1H-Imidazole-2-methanol, 5-((3,5-dichlorophenyl)thio)-4-(1-methylethyl)-1-((4-nitrophenyl)methyl)- → 1H-Imidazole-2-methanol, 1-((4-aminophenyl)methyl)-5-((3,5-dichlorophenyl)thio)-4-(1-methylethyl)-

Participants

Reaction Steps

In ethyl acetate was dissolved 800 mg of 5-(3,5-dichlorophenylthio)-2-hydroxymethyl-4-isopropyl-1-(p-nitrobenzyl)-1H-imidazole (103a), and platinum sulfided carbon was added. After replacement with hydrogen atmosphere, the mixture was catalytically hydrogenated under atmospheric pressure at room temperature. After 1 hour, the mixture was filtered through Celite, the filtrate was distilled off under reduced pressure, and to the residue, diethyl ether was added. The precipitated crystals were filtered, and 579 mg of 1-(p-aminobenzyl)-5-(3,5-dichlorophenylthio)-2-hydroxymethyl-4-isopropyl-1H-imidazole (104a) was obtained (yield 78%). mp 130° C. (decomp.).

Provenance & Evidence