Dj. Jeon et al., SYNTHESIS AND CHARACTERIZATION OF FUSED MESOIONIC 1,3,4-OXADIAZOLIUM-2-THIOLATES FROM N-AMINO-N,N'-DIHYDRODIAZINEDIONES, Heterocycles, 45(11), 1997, pp. 2101-2104
The novel fused mesoionic 1,3,4-oxadiazolium-2-thiolates were synthesi
zed from N-amino-N,N'-dihydrodiazinediones by treatment with carbon di
sulfide in the presence of 1,3-dicyclohexylcarbodiimide.