81495-75-2Relevant academic research and scientific papers
Complexes of elements of groups 9 and 10 with new chiral chelating bisphosphine monosulfide and monoselenide ligands
Faller, Jack W.,Lloret-Fillol, Julio,Parr, Jonathan
, p. 883 - 888 (2007/10/03)
The chiral bisphosphine prepared from the reaction of (S)-α-methylbenzyl amine with two equivalents of chlorodiphenylphosphine can be oxidised by direct reaction with one equivalent of either of the elemental chalcogens sulfur or selenium to prepare new chiral monoxidised bisphosphines. These chiral ligands can be used to prepare complexes with group nine [Rh(I), Ir(I)] and group ten [Pd(II) and Pt(II)] metals. These complexes were characterised by spectroscopic and, in four cases, crystallographic techniques.
Short-bite Chiral Diphosphazanes Derived From (S)-α-Methyl Benzyl Amine and Their Pd, Pt and Rh Metal Complexes
Babu, Ruppa P. Kamalesh,Krishnamurthy, Setharampattu S.,Nethaji, Munirathinam
, p. 427 - 438 (2007/10/02)
New chiral diphosphazane ligands of the type Ph2PN(S-*CHMePh)PYY' , N2C3HMe2-3,5 are synthesized starting from a chiral aminophosphine, Ph2PNH(S-*CHMePh) (1).
PREPARATION AND 31P NMR STUDIES OF PLATINUM COMPLEXES OF SOME CHIRAL, BIDENTATE PHOSPHINES
Payne, Nicholas C.,Stephan, Douglas W.
, p. 203 - 222 (2007/10/02)
Two chiral diphosphines of formula RN(P(C6H5)2)2, S-peap and S-alap, have been prepared from S-α-phenethylamine and the ethyl ester of S-alanine, respectively.Their syntheses, and the preparation of the achiral diphosphine beap, N,N'-bis(diphenylphosphino)-N,N'-dibenzylethylenediamine, are described.Platinum complexes of these bidentate ligands of formula Pt(chelate)CH3Cl and ClO4 (X=acetone; p-YC5H4N, when Y=CH3, C2H5, CHO, CO2CH3, H and N(CH3)2; and a series of monodentate, Group V donor ligands, P(C2H5)3, P(C3H7)3, P(C8H17)3, PCH3(C6H5)2, P(CH3)2C6H5, P(C6H5)3, P(C6H11)(C6H5)2, P(C6H11)2C6H5, P(C6H11)3, P(C6H5)2N(C2H5)2, As(C6H5)3 and Sb(C6H5)3) have been prepared and their 1H and 31P NMR parameters recorded.The cationic pyridine complexes show a correlation of the ρ values of the para substituent to some of the 31P chemical shifts and coupling constants.The steric and electronic properties of the diphosphine ligands have been investigated by comparing their 31P NMR parameters with those of analogous complexes containing (+)-diop and S,S-chiraphos.
