Hydrochloric Acid → HCID 136161323, compound

Participants

Reaction Steps

A mixture of 2-(5-methylsulfanyl-isoxazol-3-yl)-1-(2-trimethylsilanyl-ethoxymethyl)-1H-benzoimidazole (160 mg, Reference Example 12), methanol (12 mL) and concentrated aqueous hydrochloric acid (2.45 mL) were heated at reflux for four hours, then cooled and then evaporated. The residue was treated with aqueous sodium bicarbonate and the mixture was extracted with ethyl acetate. The extracts were dried and then evaporated to give 2-(5-methylsulfanyl-isoxazol-3-yl)-1H-benzoimidazole (96 mg) as an off white solid, mp 179-181° C. 1H-NMR [(CD3)2SO]: δ 4.65 (s, 3H), 9.00 (s, 1H), 9.15-9.6 (m, 4H).

Provenance & Evidence