Effect of Steric and Electronic Properties of Palladium Complexes with Bidentate Diphosphine Ligands on the Basis of Diphenyl Oxide on Arylation of Amines
作者:Yu. A. Veits、E. V. Mutsenek
DOI:10.1007/s11176-005-0199-9
日期:2005.2
New complexes of palladium chloride with bidentate diphosphine ligands on the basis of 2,2′-bis(diorganylphosphino)diphenyl oxides were prepared by three methods, and their catalytic activity in arylation of amines was studied.
作者:Yu. A. Veits、E. V. Mutsenek、E. G. Neganova、I. P. Beletskaya
DOI:10.1023/a:1013808220187
日期:——
A new procedure has been developed for the preparation of new bidentane diphosphine ligands, 2,2'-diphosphinodiphenyl ethers containing various substituents on the phosphorus, which differ in both electron-donor and steric parameters.
The coordination behaviour of large natural bite angle diphosphine ligands towards methyl and 4-cyanophenylpalladium(ii) complexes
作者:Martin A. Zuideveld、Bert H. G. Swennenhuis、Maarten D. K. Boele、Yannick Guari、Gino P. F. van Strijdonck、Joost N. H. Reek、Paul C. J. Kamer、Kees Goubitz、Jan Fraanje、Martin Lutz、Anthony L. Spek、Piet W. N. M. van Leeuwen
DOI:10.1039/b111596k
日期:——
The structures of neutral and ionic 4-cyanophenylpalladium(II) and methylpalladium(II) complexes containing bidentate phosphine ligands were investigated in solution and in the solid state. Diphosphine ligands with a xanthene and a ferrocene backbone were used. New bis(dialkylphosphino) substituted Xantphos ligands were synthesised. 1H NMR and 31P NMR spectroscopy, conductivity measurements, UV-Vis spectroscopy, and X-ray crystallography were used to elucidate the structures of the complexes. Subtle changes of the phosphine ligands govern the coordination mode of the ligand. A variety of bidentate cis-, and trans-coordination and terdentate P–O–P, P–S–P and P–Fe–P coordination modes of the ligands were observed.