A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 7650-91-1, Name is Benzyldiphenylphosphine, molecular formula is C19H17P. In a Article£¬once mentioned of 7650-91-1, Quality Control of: Benzyldiphenylphosphine
Comparison of the neutral benzyldiphenylphosphine complexes C6H6Cr(CO)2PPh2Bz and C5H5Mn(CO)2PPh2Bz with the isoelectronic manganiobenzyldiphenylphosphonium salts [C5R5Mn(CO) (NO)PPh2Bz]BF4
The photolytically or thermally induced substitution reactions of C6H6Cr(CO)3, C5H5Mn(CO)3 or [C5R5Mn(CO)2(NO)]BF4 (R = H, CH3) with PPh2Bz led to isoelectronic benzyldiphenylphosphine complexes of half sandwich type C6H6Cr(CO)2PPh2Bz (1), C5H5Mn(CO)2PPh2Bz (2), [C5H5Mn(CO)(NO)(PPh2Bz)]BF4 (3a) and [C5Me5Mn(CO)(NO)(PPh2Bz)] BF4 (3b). In contrast to the neutral compounds 1 and 2, the phosphonium salts 3a, 3b can be deprotonated at the alpha-methylene group by bases such as DBU and LDA to give the neutral manganiodiphenylalkylidenephosphoranes C5R5Mn(CO)(NO)(PPh2=CHPh) (4a, 4b). 1H-. 13C-, 31P{ 1H)-NMR, IR and mass spectra of 1-4 are given. Crystals of 1 are orthorhombic, space group Pbca, with a = 19.960(3), b = 16.599(3) and c = 14.573(3) A, Z = 8 and R = 0.0521 for 2433 observed reflections. Crystals of 2 and 3a are monoclinic, space group P21/c, with a = 9.730(3), b = 23.123(6) and c = 9.784(3) A, Z = 4 and R = 0.0430 for 2512 observed reflections for 2, and a = 12.457(3), b = 10.597(3) and c = 18.764(5) A, Z = 4 and R = 0.0477 for 2765 observed reflections for 3a.
Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Quality Control of: Benzyldiphenylphosphine. In my other articles, you can also check out more blogs about 7650-91-1
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