Telluroxanes: Synthesis, structure and applications

This review discusses the syntheses, structures and applications of organotelluroxanes. These compounds have found applications in many areas such as catalysis, oxidation, hydrolysis etc. Weak intermolecular O⋯Te interactions are common features in this class of compounds and play an important role in the aggregation, reactivity and properties of such compounds. However, monomeric species could be isolated by employing bulky groups or intramolecular interactions in the system. The highly polar Te=O double bond in organotelluroxanes imparts very high Lewis acidic character on the tellurium atom and is responsible for their unusual reactivity as compared with organoselenium counterparts.