The current section presents an overview of the fundamental aspects of thiocarbonyl compounds, such as thioaldehydes and thioketones. Firstly, a theoretical approach and a physical-organic experimental approach disclose their properties. Secondly, their synthetic reactions are introduced. Finally, a focus is given to their synthetic applications, including nucleophilic and electrophilic reactions, as well as concerted reactions.
Keywords: Hetero-Diels–Alder reactions; Thioaldehydes; Thiocarbonyl compounds; Thioenols; Thioketones; Thionation.