| | 2 | Author
| Christian Klasen, Guido Effinger, Siegbert Schmida, Ingo-Peter Lorenz | Requires cookie* | | | Title
| Offene und geschlossene P-funktionalisierte Diferriophosphonium-Salze des Typs |{CpFe(CO)2}2P(Ph)Rl+ X " bzw. |{/i-CO (CpFeCO)2}P(Ph)R |+ X"  | | | | Abstract
| Open and Closed P-Functionalized Diferriophosphonium Salts of the Type [{CpFe(CO)2}2P (P h)R r X" and [{//-CO(CpFeCO)2}P(Ph)R]+ X" The reaction o f Ph(R)PSiM e3 with an excess o f C pFe(CO)2Cl results in the elimination o f M e3SiCl to give the open diferriophosphonium halides [{C pF e(C O),}2P(Ph)R]Cl (R = H, Ph, C H 2SiM e3, Me) (1 a-d). The deprotonation reaction o f 1 a with KOBu' at -7 8 °C results in the formation o f the unstable diferriophosphane {CpFe(CO)2} 2PPh (3), which reacts with alky lating reagents RX (R = Me, C H 2Ph, C H 2COOEt; X = Cl, I) to give the P-functionalized di ferriophosphonium halides [{CpFe(CO)2} 2P(Ph)R]X (ld '-f) The light-sensitive compounds l b -f are found to eliminate readily a CO ligand upon photolysis to give the corresponding closed P-functionalized diferriophosphonium salts [{//-CO (CpFeC O)2}P(Ph)R]X (2 b -f) with a bridging CO ligand and a F e -F e bond. The mass, IR and N M R spectra o f 1, 2 and the results o f a crystal structure determination o f [{//-CO (CpFeC O)2}PPh2]BPh4 (2b') are report ed and discussed. | | | |
Reference
| Z. Naturforsch. 48b, 705 (1993); eingegangen am 31. August 1992 | | | |
Published
| 1993 | | | |
Keywords
| Phosphido Bridges, Diferriophosphane Intermediate, Diferriophosphonium Salts, Elimination Reaction | | | |
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| default:Reihe_B/48/ZNB-1993-48b-0705.pdf | | | | Identifier
| ZNB-1993-48b-0705 | | | | Volume
| 48 | |
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