1608-26-0, N,N,N’,N’,N”,N”-Hexamethylphosphinetriamine is a chiral-phosphine-ligands compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
To a mixture of (S)-3,3′-Dibenzyl-5,5′,6,6′-tetramethyl-1,1′-biphenyl-2,2′-diol24 (0.42 g, 1.00 mmol) in toluene (5 mL) was added hexamethylphosphorous triamide (248 mg, 1.50 mmol) under nitrogen. The resulting mixture was stirred at 80 C for 17 h. The solvent was evaporated under reduced pressure to afford a gel-like product, which was further purified by column chromatography on silica gel (pretreated with 1% NEt3 in hexanes) using hexanes/EtOAc (19/1) as the eluent to give (R)-MPN-Lf (0.32 g, 65%) as a white solid: mp 110.0-112.0 C; [alpha]D22 -176.2 (c 0.5, CH2Cl2); 1H NMR (400 MHz, CDCl3) delta 1.94 (s, 3H), 2.01 (s, 3H), 2.22 (s, 3H), 2.23 (s, 3H), 2.52 (s, 3H), 2.55 (s, 3H), 3.70 (d, J=15.2 Hz, 1H), 4.17 (m, 1H), 6.86 (s, 1H), 6.91 (s, 1H), 7.28 (m, 10H); 31P NMR (121.5 MHz, CDCl3) delta 140.8; HRMS (EI) calcd for C24H26NO2P [M]+ 391.1701, found 391.1703 (Delta=+0.5 ppm)., 1608-26-0
As the paragraph descriping shows that 1608-26-0 is playing an increasingly important role.
Reference£º
Article; Chien, Chih-Wei; Shi, Ce; Lin, Chi-Feng; Ojima, Iwao; Tetrahedron; vol. 67; 35; (2011); p. 6513 – 6523;,
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