Hydrochloric Acid → HCID 178433297, compound

Participants

Reaction Steps

A solution of 2,2,2-trifluoroethylamine (4.0 g) from the hydrochloride and potassium hydroxide in methanol (45 ml) and water (5 ml) was added slowly to a suspension of 1-nitro-2-methylsulphinyl-2-methylthio ethylene (3.6 g) in methanol (150 ml) at 0°. The mixture was stirred at room temperature for 24 hours, concentrated and dissolved in chloroform. Filtration, redissolution in a small volume of chloroform and precipitation with hexane afforded an orange crystalline solid. This was dissolved in methanol (25 ml) and a solution of 4-methyl-5-[(2-aminoethyl)thiomethyl]imidazole (2.1 g) in methanol (25 ml) was added. The resulting solution was heated under reflux for 2 hours and set aside at room temperature for 18 hours. Concentration followed by chromatographic purification on a column of silica gel with chloroform-methanol (15.1) as eluant and final crystallisation from ethanol afforded the title compound as a hemi-ethanolate (2.4 g) m.p. 161° (dec).

Provenance & Evidence