55057-90-4Relevant academic research and scientific papers
Study of the interaction of platinum hydride complex + with carbon monoxide and ethylene in trifluoroacetic acid solutions
Chinakov, V. D.,Il'inich, G. N.,Zudin, V. N.,Likholobov, V. A.,Nekipelov, V. M.
, p. 421 - 425 (2007/10/02)
The most probable intermediate formed by interaction of CO and C2H4 with + (I), in the synthesis of diethylketone from C2H4, CO and H2 under action of the catalytic system (PPh3)2Pt(OAc)2/PPh3/CF3COOH has been studied by 1H, 13C, 31P NMR spectroscopy.Complex I readily reacts with CO in CF3COOH solutions to form a carbonyl hydride complex trans-+ (II).In contrast to I, II undergoes ethylene insertion at the Pt-H bond in the presence of a catalytic additive Sn(OAc)2.The carbonyl ethyl complex trans+ (III) formed quantitatively from this insertion is stable to isomerization to the corresponding complex indicating that the carbonylation of the Pt-ethyl bond is the rate-determining step of the diethyl ketone synthesis.
