1. Heterocycles of Hypervalent Sulfur and Selenium: New Syntheses and Structures
- Author
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Y. Ding, Long-Li Lai, T. H. Ngoi, B. J. Luh, and D. H. Reid
- Subjects
chemistry ,Hypervalent molecule ,chemistry.chemical_element ,Organic chemistry ,General Chemistry ,Ring (chemistry) ,Nitrogen ,Medicinal chemistry ,Sulfur ,Carbon ,Selenium - Abstract
This article describes synthetic and structural studies of heterocycles based on hypervalent sulfur and selenium, in particular 1,6,6aλ4-triheterapentalenes, their monocyclic precursors and related compounds. What may be termed classical 1,6,6aλ4-triheterapentalenes conform to structure (1), in which Y = S, Se or Te and X and Z are O, S, Se or NR [1]. Many aza analogues of (1) are known in which one or more ring carbon atoms at positions 2, 3, 4 and 5 are replaced by nitrogen atoms. In the majority of known 1,6,6aλ4-triheterapentalenes, Y = S. Relatively few analogues are known in which Y = Se, and still fewer are known in which Y = Te. Analogues in which X and/or Ze is Te or PR have not hitherto been prepared.
- Published
- 2010