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

Teresa Cablewski; Craig L. Francis; Andris J. Liepa

doi:10.1071/CH07336

RESEARCH ARTICLE

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

Teresa Cablewski ^A , Craig L. Francis ^A ^B and Andris J. Liepa ^A

+ Author Affiliations

- Author Affiliations

^A CSIRO Molecular and Health Technologies, Clayton VIC 3168, Australia.

^B Corresponding author. Email: craig.francis@csiro.au

Australian Journal of Chemistry 61(1) 59-65 https://doi.org/10.1071/CH07336
Submitted: 21 September 2007 Accepted: 15 November 2007 Published: 18 January 2008

Abstract

N,N-dialkyl-N′-chlorosulfonyl chloroformamidines 1 were treated with 2-aminobenzimidazoles 2 to give [1,2,4,6]thiatriazino[2,3-a]benzimidazole 1,1-dioxides 3 and [1,2,4,6]thiatriazino[4,3-a]benzimidazole 2,2-dioxides 4. Some N-alkyl-, N-acyl-, and N-sulfonyl-derivatives of 3 were prepared. These products are derivatives of rare heterocycles.

Acknowledgements

We thank Roger Mulder and Jo Cosgriff for assistance with NMR spectroscopy, Carl Braybrook for assistance with mass spectrometry, and Gary Fallon, Paul Jensen, and Craig Forsyth (Monash University) for X-ray crystallography.

References

^* Part IV, Aust. J. Chem. 2007, 60, 113.

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

Abstract

Acknowledgements

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