1608-26-0, Name is Tris(dimethylamino)phosphine
, molecular formula is P[N(CH3)2]3, belongs to chiral-phosphine-ligands compound, is a common compound. In a patnet, once mentioned the new application about 1608-26-0, Recommanded Product: 1608-26-0
Synthesis and Conformational Analysis of Torsionally Constrained 1,3,2-Dioxaphosphepanes
A series of benzo-fused and norbornene-fused 1,3,2-dioxaphosphepanes have been synthesized and conformationally studied by proton and phosphorus-31 NMR, infrared spectroscopy, and X-ray crystallography.The NMR data are best interpreted in terms of chair-chair equilibria in which substituents on phosphorus (phenoxy, dimethylamino, and phenyl) show a remarkable preference for axial positions.Twist conformations cannot be completely ruled out, however.X-ray crystal structures have been determined for two of the norbornene-fused compounds,trans-5,6-(endo,endo-2′,3′-bicyclo<2.2.1>hept-5′-eno)-2-oxo-2-phenoxy-1,3,2-dioxaphosphepane (trans-2a) and trans-5,6-(endo,endo-2′,3′-bicyclo<2.2.1>hept-5′-eno)-2-oxo-2-phenyl-1,3,2-dioxaphosphepane (trans-2b), and one of the benzo-fused compounds, 5,6-benzo-2-oxo-2-phenyl-1,3,2-dioxaphosphepane (1b).The X-ray structures of the two norbornene-fused dioxaphosphepanes confirm the stereochemical assignments for these materials and show the seven-membered ring to adopt a chair conformation.A twist conformation is seen in the structure of the benzo-fused dioxaphosphepane, on the other hand.
Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Recommanded Product: 1608-26-0. In my other articles, you can also check out more blogs about 1608-26-0
Reference£º
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