Ammonia → 2,2-Dimethyl-5-oxo-1-imidazolidineacetamide

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Reaction Steps

An ice-cold solution of ethyl 2,2-dimethyl-5-oxo-1-imidazolidineacetate (2 g) in methanol (150 ml) was saturated with gaseous ammonia). The solution was stirred at room temperature for 36 hours. After evaporation the residue was chromatographed on a silica gel column, eluting with dichloromethane/methanol 6:4. The selected fractions were collected, evaporated and the residue was crystallized from ethanol, to give 2,2-dimethyl-5-oxo-1-imidazolidineacetamide (1 g) as a white powder, m.p. 144°-146°.

Provenance & Evidence