Disproportionation of 6,8-Dialkyl-3-thia-2,4,6,8-tetraazabicyclo[3,3,0]octan--7-one 3,3-Dioxides under Conditions of Acid Hydrolysis and Acetylation. -The title compound (I) is completely hydrolyzed when refluxed in 25% sulfuric acid. Under milder conditions, pH 1 and 60 ° C, (I) disproportionation to the bis(imidazole) derivatives (III) is observed. Treatment of (I) with AcCl also gives the disproportionation product (III) and a small amount of the sulfonylacetamide (V). The kinetics of the disproportionation is studied. -(GAZIEVA, G. A.; KRAVCHENKO, A. N.; STRELENKO, Y. A.; LEBEDEV, O. V.; GAZIEV, R. G.; ZHULIN, V. M.; Chem.