Abstract
A series of some new 1,2,3,5-thiatriazolidin-4-one 1,1-dioxides derivatives were synthesized by reacting respectively beta-cyanohydrazines and phosphorylated hydrazine with chlorosulfonyl isocyanate in good yields. The structures of all the newly prepared compounds were confirmed by IR, H-1, C-13, P-31-NMR spectral data and elemental analysis.