A new reaction of [Cp((CO)2Fe(PPh2H)]PF6 with NaBH4 to give Cp(CO)(H)Fe(PPh2H) via Cp(CO)2FeH and PPh2H |
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| Institution: | 1. Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan;2. Doctoral Degree Program in Marine Biotechnology, National Sun Yat-sen University, Kaohsiung, Taiwan;3. Department of Physics, Chemistry, and Biology, Linköping University, Sweden;4. Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung, Taiwan;5. Department of Microbiology, National Taiwan University College of Medicine, Taipei, Taiwan;6. Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan;7. Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan |
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| Abstract: | Cp((CO)2Fe(PPh2H)]PF6 reacts with NaBH4 to give the intermediates CpFe(CO)2H and PPh2H, which are then converted into Cp(CO)(H)Fe(PPh2H). Cp(CO)2FeL]PF6 (L = P(OMe)3, P(OEt)3 and P(OiPr)3) reacts with NaBH4 to give the product Cp(CO)(H)FeL directly without Cp(CO)2FeH and L even being formed transiently. The proposed reaction mechanism is that H? attacks th phosphorus atom to give a metallaphosphorane complex, followed by coupling between a Cp(CO)2Fe fragment and H on the hypervalent phosphorus. |
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