13991-08-7, Name is 1,2-Bis(diphenylphosphino)benzene, molecular formula is C30H24P2, belongs to chiral-phosphine-ligands compound, is a common compound. In a patnet, once mentioned the new application about 13991-08-7, HPLC of Formula: C30H24P2
Reactions of the sigma,pi-furyl complex [Fe2(CO) 6(mu-Fu)(mu-PFu2)] (Fu = C4H3O) with phosphines: Carbonyl substitution, migratory carbonyl insertion and cyclometallation-induced furan elimination
The reactivity of the sigma,pi-furyl complex [Fe2(CO) 6(m-Fu)(mu-PFu2)] (1) towards PPh3 and a range of bidentate phosphines has been studied and a number of different reaction products have been identified. With PPh3, carbonyl substitution affords [Fe2(CO)5(PPh3)(mu-Fu) (m-PFu2)] (2) in which the new phosphine is coordinated to the iron center that is sigma-coordinated by the bridging furyl moiety. With small bite-angle diphosphines – bis(diphenylphosphino)methane (dppm) and 1,8-bis(diphenylphosphino)naphthalene (dppn) – carbonyl substitution and migratory carbonyl insertion result to give the furyleacyl complexes with bridging, [Fe2(CO)4(mu-dppm)(m-O=C-Fu)(mu-PFu 2)] (3), or chelating, [Fe2(CO)4(kappa 2-dppn)(mu=OCeFu)(mu-PFu2)] (4), diphosphines, respectively. With the more flexible diphosphines Ph2P(CH 2)nPPh2 (n = 2, dppe, n = 3, dppp), the cyclometallated products [Fe2(CO)5{mu, kappa2-C6H4PPh(CH2) nPPh2}(mu-PFu2)] (n = 2, 5; n = 3, 6) are isolated as a result of carbonyl substitution and furan elimination, and a similar complex [Fe2(CO)5{mu,kappa2-C 6H4PPh(C6H4)PPh2}(mu- PFu2)] (7) is generated from the more rigid diphosphine bis(diphenylphosphino) benzene (dppb). With bis(diphenylphosphino)-1,1- binaphthalene (1,1-BINAP) the novel tridentate phosphine complex [Fe 2(CO)5{mu,kappa3-C6H 4P(C20H12PPh2)C6H 4PFu}] (8) results from the putative coupling of cyclometallated diphosphine and difurylphosphido ligands, following elimination of two equivalents of furan. The crystal structures of 2, 3, 5 and 8 have been determined and allow a detailed insight into the overall reaction profile.
Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.HPLC of Formula: C30H24P2. In my other articles, you can also check out more blogs about 13991-08-7
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