1,2-Dimethoxyethane → HCID 44177698, compound

Participants

Reaction Conditions

Reaction Steps

To an 8 mL glass vial was added 3-(1-(4-bromo-2-chlorophenyl)-2-(2-chlorophenyl)-1H-imidazol-4-yl)-5-(trifluoromethyl)isoxazole (120 mg, 236 μmol), 3-methylsulfonylphenyl boronic acid (52 mg, 260 μmol), PdCl2dppf (20 mg, 10 mol %), K2CO3 (100 mg, 708 μmol), 1,2-dimethoxyethane (6 mL) and H2O (1.5 mL). The reaction solution was allowed to stir at 80° C. for 2.5 hrs. The reaction solution was diluted with EtOAc (30 mL) and filtered through a celite padded Buchner funnel to remove spent Pd. The filtrate was transferred to a separatory funnel and washed with aq NH4Cl (40 mL) and aq NaCl (40 mL). The organic phase was dried over Na2SO4, filtered, concentrated on the Rotavapor and chromatographed through a 12 g SiO2 column using a mobile phase gradient of 5% EtOAc to 100% EtOAc to afford 72 mg (53% yield) of the title compound. MS (ESI) 578.0, 580.0 [M+H]+; 1H NMR (400 MHz, DMSO-d6) δ 8.93 (s, 1H), 8.38 (s, 1H), 8.21 (s, 1H), 8.13 (d, J=8 Hz, 1H), 8.08 (s, 1H), 7.96 (d, J=8 Hz, 1H), 7.71-7.79 (m, 2H), 7.69 (d, J=7 Hz, 1H), 7.62 (d, J=8 Hz, 1H), 7.48 (m, 1H), 7.36-7.42 (m, 2H), 3.34 (s, 3H) ppm; 19F NMR (400 MHz, DMSO-d6) 6-81.9 ppm.

Provenance & Evidence