RECEIVED JULY 14, 1941 (2) Rohm and Haas Research Assistant. ... 2-Methyl-5-hydroxybenzimidazole Five grams of 3,4-di- (acety1amino)-1-acetoxybenzene in a mixture of 100 cc. of alcohol and 7.5 cc. of concentrated hydrochloric acid was refluxed for two hours. The alcohol was removed by distillation, the residue dissolved in 50 cc. of water, neutralized with sodium carbonate, and cooled. The solid (2.3 9.) was crystallized from 1% sodium hydro- sulfite, using ...
