Phosgene → HCID 12926635, compound

Participants

Reaction Steps

8.0 g. 2,3-Diamino-1-(2-hydroxy-3-tert.-butylaminopropoxy)-4-methylbenzene trihydrochloride are dissolved in 220 ml. water. Phosgene is passed into the solution and the precipitated crystals are filtered off with suction. After recrystallisation thereof from ethanol, with the addition of active charcoal, there are obtained 3.55 g. (54% of theory) 4-(2-hydroxy-3-tert.-butylaminopropoxy)-7-methyl-2-benzimidazolinone hydrochloride, the decomposition point of which is 312° C.

Provenance & Evidence