Triethylamine → [4,5-Bis-(4-chloro-phenyl)-2-(2-ethoxy-5-trifluoromethyl-phenyl)-4,5-dihydro-imidazol-1-yl]-(4-chloromethyl-phenyl)-methanone

4-Chloromethylbenzoyl chloride (140 mg, 0.74 mmol) was added to a cooled solution of triethylamine (0.20 mL, 1.44 mmol) and 4,5-bis-(4-chloro-phenyl)-2-(2-ethoxy-5-trifluoromethyl-phenyl)-4,5-dihydro-1H-imidazole (300 mg, 0.61 mmol). The reaction mixture was stirred at room temperature for 2 h. The reaction was diluted with methylene chloride and washed with water and brine, and dried over anhydrous sodium sulfate. The solvents were removed under reduced pressure and flash chromatography of the residue over silica gel using 10-25% ethyl acetate in hexanes gave [4,5-bis-(4-chloro-phenyl)-2-(2-ethoxy-5-trifluoromethyl-phenyl)-4,5-dihydro-imidazol-1-yl]-(4-chloromethyl-phenyl)-methanone (330 mg, 84%).

1. washwashed with water and brine
2. dry with materialdried over anhydrous sodium sulfate
3. customThe solvents were removed under reduced pressure and flash chromatography of the residue over silica gel using 10-25% ethyl acetate in hexanes

ORD-Eintrag

ord-80e82a77f2eb40519635ae3e4e0db735

Quelldatensatz

uspto-grants-2008_09

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US07425638B2