1',4'-C5H4[(C5H5-5-exo-η4)Fe(CO)2(PPh3)]2

Base Information

• Chemical Name: 1',4'-C5H4[(C5H5-5-exo-η4)Fe(CO)2(PPh3)]2
• CAS No.: 333316-29-3
• Molecular Formula: C₅₅H₄₄Fe₂O₄P₂
• Molecular Weight: 942.593

Synonyms:

Chemical Property of 1',4'-C5H4[(C5H5-5-exo-η4)Fe(CO)2(PPh3)]2

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Technology Process of 1',4'-C5H4[(C5H5-5-exo-η4)Fe(CO)2(PPh3)]2

There total 3 articles about 1',4'-C5H4[(C5H5-5-exo-η4)Fe(CO)2(PPh3)]2 which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

πcyclopentadienyl dicarbonyl (triphenyl phosphine) iron iodide + [η4-5-exo-(2-C5H5)C5H5]Fe(CO)2(PPh3) (402856-38-6) + [η4-5-exo-(1'-C5H5)C5H5]Fe(CO)2(PPh3) (333316-28-2) → 1',4'-C5H4[(C5H5-5-exo-η4)Fe(CO)2(PPh3)]2 (333316-29-3) + 1',3'-C5H4[(C5H5-5-exo-η4)Fe(CO)2(PPh3)]2 (333316-30-6)

Guidance literature:

With n-butyllithium; In tetrahydrofuran; byproducts: LiI, P(C6H5)3; n-butyl lithium in hexane was added dropwise to the THF soln. of complexes at 0°C, stirred for 1 h, transferred into a suspn. of Fe-salt in THF at -78°C, warmed to room temp. over 2 h (N2); H2O was added, extd. with diethyl ether, the organic layer was dried over MgSO4, evapd. to dryness under vac., chromd. on silica gel column (CH2Cl2-hexane);

DOI:10.1016/S0022-328X(01)00957-3

Reference yield:

dicarbonylcyclopentadienyliodoiron(II) (12078-28-3,38979-86-1) + sodium cyclopentadienide + triphenylphosphine (603-35-0) → C5H5C5H5Fe(CO)2P(C6H5)3 (333316-27-1) + [η4-5-exo-(2-C5H5)C5H5]Fe(CO)2(PPh3) (402856-38-6) + [η4-5-exo-(1'-C5H5)C5H5]Fe(CO)2(PPh3) (333316-28-2) + 1',4'-C5H4[(C5H5-5-exo-η4)Fe(CO)2(PPh3)]2 (333316-29-3) + 1',3'-C5H4[(C5H5-5-exo-η4)Fe(CO)2(PPh3)]2 (333316-30-6)

Guidance literature:

In tetrahydrofuran; byproducts: NaI; (N2); addn. of CpNa to a mixt. of phosphine and iron iodide complex in THF at -78°C, warming to room temp.; addn. of water, extn. with Et2O, drying (MgSO4), evapn., column chromy (SiO2, ethyl acetate/hexane 1:7), evapn.;

DOI:10.1021/om0008528

Reference yield:

dicarbonylcyclopentadienyliodoiron(II) (12078-28-3,38979-86-1) + sodium cyclopentadienide + triphenylphosphine (603-35-0) → [η4-5-exo-(2-C5H5)C5H5]Fe(CO)2(PPh3) (402856-38-6) + [η4-5-exo-(1'-C5H5)C5H5]Fe(CO)2(PPh3) (333316-28-2) + 1',4'-C5H4[(C5H5-5-exo-η4)Fe(CO)2(PPh3)]2 (333316-29-3) + 1',3'-C5H4[(C5H5-5-exo-η4)Fe(CO)2(PPh3)]2 (333316-30-6)

Guidance literature:

In tetrahydrofuran; 3 equiv of NaC5H5 were added dropwise into a soln. of complex and PPh3 in THF at -78°C, warmed to room temp. (N2); H2O was added, extd. with diethyl ether, dried over MgSO4, evapd. to dryness (vac.), chromd. on silica gel column (ethyl acetate-hexane); mixt. of isomers were detected by NMR spectra;

DOI:10.1016/S0022-328X(01)00957-3

upstream raw materials:

dicarbonylcyclopentadienyliodoiron(II)

triphenylphosphine

[η4-5-exo-(2-C5H5)C5H5]Fe(CO)2(PPh3)

[η4-5-exo-(1'-C5H5)C5H5]Fe(CO)2(PPh3)

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