Abstract

The development of practical approaches for the construction of carbon–sulfur bonds is of interest to scientists. In particular, carbon–sulfur bond formation by transition-metal-catalyzed allylations has been attracting great attention. Allylic sulfides are important substances owing to their broad applications in synthetic and pharmaceutical areas. The alkene and sulfur moieties in allylic sulfides can lead to numerous transformations. This review details the development of carbon–sulfur bond formation through palladium-catalyzed rearrangements, palladium-catalyzed allylations, ­iridium-catalyzed regio- and enantioselective allylations and miscellaneous metal-catalyzed allylic substitutions. Carbon–selenium bond formations via metal-catalyzed allylic substitutions are also reviewed. 1 Introduction 2 Carbon–Sulfur Bond Formation via Palladium-Catalyzed Reactions 2.1 Rearrangements of Allylic Substrates 2.2 Allylations 2.3 Asymmetric Allylations 3 Carbon–Sulfur Bond Formation via Iridium-Catalyzed Regio­- and Enantioselective Allylations 4 Carbon–Sulfur Bond Formation via Miscellaneous Metal-Catalyzed Reactions 4.1 Nickel 4.2 Ruthenium 4.3 Gallium 4.4 Iron 5 Carbon–Selenium Bond Formation via Metal-Catalyzed Allylic­ Substitutions 6 Conclusions

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