Platinum Group Metals Bonded Thiolato Sulfur Oxygenation: Photoactivity and Bioactivity

Abstract

Platinum group metals mediated thiolato compounds are highly susceptible for S-centered reactivity owing to high nucleophilicity and which is enormously significant in the point of its bioactivity and photoactivity. A series of oxygenation reactions of thiolate sulfur attached with platinum metals occurred with molecular O2 in varying conditions. A variety of sulfenates and sulfinates are produced depending on nature of starting substrate thiolato and the oxygenations are facile under harshly oxygen environment. There are numerous mechanistic paths for the oxygenation of platinum metals bonded thiolate S-center unlike the oxygenation reaction of organic sulphides. It is assumed that S-oxygenation occurs via the intramolecular and intermolecular dioxygen addition pathways. A number of mysterious photo-induced sulphur oxygenation and self-sensitization reactions of metal-thiolato to analogous oxygenate are also mentioned. These compounds show enzymatic catalytic activity and remarkable bioactivity also interaction with the biomolecules like DNA, which opens a new area for the researchers for designing novel heavier metals-sulfur-oxygenates compounds as metallodrugs.