A general synthesis for the preparation of 3-oxo-and 3-imino-4-substituted-1, 2, 5- thiadiazolidine 1, l-dioxides has been developed beginning with an aldehyde, metal cyanide, and sulfamide. The selected chemistry and spectral properties of these compounds are detailed, as well as an X-ray crystallographic structure of a representative member of each class of heterocyclic compound. 3-Imino-4-phenyl-1, 2, 5-thiadiazolidine 1, l-dioxide ...
