- HYDRIDE REDUCTION OF THE CATION 5-C5H5)Fe(Ph2PCH2CH2PPh2)CO>PF6; FORMATION OF (η5-C5H5)FeH(CO)(Ph2PCH2CH2PPh2) AND ELIMINATION OF H2 FROM 5-C5H5)FeH(CO)>2(Ph2PCH2CH2PPh2)
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(η5C5H5)FeH(CO)(Ph2PCH2CH2PPh2), formed in the LiAlH4 reduction of the cation of 5-C5H5)Fe(Ph2PCH2CH2PPh2)CO>PF6, can be converted into 5-C5H5)FeH(CO)>2(Ph2PCH2CH2PPh2), which undergoes thermal and photochemical elim
- Davies, Stephen G.,Hibberd, John,Simpson, Stephen J.,Watts, Oliver
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- HYDRIDE REDUCTION OF THE CATION 5-C5H5)Fe(Ph2CH2CH2PPh2)CO>PF6; FORMATION OF (η5-C5H5)FeH(CO)(Ph2CH2CH2PPh2) AND ELIMINATION OF H2 FROM 5-C5H5)FeH(CO)>2(Ph2PCH2CH2PPh2)
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(η5-C5H5)FeH(CO)(Ph2PCH2CH2PPh2), formed in the LiAlH4 reduction of the cation of 5C5H5)Fe(Ph2PCH2CH2PPh2)CO>PF6, can be converted into 5-C5H5)FeH(CO)>2(Ph2PCH2CH2PPh2), which undergoes thermal and photochemical elim
- Davies, Stephen G.,Hibberd, John,Simpson, Stephen J.,Watts, Oliver
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- REACTIVITY MODES OF BRIDGED BIMETALLIC 5-C5H5)Fe(CO)>2-μ-dppe WITH ELECTROPHILES. PREPARATION AND REACTIONS OF BIMETALLIC HYDRIDE COMPLEXES
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The complex 5-C5H5)Fe(CO)>2-μ-dppe (dppe = ethane-1,2-bisdiphenylphosphide) (I) reacts with electrophiles through a μ-CO and forms Lewis acid O-adducts with alkylating reagents (giving cationic μ2-alkoxycarbyne compounds) or with alkylaluminum compounds.Treatment of I with acid affords a stable μ2-hydride salt (IV), 2(μ2-H)(μ2-dppe)+, which serves as an intermediate in the stepwise hydrogenation (reversibly) of I to a bridged bimetallic dihydride, 2-μ2-dppe.This dihydride serves as a hydride donor, regenerating IV, towards Ph3C+ o r CpFe(CO)2(η2-CH2=CH2)+ hydride acceptors.The necessity of the μ2-dppe as a mechanical linkage in facilitating some bimetallic reactions is also established.
- LaCroce, S. J.,Menard, K. P.,Cutler, A. R.
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p. C79 - C83
(2007/10/02)
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