RECENT ADVANCES IN THE SYNTHESIS OF FIVE- AND SIX-MEMBERED SELENA-HETEROCYCLES

Organoselenium compounds play an increasingly important role in chemistry and biochemistry. Amongst the wide variety of selenium-containing systems, selena-heterocycles are versatile derivatives with broad applications in organic synthesis, catalysis, medicinal chemistry, and biology. In this context, taking into account the poor stability of most selenylating reagents or intermediates, the development of simple, mild and versatile synthetic methodologies towards functionalised selena-heterocycles remains an attractive yet challenging topic. This chapter will be focusing on recent advances on the synthesis of different classes of selenium-containing five- and six-membered ring systems.