Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 14694-95-2, is researched, SMILESS is [Rh]Cl.P(C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=CC=C3.P(C4=CC=CC=C4)(C5=CC=CC=C5)C6=CC=CC=C6.P(C7=CC=CC=C7)(C8=CC=CC=C8)C9=CC=CC=C9, Molecular C54H45ClP3RhJournal, Industrial & Engineering Chemistry Research called Hydrogenation of Polybutadiene at High Pressure, Author is Menossi, Matias; Ciolino, Andres; Quinzani, Lidia M.; Zabaloy, Marcelo S.; Milanesio, Juan M., the main research direction is hydrogenation polybutadiene high pressure pressure.Application In Synthesis of Tris(triphenylphosphine)chlororhodium.
The problem of low reaction rate due to poor mass transfer in the two-fluid-phase conventional hydrogenation of unsaturated polymers can be overcome by using di-Me ether/n-pentane as a light solvent mixture as the medium to carry out the reaction. In this work, a series of polybutadiene (PB) batch hydrogenation reactions were performed at high-pressure using Wilkinson/triphenylphosphine as a homogeneous catalyst/cocatalyst. Hydrogenated PBs with 86%-100% of saturation degree were obtained by changing processing variables: overall d., temperature, stirring frequency, initial hydrogen (H2)/double bonds ratio, global concentration of catalyst/cocatalyst, and reaction time. The variables that most affect the process are temperature, H2 excess, stirring frequency, and reaction time. By increasing these variables, the larger the saturation degree will be. The use of Wilkinson’s catalyst gives place to totally hydrogenated PB four times faster than conventional hydrogenation based on homogeneous catalysis (e.g., RhCl(PPh3)3, RhCl(P(C6H4-m-SO3Na))3, RhCl(PPh2(C6H4-m-SO3Na))) but giving place to some scission and crosslinking reactions.
Although many compounds look similar to this compound(14694-95-2)Application In Synthesis of Tris(triphenylphosphine)chlororhodium, numerous studies have shown that this compound(SMILES:[Rh]Cl.P(C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=CC=C3.P(C4=CC=CC=C4)(C5=CC=CC=C5)C6=CC=CC=C6.P(C7=CC=CC=C7)(C8=CC=CC=C8)C9=CC=CC=C9), has unique advantages. If you want to know more about similar compounds, you can read my other articles.
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