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Original Articles

Simple and practical one-step synthesis of new 1,3-dienic δ-sultones from terminal alkynes and some synthetic applications of these compounds

, , , , &
Pages 3-16 | Received 10 Sep 2010, Accepted 31 Oct 2010, Published online: 10 Dec 2010
 

Abstract

1,3-Dienic δ -sultones 4,6-diaryl-[1,2]oxathiine 2,2-dioxides were synthesized via a one-step reaction of arylalkynes with dioxane sulfotrioxide. The reactivity of various alkynes in this reaction was investigated. The resulting sultones were brominated with Br2 or N-bromosuccinimide regioselectively α to sulfur and subsequently coupled with phenylacetylene using Sonogashira conditions.

Acknowledgements

Financial support of this work by the DFG (ME 776/15-2) and the Rosa-Luxemburg-Foundation is gratefully acknowledged.

Notes

Crystallographic data (excluding structure factors) for the structures in this paper have been deposited with the Cambridge Crystallographic Data Centre as supplementary publication numbers CCDC 776086 (6b), CCDC 776085 (8a), CCDC 776084 (8c).

Additional information

Notes on contributors

Olga Kataeva

X-ray diffraction analysis.

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