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Decomplexation of (η-Arene)(η-cyclopentadienyl)iron(II) Hexafluorophosphates: a Convenient One-pot Arylation Procedure

DOI: 10.1039/P19940000197

Source and publish data:

Journal of the Chemical Society. Perkin transactions I p. 197 - 202 (1994)

Update date:2022-08-02

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Authors:

Brown, Richard A.Brown, Richard A.

Fernando, Sharon I. S.Fernando, Sharon I. S.

Roberts, Roger M. G.Roberts, Roger M. G.

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Article abstract of DOI:10.1039/P19940000197

A study has been made of the relative merits of range of decomplexation reagents in the demetallation of <(η-arene)(η-cyclopentadienyl)Fe> salts. 1,8-Phenanthroline have good yields of the free ligand when simple arene complexes were used but did not demetallate more sterically hindered species.The reaction was found to be light sensitive.Bipyridine gave much lower yields.Potassium tert-butoxide in pyridine or DMSO was found to be an excellent demetallating agent even with sterically crowded complexes.A one-pot arylation procedure was developed and extended to include a number of important heterocyclic derivatives.The mechanism of these decomplexation reactions is briefly adressesd.

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