169052-23-7Relevant academic research and scientific papers
The First Examples of an Aryl Ring Substituted by Both Phosphine and Phosphonate Moieties: Synthesis and Characterization of the New Highly Water-soluble Phosphine Ligand Na2*1.5H2O and Platinum(II) Complexes
Schull, Terence L.,Fettinger, James C.,Knight, D. Andrew
, p. 1487 - 1488 (1995)
The highly water-soluble phosphine Na2*1.5H2O (TPPMP = 'triphenylphosphine monophosphonate') represents the first example of a compound containing an aryl ring which is substituted by both phosphine and anionic phosphonate moieties; the preparation
X-ray crystal structures of novel platinum(II) and palladium(II) complexes of dialkyl phosphonated phosphines
Guerrero, Gilles,Mutin, P. Hubert,Dahan, Fran?oise,Vioux, André
, p. 113 - 120 (2007/10/03)
Two diethyl phosphonated phosphine ligands of formula Ph2P(CH2)3PO3Et2 (ligand L) and Ph2P(4-C6H4PO3Et2) (ligand L′) were used to prepare different complexes of platinum(II) (1, cis-PtCl2L2; 2, trans-PtCl2L2·H2O; 3A and 3B, cis- and trans-PtCl2L2′) and palladium(II) (4, [PdCl2L]2; 5, trans-PdCl2L2·H2O; 6, trans-PdCl2L2′·Ch2 Cl2). The single-crystal X-ray structure analyses of complexes 1, 2, 4-6 indicate that complexation involved only the phosphine end, whereas the strong polarization of the P=O bond was highlighted by the formation of hydrogen bonds with a water molecule in 2 and 5, and with a dichloromethane molecule in 6, with an exceptionally short C-H(triple dot sign)O hydrogen bond length (C(triple dot sign)O separation 3.094(3) A?).
Novel Syntheses of Mono- and Bisphosphonated Aromatic Phosphanes by Consecutive Pd-Catalyzed P-C Coupling Reactions and Nucleophilic Phosphanylation - X-ray Structure of Ph2P-C6H4-m-PO3Na2 · 5.5 H2O · iPrOH
Machnitzki, Peter,Nickel, Thomas,Stelzer, Othmar,Landgrafe, Claudia
, p. 1029 - 1034 (2007/10/03)
The triphenylphosphane derivatives 2a and 5, bearing one and two phosphonic ester groups, are accessible in high yields by consecutive Pd-catalyzed P-C coupling reactions of p-bromoiodobenzene with Ph2PH and PhPH2, respectively, and then with diethyl phosphite. Ester hydrolysis yields the highly water-soluble sodium salts of mono- and bisphosphonated triphenylphosphane, 3a and 6, respectively. On reaction of the p- and m-fluorophenylphosphonic diethyl esters 7a, 7b with Ph2PK and subsequent ester hydrolysis the isomeric disodium (diphenylphosphano)phenylphosphonates 3a, 3b were obtained. The X-ray structure of Ph2P(C6H4-m-PO3Na2) · 5.5 H2O · iPrOH (space group Cmc21) has been determined. In the solid state, it forms a layer structure with hydrophilic (PO32-, H2O, iPrOH) and hydrophobic (Ph2P) compartments, in which the PO32- anionic groups are not engaged in coordination of the sodium cations.
Palladium complexes supported on hybrid organic-inorganic zirconium phosphite: Selectivity in the Heck reaction
Villemin, Didier,Jaffres, Paul-Alain,Nechab, Belkacem,Courivaud, Frederic
, p. 6581 - 6584 (2007/10/03)
Supported palladium complex on zirconium phosphite-phosphonate was made from triphenylphosphine phosphonic acid. The supported catalyst showed significant selectivity in the competitive Heck reaction between iodobenzene and different iodobenzoates. The re
