Category: 1663-45-2

Quality Control of 1,2-Bis(diphenylphosphino)ethane. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 1,2-Bis(diphenylphosphino)ethane, is researched, Molecular C26H24P2, CAS is 1663-45-2, about Pd (II)- pyrrolidine dithiocarbamate complexes: Synthesis, spectroscopic studies and molecular structure of [Pd(PyDT)(ppy)]. Author is Al-Jibori, Subhi A.; Al-Janabi, Ahmed S. M.; Al-Sahan, Serwan W. M.; Wagner, Christoph.

Eight palladium(II) pyrrolidine dithiocarbamate complexes were prepared and fully characterized. Reactions of the dimeric cyclopalladated complexes, [Pd(ppy)(μ-Cl)]2 (ppyH= phenylpyridine) or [Pd(N-BAZ)(μ-Cl)]2 (N-BAZH = N,N-dimethylbenzylamine) with two moles equivalent of ammonium pyrrolidine dithiocarbamate NH4(PyDT) afford [Pd(PyDT)(ppy)] and [Pd(κ2-PyDT)(N-BAZ)] in good yield (91 and 71%, resp.). A crystal structure of [Pd(PyDT)(ppy)] reveals that the PyDT ligand is bonded as a bidentate chelate. Reaction of trans-[PdCl2(DMSO)2] with sodium benzisothiazolinate (NaBit), followed by NH4(PyDT) afford Na[Pd(PyDT)(N-Bit)2]. Diphosphine adducts [Pd(PyDT)2{Ph2P(CH2)nPPh2}] {n = 2-4 or (CH2)n = (C5H4)2Fe}, can be prepared in good yield upon addition of the diphosphine to [Pd(PyDT)2]. Reaction of trans-[PdCl2(PPh3)2] with sodium saccharinate (Nasac) followed by NH4(PyDT) afford trans-[Pd(PyDT)(N-sac)(PPh3)2]. The prepared complexes were characterized by elemental anal., IR, 1H, 31P NMR spectroscopic data and conductivity measurements.

There is still a lot of research devoted to this compound(SMILES：P(CCP(C1=CC=CC=C1)C2=CC=CC=C2)(C3=CC=CC=C3)C4=CC=CC=C4)Quality Control of 1,2-Bis(diphenylphosphino)ethane, and with the development of science, more effects of this compound(1663-45-2) can be discovered.

Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 1,2-Bis(diphenylphosphino)ethane, is researched, Molecular C26H24P2, CAS is 1663-45-2, about Revising the chemistry of κ2-dppe-closo-RuC2B9H11 fragment: Synthesis of novel diamagnetic complexes and its transformations, the main research direction is ruthenium carborane phosphine complex preparation haptotropic rearrangement; redox reaction potential ruthenium carborane phosphine complex; atom transfer radical polymerization catalyst ruthenium carborane phosphine complex; methyl methacrylate polymerization atom transfer radical catalyst ruthenium carborane.Recommanded Product: 1663-45-2.

A novel facile way of synthesis of closo-ruthenacarboranes with chelate 1,2-bis(diphenylphosphino)ethane (dppe) with high yields was proposed. It was found that the interaction of the three-bridged 5,6,10-{Cl(Ph3P)2Ru}-[5,6,10-(μ-H)3-10-H-exo-nido-7,8-C2B9H10] (1) with dppe in acetonitrile or CH2Cl2/acetonitrile mixture leads to the formation of novel diamagnetic ruthenacarborane cluster 3-CNMe-3,3-[κ2-dppe]-closo-3,1,2-RuC2B9H11 (2) along with some amount of ionic compound [trans-(CH3CN)RuCl(dppe)2]+[C2B9H12]- (3) which may be also converted to 2 increasing its total yield. The reaction of 2 bearing divalent ruthenium with carbon tetrachloride or HCl gives the known 17-electron paramagnetic complex 3-Cl-3,3-[κ2-dppe]-closo-3,1,2-RuC2B9H11 (4). The detailed investigation of the previously described method of synthesis of 4 from 3-H-3-Cl-3,3-(PPh3)2-closo-3,1,2-RuC2B9H11 (5) allowed us to characterize the forming byproducts as 3-PPh3-3,3,8-[Ph2P(CH2)2PPh-μ-(C6H4-o)-closo-3,1,2-RuC2B9]H10 (6) and 3-[κ1-dppe]-3,3-[κ2-dppe]-closo-3,1,2-RuC2B9H11 (7). The obtained ruthenacarborane clusters undergo reversible Ru(II)/Ru(III) transition. It was shown that the complexes 2, 4 and 6 show good activity as catalysts for Atom Transfer Radical Polymerization of Me methacrylate.

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Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis