Methyl isothiocyanate → 4-[4,5-Bis-(4-chloro-phenyl)-2-(2-ethoxy-4-trifluoromethyl-phenyl)-4,5-dihydro-imidazole-1-carbonyl]-piperazine-1-carbothioic acid methylamide

Participants

Reaction Steps

[4,5-Bis-(4-chloro-phenyl)-2-(2-ethoxy-4-trifluoromethyl-phenyl)-4,5-dihydro-imidazol-1-yl]-piperazin-1-yl-methanone (279 mg, 0.47 mmol, example 8A) was dissolved in methylene chloride (3 mL) and methylisothiocyanate (64 uL) was added. After stirring 3 h, the reaction mixture was concentrated to dryness. Purification of the crude residue by flash chromatography (silica gel) eluting with ethyl acetate and hexanes gave 4-[4,5-bis-(4-chloro-phenyl)-2-(2-ethoxy-4-trifluoromethyl-phenyl)-4,5-dihydro-imidazole-1-carbonyl]-piperazine-1-carbothioic acid methylamide (195 mg). LR-MS: 664.4 [(M+H)+].

Provenance & Evidence