl Ether → HCID 86685863, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of Intermediate 11C (1.62 g, 4.89 mmol) in anhydrous THF (25 mL) at −78° C. was added dropwise 0.5 M p-tolylmagnesium bromide in ether (25 mL, 12.5 mmol). The reaction was stirred at −78° C. for 40 min, then gradually warmed to rt. The reaction was poured into 1:1 sat'd aq NH4Cl and water (60 mL). The mixture was extracted with EtOAc. The organic layer was washed with sat'd aq NaCl, dried over MgSO4, filtered and concentrated. The residue was purified by silica gel chromatography (eluted with EtOAc in hexanes) to provide Intermediate 11D (1.34 g, 76%) as a light brown solid. LCMS Anal. Calc'd for C21H21F3O2 362.39, found [M+H] 363.2. 1H NMR (500 MHz, CDCl3) δ 2.01-2.11 (m, 2H), 2.29-2.37 (m, 2H), 2.42 (s, 3H), 2.58 (s, 3H), 4.07 (t, J=6.05 Hz, 2H), 6.92 (d, J=8.80 Hz, 2H), 7.14 (s, 1H), 7.23-7.34 (m, J=8.25 Hz, 2H), 7.55 (d, J=8.80 Hz, 2H), 7.90 (d, J=8.25 Hz, 2H).

Provenance & Evidence