224311-51-7, Name is 2-(Di-tert-Butylphosphino)biphenyl, molecular formula is C20H27P, belongs to chiral-phosphine-ligands compound, is a common compound. In a patnet, once mentioned the new application about 224311-51-7, Application In Synthesis of 2-(Di-tert-Butylphosphino)biphenyl
In homogenous catalysis, the retention and reuse of the catalyst, which is extremely important for the feasibility of the process, is more complicated than in heterogeneous catalysis. Micellar enhanced ultrafiltration of Rh(cod)2CF3SO3, a rhodium catalyst precursor for homogeneous hydrogenation reactions, was carried out in a stirred ultrafiltration cell using micellar solutions of Marlophen NP9 without and with the addition of TPP, a phosphine ligand. For two different membranes with a molecular weight cut-off of 5kDa, made from regenerated cellulose (C) and polyethersulfone (PES), the rhodium retentions without TPP were below 30% while the micelle retentions were almost 100%. In the presence of TPP, the rhodium retentions significantly increased and values of 80% for the PES membrane and 90% for the C membrane were obtained, respectively. The enhanced rhodium retentions are driven by the high micelle-water partition coefficient of TPP that draws the newly formed Rh-P-complex into the micelles. The partition coefficient of TPP was calculated by the enhanced solubility method to be logKMW=5.4±0.1. The C membrane does not only show better rhodium retentions, but also a better performance regarding the flux. In comparison to pure water, the flux for the micellar solutions (cNP9=10g/L) decreases slightly to a value of 80% for the C-membrane and to a value of 8%-9% for the PES membrane, respectively.
Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Application In Synthesis of 2-(Di-tert-Butylphosphino)biphenyl. In my other articles, you can also check out more blogs about 224311-51-7
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