2-Mercaptoimidazole → 4-Bromo-2-(p-chlorophenyl)-1-[(imidazol-2-ylthio)methyl]-5-trifluoromethylpyrrole-3-carbonitrile hydrobromide

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Reaction Steps

A mixture of 4-bromo-1-(bromomethyl)-2-(p-chlorophenyl)-5-(trifluoromethyl)pyrrole-3-carbonitrile (0.88 g, 0.002 mol) and 4-imidazoline-2-thione (0.23 g, 0.002 mol) in isopropanol is heated at reflux temperature for 3 hours, cooled to room temperature and filtered. The filtercake is washed with isopropanol and air-dried to give the title product as a white solid, 0.81 g (75% yield), mp 221°-223° C.(dec).

Provenance & Evidence