Methanol → HCID 178497357, compound

Participants

Reaction Steps

To 2-(Chloromethyl)-1H-benzimidazole-5-carboxylic acid (4) (0.5 g; 2.4 mmole) suspended in anhydrous methanol (20 ml) was added dropwise Sulfuric acid (0.2 ml). The reaction mixture was maintained at reflux for 16 hours. The solvent was evaporated to give the crude oily product, which was purified by column chromatography (silica, 10% methanol: dichloromethane) to obtain 0.4 g (71% yield) of product 5.

Provenance & Evidence