RECENTES AVAN?OS NA ADI??O ELETROF?LICA DE ORGANOCALCOG?NIOS A ALQUENOS

RECENT ADVANCES IN THE ELECTROPHILIC ADDITION OF CHALCOGEN ATOMS TO ALKENES. Organochalcogen compounds (containing S, Se and Te) are interesting from biological point of view, but also in their use as intermediates in obtaining complex molecules or even for exploring their properties. In this way, chalcogen electrophiles are very powerful reactants and can be added to alkenes to form a three-membered intermediate called chalcogeniranium ion. This specie reacts with different nucleophiles to undergo a series of molecules containing chalcogens with interesting properties. The addition of electrophiles from chalcogens to alkenes is one of the oldest reactions in the field of the chemistry of these compounds and because of this many modifications have already been explored. Among them, methodologies that make use of transition metals to the most recent ones exploring aspects of Green Chemistry. This review starts with an overview of the background involved in electrophilic addition reactions of organochalcogenic compounds in alkenes and then, describes the recent methodologies leading to the synthesis of useful molecules and hoping that it will be beneficial to provoke further research and reflection in this field.

Automated summary

Organochalcogen compounds (containing S, Se and Te) have interesting biological and chemical applications. Chalcogen electrophiles can react with alkenes to form chalcogeniranium ions, which can then react with different nucleophiles to form molecules with interesting properties. There have been many modifications and explorations in the field of electrophilic addition reactions of organochalcogenic compounds, including the use of transition metals and green chemistry methods. This review provides an overview of the background and recent methodologies in this field, hoping to inspire further research and reflection.