反应详情

温度

10 °C

1,2-Dimethyl-5,6-dinitrobenzimidazole was reduced with tin in hydrochloric acid. The solution obtained from the reduction was diluted with water, cooled to 10° C., and treated with 40% NaOH. The precipitate which formed was filtered, washed with water and recrystallized from alcohol to yield 1,2 dimethly-5,6 diaminobenzimidazole.

1. customThe solution obtained from the reduction
2. customThe precipitate which formed
3. filtrationwas filtered
4. washwashed with water
5. customrecrystallized from alcohol