The interaction of sulfonamides with 4,5-dihydroxyimidazolidin-2-ones
was studied for the first time. The earlier unknown sulfonyldiiminobis
(1,3-dialkylimidazolidin-2-ones) and 4(S)-aryl(alkyl)-sulfonyliminoimi
dazolidin-2-ones were synthesized. A probable pathway of the reaction
was proposed. 1,3-Diethyl-4,5-dihydroxyimidazolidin-2-one was isolated
and described.