Polyfluoroaromatic derivatives of metal carbonyls. Part V. Further reactions of the anion [(π-C5H5)Fe(CO)2]– with substituted polyfluoro-aromatic compounds

Abstract

Reactions of the anion [(π-C₅H₅)Fe(CO)₂]^– with C₆F₅X (X = Me, CH:CH₂, CH₂CH:CH₂, and OMe) have given the complexes p-XC₆F₄·Fe(CO)₂(π-C₅H₅). Isomers have been found in the products where X = CH₂CH:CH₂ and OMe, and their structures and possible mode of formation are discussed. The reactions of the ethers p-HC₆F₄·OR (R = Me, Et, CH₂CH:CH₂, and CH₂C⋮CH) with the same anion have given the complexes RFe(CO)₂(π-C₅H₅), and comparable products are formed in the reactions with p-(MeO)₂C₆F₄ and with (p-MeOC₆F₄)₂. The results are compared with other oxygen–alkyl fission reactions in the polyfluoro- and polychloro-aromatic series.