Nitric Acid → HCID 70394524, compound

Participants

Reaction Steps

A solution of 30 parts of methyl 1-(1-cyclohexylbutyl)-2-mercapto-1H-imidazole-5-carboxylate in 150 parts of concentrated nitric acid and 100 parts of water was stirred for 1 hour at room temperature (intense reaction). The whole was cooled in crushed ice and treated with a sodium hydroxide solution. The product was extracted with 1,1'-oxybisethane. The extract was washed twice with water, dried, filtered and evaporated. The residue was converted into the nitrate salt in 2,2'-oxybispropane. The salt was filtered off and dried, yielding 27 parts (82.4%) of methyl 1-(1-cyclohexylbutyl)-1H-imidazole-5-carboxylate mononitrate; mp. 128.9° C. (compound 26).

Provenance & Evidence