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Beilstein Arch. 2022, 202261. https://doi.org/10.3762/bxiv.2022.61.v1
Published 11 Jul 2022
A novel representative of sodium 3,4,5-triaryl-1,2-diphosphacyclopentadienide containing Cl-substituent in the meta- position of the aryl groups was obtained with a high yield based on the reaction of (1,2,3-triarylcyclopropenyl)tributylphosphonium bromide and sodium polyphosphides. Further reaction of sodium 3,4,5-tri(3-chlorophenyl)-1,2-diphosphacyclopentadienide with [FeCp(η6-C6H5CH3)][PF6] complex gives a new 3,4,5-tris(3-chlorophenyl)-1,2-diphosphaferrocene. The electrochemical properties of 3,4,5-tris(3-chlorophenyl)-1,2-diphosphaferrocene were studied and compared with 3,4,5-tris(4-chlorophenyl)-1,2-diphosphaferrocene. It was found that the position of the chlorine atom in the aryl fragment has a influence on the reduction potential of 1,2-diphosphaferrocenes, while the oxidation potentials do not change.
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Keywords: cyclopropenyl bromide, phosphonium salt, 1,2-diphosphacyclopentadienide anion, 1,2-diphosphaferrocene, phosphorus heterocycle, electrochemical properties
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Zagidullin, A. A.; Akhmatkhanova, F.; Khrizanforov, M.; Fayzullin, R.; Gerasimova, T.; Bezkishko, I. A.; Miluykov, V. Beilstein Arch. 2022, 202261. doi:10.3762/bxiv.2022.61.v1
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