Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Oxidation of substituted 2-thiouracils and pyrimidine-2-thione with ozone and 3,3-dimethyl-1,2 -dioxirane. ... Ozone and 3,3-dimethyl-1,2-dioxirane react with substituted 2-thiouracils and pyrimidine-2-thione to afford several interesting desulfurized products. The effect of the ...