Ga. Gazieva et al., Reaction of 1,3-diethyl-4,5-dihydroxyimidazolidin-2-one with 1,3-dimethylsulfamide at a high pressure, MENDELEEV C, (3), 2001, pp. 107-108
The title reaction under conditions of a solvent phase transition was found
to afford N-(1,3-diethyl-5-hydroxy-2-oxo-4-imidazoli-dinyl)-N,N'-dimethyls
ulfamide along with expected 2,4-dimethyl-6,8-diethyl-3-thia-2,4,6,8-tetraa
zabicyclo[3.3.0]octan-7-one 3,3-dioxide.