Hydrochloric Acid → HCID 19825145, compound

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Reaction Steps

To 4-(2,4-Dichlorophenyl)-1-(dimethylsulphamoyl)imidazole, (8.0 g) in tetrahydrofuran (125ml), maintained under a dry nitrogen atmosphere at -60° was added 2.6M butyllithium in hexane (10.57 ml). The solution was stirred and after a short time dimethylformamide (2.9 ml) was added. The mixture was warmed slowly to room temperature and then added to dilute hydrochloric acid. The product was extracted with ethyl acetate and the extract washed with water, dried the solvent evaporated and the solid residue recrystallised from toluene to give 4-(2,4-dichlorophenyl)-1-(dimethylsulphamoyl)-2-formylimidazole, m.p. 148°-157° (dec.).

Provenance & Evidence