Abstract
Some derivatives of 1-carbamoylhydantoins undergo cleavage at the N1–C(O) bond on heating in solution. 1-Carbamoylhydantoins in aqueous and alcoholic ammonia rearrange via opening of the imidazole ring, followed by recyclization. Prolonged treatment of 1-carbamoylhydantoins with aqueous ammonia can lead to elimination of the C2=O carbonyl group.
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Kavina, M.A., Sizov, V.V. 1-Carbamoylhydantoins. New Aspects of Reactivity. Russ J Org Chem 56, 2119–2131 (2020). https://doi.org/10.1134/S107042802012012X
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DOI: https://doi.org/10.1134/S107042802012012X