Nucleophilic Displacement of the Nitro Group in n6-Nitroarene-n5-cyclopentadienyliron Hexafluorophosphates

Abstract
The nitro group in n6-nitrobenzene or o-, m-, or p-nitrotoluene-n5 -cyclopentadienyliron hexaflurophosphate (I, II, III or IV, respectively) was shown to undergo readily nucleophilic displacement reactions when treated with an O, S or N containing nucleophile. The products obtained include the CpFe complexes of substituted arenes from reactions of I, II, III or IV with CH3OH, C2OH or p-CH3C6H4SH, all carried out in the presence of K2CO3, or with pyrrolidine.