Hydroplatinum complexes reactions

XLVII) 16). The mechanism proposed involves the intermediacy of a hydroplatinum complex, which leads to the final product via the elimination of methane (Eq. 61). The reaction between dicyanoacetylene and PtHCl(PEtg)2 or PtHCl(PPh3)a has been studied and the product... 

A reaction that may involve an electrophilic attack is the exchange of hydroplatinum complexes with water. This reaction has been studied for the isotopic exchange reaction of PtHCl(PEt3)2 with DgO, which is very slow in the absence of added acid (149). 

The reaction is reversible. If a fluorinated olefin is used, it would be expected that the resulting fluoroalkyl compound would be readily obtained, since the greater strength of the metal-fluorocarbon bond as compared to the metal-hydrocarbon bond favors the insertion reaction 267). The reaction of hydroplatinum(II) complexes with fluoroolefins has been extensively studied. A surprising product from a number of these reactions is a fluorovinyl compound rather than the anticipated fluoroalkyl complex. In Fig. 4 are shown the reactions of PtHCl(PEt3)2 with a series of fluoroolefins to give PtCl(CF=CF2)(PEt3)2 (XXXIV)... 

The protonation of zero-valent platinum-acetylene complexes has been discussed by several workers, and a mechanism proposed involving insertion of the acetylene into a hydroplatinum bond 287). The reaction... 

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