Syntheses of Selenothioic and Diselenoic Acid Esters

Abstract
This review covers synthetic methods of three types of selenium counterparts of dithioic acid esters, e.g. selenothioic acid Se-esters, selenothioic acid S-esters, and diselenoic acid esters. These generally utilize a combination of electrophilic thio- or seleno-acylating agents and nucleophilic organoselenium or -sulfur compounds. Observed trends in the stability of the esters are also discussed.