Tributylphosphine sulfide

Triethylphosphine sulfide, (C2H5)3PS, is a crystalline solid (mp, 94°C). Not much is known about its toxicity, which is probably high. Tributylphosphine sulfide, (C4H9)3PS, is a skin irritant with a moderate toxicity hazard. When burned, both of these compounds give off dangerous fumes of phosphorus and sulfur oxides. 

Tributylphosphine sulfide has been used as a co-catalyst with dicobalt octacarbonyl for the Pawson-Khand reaction. Thermolysis of a mixture of cadmium chloride and trioctylphosphine sulfide at 250 °C has been used as a route to the formation of nanocrystalline cadmium sulfide." A complex of triphenylphosphine sulfide with a silver-tungsten-iodine acceptor has been characterised by X-ray studies. Ferrocenylphosphine chalcogenides have attracted considerable interest as ligands. Complexes of the monophosphino-phosphine sulfide (269) with rhodium have been characterised." The disulfide (270) forms complexes with both gold(i) and gold(iii) acceptors," and a silver(i) complex of the diselenide (271) has been prepared. ... 

Oxide see Tributylphosphine oxide, T-00213 Sulfide see Tributylphosphine sulfide, T-00214 Telluride [2935-46-8]. 

Tributyl phosphate, T-00211 >Tributylphosphine oxide, T-00213 >Tributylphosphine sulfide, T-00214... 

A recent adaptation of this type of approach involves the spontaneous intramolecular cyclization of imino ketones, formed by the reduction of nitro ketones through the action of tributylphosphine/diphenyl sulfide (Scheme 6.14). When the corresponding esters (R = OR) are used, pyrrolin-2-ones are formed (Scheme 6.15). 

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