N, N-Dialkyl-N′-Chlorosulfonyl Chloroformamidines in Heterocyclic Synthesis. V The Preparation of some Benzimidazo-Fused [1,2,4,6]Thiatriazine Dioxides
N, N-Dialkyl-N′-Chlorosulfonyl Chloroformamidines in Heterocyclic Synthesis. V The Preparation of some Benzimidazo-Fused [1,2,4,6]Thiatriazine Dioxides