65988-98-9Relevant academic research and scientific papers
Co-ordination of Highly Substituted Alkenes to Transition-metal Complexes: Preparation and Crystal and Molecular Structures of the Complexes 2> and 2>
Cupertino, Domenico C.,Cole-Hamilton David J.
, p. 443 - 450 (2007/10/02)
Reaction of Ph2PCl with RR'C=CR"C(X)OH in the presence of triethylamine produces Ph2POC(X)CR"=CRR' (X = O; R = R' = Me, R" = H; R = R" = H, R' = Me; R = R" = H, R' = CH=CHMe; R = Ph, R' = H, R" = Me; X = H2, R = R' = Me, R" = H) in high yield.These ligands react with 2)2> (L = C2H4 or cyclo-octene) to give high yields of 2> in which the ligands are bound through phosphorus and the double bond.The new compounds have been fully characterised by spectroscopic means, as well as by the crystal structures of 2> and 2>.Crystal data: for 2>, monoclinic, a = 8.485(!), b = 28.070(3), c = 14.253(1) Angstroem, β = 93.96(1) deg, space group P21/n; for 2>, monoclinic, a = 17.372(2), b = 22.070(1), c = 9.986(2) Angstroem, β = 104.51(1) deg, space group P21/a.Both complexes contain dimeric structures with bridging chlorine atoms.Each rhodium atom is in an approximately square-planar configuration, and is bonded to two chlorine, one phosphorus atom, and one ?-bonded C=C double bond, the phosphorus and ? system being part of a chelate ring structure.In 2> the α,β unsaturated linkage is bonded to the rhodium only, the γ,δ double bond being free.
Preparative and Kinetic Investigations about the Isomerism between (Acyloxy)diorganylphosphanes and Acyldiorganylphosphane Oxides
Lindner, Ekkehard,Wuhrmann, Juan Carlos
, p. 2272 - 2286 (2007/10/02)
The (acyloxy)diorganylphosphanes RC(O)OPR'2 (2 a-d, 2 b') can be obtained either by reaction of XPR'2 (1) (X = Cl, R' = Ph) with CH3CO2Na or by the action of 1 (X = Cl, Br; R' = CH3, Ph) on the perfluorocarboxylic anhydrides 2 . 2b-d are t
