Phosphorus oxychloride → HCID 178497361, compound

Participants

Reaction Steps

3.9 g of methyl 2-hydroxy-1H-benzimidazole-5-carboxylate and 50 ml of phosphorus oxychloride are stirred at 10° C. for 6 hours. The resulting thick slurry is, after cooling, stirred cautiously into 500 ml of ice-water, and the solid is filtered off with suction after one hour, washed with water and dried under reduced pressure.

Provenance & Evidence