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English“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.
http://hdl.handle.net/11697/6224| Titolo: | Electrochemical behaviour of PdII(PPh3)2Cl2 in the presence of carbon monoxide and its use in the palladium-catalyzed electrochemical formylation of iodoanisole |
| Autori interni: | ARCADI, Antonio MARINELLI, Fabio |
| Data di pubblicazione: | 1996 |
| Rivista: | ELECTROCHIMICA ACTA |
| 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. |
| Handle: | http://hdl.handle.net/11697/6224 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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