Diphenyl<i>N</i>-Sulfamoylcarbonimidate - A Versatile Building Block in Heterocyclic Synthesis

Abstract

The title compound 3 has been prepared from diphenyl carbonate, phosphorus pentachloride and sulfamide 2. It appears to be a useful synthetic building block for acyclic and heterocyclic compounds containing the N-SO2-N-moiety, for example, 3-sulfamoylisoureas, 4-sulfamoylisosemicarbazides, 2-sulfamoylguanidines, imid-, ox- and thiazolidines, 1,2,6-thiadiazine 1,1-dioxides, 1,2,4,6-thiatriazine 1,1-dioxides.