SOME RECENT SYNTHETIC ROUTES TO THIOKETONES AND THIOALDEHYDES

Thiocarbonyl compounds are reactive intermediates used to introduce su lfur heteroatoms into organic syntheses. Such species can either be sy nthesized and then further modified, or generated and reacted in situ. The crucial synthetic step in such syntheses is the generation of the inherently unstable C-S pi-bond, thus creating a reactive 'handle'. T his review explores the plethora of methods for the generation of both transient and stable thioaldehydes and thioketones.