One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, such as the rate of change in the concentration of reactants or products with time. 1486-28-8, Name is Methyldiphenylphosphine, formurla is C13H13P. In a document, author is Dajnak, Aymeric, introducing its new discovery. Application In Synthesis of Methyldiphenylphosphine.
Synthesis of Norbornene-Based Phosphine-Stabilized Silylium Ions Behaving as Masked Frustrated Lewis Pairs
A novel architecture of phosphine-stabilized silylium ions is described. The peculiar moderate flexible framework allows an efficient donation of the phosphine group toward the electron-deficient silicon center, thus providing a very good stabilization of the corresponding silylium ions. The P-Si interaction was studied in solution and in the solid state by NMR spectroscopy and X-ray diffraction analysis, respectively. The reactivity of silylium ions is easily improved using less donating phosphine ligands. Of particular interest, thanks to the flexible ligand framework, the phosphine-stabilized silylium ion 5f behaves as a frustrated Lewis pair instead of a simple Lewis acid and exhibits an original ambiphilic reactivity with carbonyl derivatives that allows the synthesis of seven- to nine-membered-ring heterocycles.
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Reference:
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