CHAPTER 2.3: Chalcogenone CE Compounds (E=S, Se, Te)
Published:25 Jul 2013
G. Verani and A. Garau, in Handbook of Chalcogen Chemistry: New Perspectives in Sulfur, Selenium and Tellurium, Volume 1, ed. F. Devillanova, W. Du Mont, F. Devillanova, and W. Du Mont, The Royal Society of Chemistry, 2nd edn, 2013, vol. 1, pp. 118-159.
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Derivatives containing thione (CS), selone(CSe), and tellone (CTe) groups bonded to carbon atoms are reviewed for the period 2004–2011. Stability, tautomeric equilibrium, polymerization, and oligomerization reactions are comparatively reported. For each class of compounds, i.e. thione, selone, and tellone, the synthetic methods and reactivity are presented in specific paragraphs. Syntheses are collected according to the structural environment, i.e. alkyl, aryl, and mixed, α,β‐unsaturated, etc., around the chalcogen atom. Reactivity is organized pointing out the ability of the group to act as ambidentate to form ring compounds or as unidentate/bidentate to give nucleophilic or electrophilic reactions.