The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.13885-09-1, Name is 2-(Diphenylphosphino)biphenyl, molecular formula is C24H19P. In a Article，once mentioned of 13885-09-1, Safety of 2-(Diphenylphosphino)biphenyl
We report studies delineating the speciation, kinetics, and deoxygenation catalysis of phosphine-modified mixtures of B(C6F5)3 (BCF) and R3SiH. Combinations of BCF, a tertiary silane, and PAr3 generate the [H-B(C6F5)3-][R3Si-PAr3+] ion pair with conversions that depend on the silane and the phosphine. Smaller silanes enhance the ionization of the Si-H, as judged by heteronuclear NMR spectroscopy. Kinetic studies indicate that from BCF·PPh2(p-tol), formation of the borohydride/silyl phosphonium ion pair is alpha [Et3SiH]1[PPh2(p-tol)]0. DFT calculations confirmed the intermediacy of the weakly coordinated BCF···H-SiEt3 adduct en route to the silyl phosphonium. For the catalytic deoxygenation of anisole with Et3SiH, phosphine additives slow the reaction relative to phosphine-free conditions. In situ monitoring confirmed the presence of [H-B(C6F5)3-][Et3Si-PAr3+] at early times, but this slowly converts to [H-B(C6F5)3-][H3C-PAr3+], which is catalytically inactive. These data are reconciled by invoking a competitive demethylation of a key PhOMe(SiEt3)+ oxonium ion intermediate by H-B(C6F5)3- (productive) or phosphine (nonproductive).
The reactant in an enzyme-catalyzed reaction is called a substrate. Enzyme inhibitors cause a decrease in the reaction rate of an enzyme-catalyzed reaction.I hope my blog about 13885-09-1 is helpful to your research., Safety of 2-(Diphenylphosphino)biphenyl
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