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 Qiu, Haile, introducing its new discovery. Product Details of 1486-28-8.
Access toP-chiralsec- andtert-phosphine oxides enabled by Le-Phos-catalyzed asymmetric kinetic resolution
The synthesis ofP-stereogenic building blocks is extremely difficult. Herein we report an efficient kinetic resolution of secondary phosphine oxidesviaa Le-Phos-catalyzed asymmetric allylation reaction with Morita-Baylis-Hillman carbonates. This method provides facile access to enantioenriched secondary and tertiaryP-chiral phosphine oxides with broad substrate scope, both of which could serve asP-stereogenic synthons, and can be rapidly incorporated into a given scaffold bearing aP-stereocenter. The highly desirable late stage modifications demonstrate the practicability of our method and can be a critical contribution to obtaining optimalP-chiral catalysts and ligands.
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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