The first definitive example of oxidative addition of acyclic vinyl selenide to M(0) complex
The principle of C-S bond activation of acyclic vinlyl sulfide by platinum(0)-complex was applied to the C-Se bond fission of vinyl selenide. The substrate possessing Ph and ArSe (Ar = C6H4Cl-p) substituents at the β-carbon successfully reacted with Pt(0)-complex at 25 °C to produce the vinyl platinum in good yield and its structure was unambiguously determined by X-ray crystallographic analysis. When (Z)-(Me 3Si)(ArSe)C(H)(SeAr) was employed as a reaction substrate, following β-Se elimination took place to liberate Me3SiCCH with the production of [trans-Pt(SeAr)2(PPh3)2]. The oxidative addition of C-Se bond of (E)-(Ph)(H)CC(H)(SeAr) to Pt(0) was also confirmed at 25 °C, while no C-S bond-breaking occurred when the corresponding vinyl sulfide was exposed to the same reaction conditions, demonstrating that the cleavage of C-Se bond was more facile than that of C-S bond.
Photo-and-thiol-driven trans insertion of phenylacetylene into H - Pt bonds
The photo-and-thiol-driven trans insertion of phenylacetylene into H-Pt bonds of Pt(X)(H)(PPh3)2 (X = SAr, Cl, Br, and I) took place to afford Pt[(Z)-C(H)=CH(Ph)](X)(PPh3)2 in good yields. Copyright