A Review on the Role of Transition Metals in Selenylation Reactions

: Organoselenium chemistry has emerged as a distinctive area of research with tremen-dous utility in the synthesis of biologically and pharmaceutically active molecules. Significant syn-thetic approaches have been made for the construction of C-Se bonds, which are useful in other or-ganic transformations. This review focuses on the versatility of transition metal-mediated selenyla-tion reactions, providing insights into various synthetic pathways and mechanistic details. Fur-thermore, this review aims to offer a broad perspective for designing efficient and novel catalysts to incorporate organoselenium moiety into the inert C-H bonds.