Synthesis and reactivity of monothiooxamides and thiohydrazides of oxamic acids

The review surveys the studies carried out at the Laboratory of Heterocyclic Compounds of the N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, dealing with the chemistry of monothiooxamides and thiohydrazides of oxamic acids. Convenient methods for the synthesis of the title compounds are described and the possibility of converting them into diverse products, including N- and S-containing heterocycles, is demonstrated.