The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.224311-51-7, Name is 2-(Di-tert-Butylphosphino)biphenyl, molecular formula is C20H27P. In a Article£¬once mentioned of 224311-51-7, Application In Synthesis of 2-(Di-tert-Butylphosphino)biphenyl
Snapshots of the oxidative-addition process of silanes to nickel(0)
Addition of hydridosilanes, Ar2SiHX, to the labile Ni(0) benzene complex [(dtbpe)Ni]2(C6H6) (1; dtbpe=1,2-bis(di-tert-butylphosphino)ethane) gives mononuclear Ni(II) hydride silyl complexes of the formulation (dtbpe)Ni(mu-H)SiAr2X (2, X=H, Ar=Mes; 3, X=H, Ar=Ph; 4, X=Me, Ar=Ph; 5, X=Cl, Ar=Ph). Although the crystal structures of two representatives of the series indicate square-planar coordination around nickel, in solution structures having apparent C2v symmetry are observed. We propose that this behavior is due to a fluxional process that involves eta2-SiH intermediates. Other data are also consistent with the facile reductive elimination of the silane to regenerate nickel(0) products. Oxidation of 2 and 3 with triphenylcarbenium tetrakis(pentafluorophenyl)borate results in silane elimination and formation of [(dtbpe)Ni(eta3-C6H5CPh2)+][B(C6F5)4-] (6), the structure of which shows the CPh3- ligand bound to a Ni(II) center through a phenyl ring in an eta3-allylic fashion.
Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions.Application In Synthesis of 2-(Di-tert-Butylphosphino)biphenyl, you can also check out more blogs about224311-51-7
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