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: A mixture of 0.14 g (0.44 mmol) of [Cu(MeCN)4]BF4 and 0.24 g (0.44 mmol) of DPEPhos in 10 mL of methylene chloride was stirred for 1 h at room temperature. A solution of 0.10 g (0.22 mmol) of 1,1?-(butane-1,4-diyl)bis[2-(pyridin-2-yl)-1H-benzimidazole] (L1) in 10 mL of methylene chloride was added, and the mixture was stirred for 2 h at room temperature. The solvent and volatile compounds were removed under reduced pressure, and the residue was washed with hexane and dried under reduced pressure. Yield 0.53 g (96percent), yellow finely crystalline solid, decomposition point 340?343 ¡ãC. IR spectrum, nu, cm?1: 3057 m (C?Harom); 2959 m, 2856 m (C?H); 1598 w, 1589 m, 1565 m, 1482 m, 1465 s, 1435 v.s, 1334 m,1302 m, 1261 m, 1216 m (C=Carom, C=N, C?C); 1183 m, 1163 m (C?N); 875 m, 802 v.s [delta (C?Harom)]. 1HNMR spectrum (CDCl3), deltaC, ppm: 8.29 br.s (7H), 7.67?7.63 m (3H), 7.24?7.14 m (34H), 7.02?6.91 m (28H), 4.66 br.s (4H, NCH2), 2.36 br.s (4H, CH2CH2). 13CNMR spectrum (CDCl3), deltaC, ppm: 158.57, 150.22,148.43, 144.36, 139.96, 139.33, 136.68, 134.15, 133.41, 132.42, 131.78, 130.54, 130.10, 128.59, 125.76, 125.45, 124.89, 124.55, 124.06, 120.25, 118.34, 111.61, 45.52, 27.08. 31P NMR spectrum (CDCl3): deltaP ?11.52 ppm. Found, percent: C 66.03; H 4.52. C100H80B2Cu2F8N6O2P4. Calculated, percent: C 65.91; H 4.42., 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; Ilicheva; Bochkarev; Ilichev; Russian Journal of General Chemistry; vol. 87; 5; (2017); p. 1015 – 1021; Zh. Obshch. Khim.; vol. 87; 5; (2017); p. 825 – 832,8;,
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