69004-88-2

Upstream product

• 32035-20-4 1,2-bis(diphenylphosphino)ethane-bis-(trimethylstannyl)platinum(II) 
• 540-63-6 ethane-1,2-dithiol 
• 83095-83-4 [platinum(II)dichloride(1,2-bis(diphenylphosphino)ethane)] 

Relevant academic research and scientific papers

Synthesis, reactions, and 31P NMR analysis of (diphosphine)platinum dithiolates

The reaction between (diphosphine)PtCl2 (diphosphine = dppm, dppe, dppp, dppb, dcpe, depe) and bifunctional thiols (1,2-ethanedithiol, 1,3-propanedithiol, 1,2-benzenedithiol) in acetone or CH2Cla gives the corresponding dithiolate complexes (1-18) in the presence of a base. These thiolato complexes have been isolated as crystalline solids in 57-88% yields and were characterized by 1H, 13C, and 31P NMR spectroscopy. The 31P chemical shifts of these complexes are dependent on both the nature of the diphosphine and the chelating nature of the dithiolato ligand. Treatment of (depe)Pt(SC6H4-o-S) (15) and the analogous dcpe complex (18) with 1 equiv of MeI, allyl chloride, or Me3OBF4 gave the corresponding sulfur-monoalkylated product. Reaction of Cr(nbd)(CO)4 with (depe)PtSC6H4-o-S (15) gave (depe)Pt(SC6H4-o-S)(Cr(CO)4 (22) in 64% yield.