Vinyl sulfides

Regioselective Addition of Dithiophosphinic Acids to Vinyl Sulfides and Selenides: An Efficient Route Toward Functional Dithiophosphinates

“…The reaction is strictly regioselective, because no by‐products have been found in reaction mixtures ( 1 H and 31 P NMR). This fact is explained by relatively high S–H acidity of the acids 2a–c (e.g., p K a of aqueous ethanolic solution of Et 2 PS 2 H is 2.8 ) and by the electron‐rich nature of the C=C bond within vinyl chalcogenides 3a–e that favors their easy hydrofunctionalization.…”

Metal‐Free I2‐Catalyzed Sulfenylation of Dihydropyrans: Synthesis of Vinyl Sulfides

“…Vinyl sulfides are useful synthetic intermediates in organic transformations. They are widely used in cross‐coupling reactions, cycloaddition and thio‐Claisen reactions, aldehyde and ketone formation, synthesis of polydentate ligands and highly crosslinked polymer, as ligands in organometallic reactions and as Michael acceptors and enolate anions equivalents . In addition, alkenyl sulfide fragments are present in many natural products with useful biological and pharmacological properties .…”

Chalcogenisation of unsaturated organohalogen compounds by elemental chalcogens and their metal derivatives

“…However, in recent decades, numerous data have been obtained on the biological role of selenium and tellurium organic derivatives [4][5][6]. A detailed study for the structure of organochalcogen compounds (OCC) served as an impetus for the development of many theoretical concepts in organic chemistry [7][8][9]. An important direction in the application of OCCs involves their use as precursors in contemporary organic synthesis [10][11][12].…”