TY - JOUR A1 - Zagidullin, Almaz A. A1 - Akhmatkhanova, Farida F. A1 - Khrizanforov, Mikhail N. A1 - Fayzullin, Robert R. A1 - Gerasimova, Tatiana P. A1 - Bezkishko, Ilya A. A1 - Miluykov, Vasili A. T1 - Synthesis and electrochemical properties of 3,4,5-tris(chlorophenyl)-1,2-diphosphaferrocenes JF - Beilstein Journal of Organic Chemistry PY - 2022/// VL - 18 SP - 1338 EP - 1345 SN - 1860-5397 DO - 10.3762/bjoc.18.139 PB - Beilstein-Institut JA - Beilstein J. Org. Chem. UR - https://doi.org/10.3762/bjoc.18.139 KW - cyclopropenyl bromide KW - electrochemical properties KW - phosphacyclopentadienide anion KW - phosphaferrocene KW - phosphonium salt KW - phosphorus heterocycle N2 - A novel representative of sodium 3,4,5-triaryl-1,2-diphosphacyclopentadienide containing a chloro substituent in the meta-position of the aryl groups was obtained with a high yield based on the reaction of tributyl(1,2,3-triarylcyclopropenyl)phosphonium bromide and sodium polyphosphides. Further reaction of sodium 3,4,5-tris(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 to 3,4,5-tris(4-chlorophenyl)-1,2-diphosphaferrocene. It was found that the position of the chlorine atom on the aryl fragment has an influence on the reduction potential of 1,2-diphosphaferrocenes, while the oxidation potentials do not change. ER -