“Pd °(PPh3)2” generated by electroreduction of PdII(PPh3)2Cl2 in the presence of carbon monoxide exists mainly in the form of low-ligated zerovalent palladium complex Pd °(PPh3)2CO. On the basis of the experimental results, a mechanism is proposed for its formation. The oxidative addition of 4-iodoanisole to zerovalent palladium centre to afford a cyclic palladium(II) centre seems to be very efficient, but the 4-anisaldehyde formation undergoes severe competition with the two-electron reduction yielding anisole.

Electrochemical behaviour of PdII(PPh3)2Cl2 in the presence of carbon monoxide and its use in the palladium-catalyzed electrochemical formylation of iodoanisole

MARINELLI, Fabio;ARCADI, Antonio
1996

Abstract

“Pd °(PPh3)2” generated by electroreduction of PdII(PPh3)2Cl2 in the presence of carbon monoxide exists mainly in the form of low-ligated zerovalent palladium complex Pd °(PPh3)2CO. On the basis of the experimental results, a mechanism is proposed for its formation. The oxidative addition of 4-iodoanisole to zerovalent palladium centre to afford a cyclic palladium(II) centre seems to be very efficient, but the 4-anisaldehyde formation undergoes severe competition with the two-electron reduction yielding anisole.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11697/6224
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