166330-10-5, (Oxybis(2,1-phenylene))bis(diphenylphosphine) is a chiral-phosphine-ligands compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
General procedure: Synthesis of the phosphine oxidesThe phosphine oxides were synthesized by oxidation ofthe corresponding phosphines. Calculated amounts of H2O2(30percent) were added slowly to the vigorously stirred THF solutionof the respective phosphine. Stirring was maintainedat room temperature for 2 h. After evaporation of THF, theresidue was treated with acetone-ethyl acetate to obtain therespective phosphine oxide product as a precipitate. The precipitatesthus obtained were filtered off and dried in a vacuum.All melting points were above 360 C with decomposition. DPEPO: 1H NMR (250 MHz, CDCl3): d = 7:75 ? 7:64(m, 9H, Phen-H), 7.42 (m, 13H, Phen-H), 7.05 ? 7.04 (t, 2H,Phen-H), 7.07 (t, 2H, Phen-H), 7.08 (t, 2H, Phen-H). ? MS(EI): m=z = 570. Yield 84percent., 166330-10-5
The synthetic route of 166330-10-5 has been constantly updated, and we look forward to future research findings.
Reference£º
Article; Pietraszkiewicz, Marek; Mal, Suraj; Pietraszkiewicz, Oksana; Gorski, Krzysztof; Chelwani, Nitin; Zeitschrift fur Naturforschung, B: Chemical Sciences; vol. 69; 2; (2014); p. 239 – 247;,
Phosphine ligand
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate