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 Synthesis and characterisation of a range of Fe, Co, Ru and Rh triphos complexes and investigations into the catalytic hydrogenation of levulinic acid, the main research direction is hydrogenation catalyst ruthenium rhodium triphos complex; crystal structure iron cobalt ruthenium rhodium triphos complex; mol structure iron cobalt ruthenium rhodium triphos complex; triphos ligand preparation reaction iron cobalt ruthenium rhodium halide.Product Details of 1663-45-2.
The coordination chem. of the N-triphos ligand (NPPh3, 1b) was studied with a range of Fe, Co and Rh precursors and found to form either tridentate or bidentate complexes. Reaction of NPPh3 with [Rh(COD)(MeCN)2]BF4 gave the tridentate complex [Rh(COD)(κ3-NPPh3)]BF4 (3) in the solid state, however, in solution a bidentate complex predominates in more polar solvents. Reaction of NPPh3 with Fe carbonyl precursors revealed the formation of the bidentate complexes [Fe(CO)3(κ1,κ2-NPPh3)Fe(CO)4] (4) and [Fe(CO)3(κ2-NPPh3)] (5), while reaction with FeBr2 resulted in the paramagnetic bidentate complex [Fe(Br)2(κ2-NPPh3)] (6). Reaction of NPPh3 with CoCl2 gave a dimeric Co species [(κ2-NPPh3)CoCl(κ1,κ2-NPPh3)CoCl3] (7), while Zn powder reduction of NPPh3 Co halides gave the tridentate complexes of the type: [Co(X)(κ3-NPPh3)]. The related triphos Ru complex, [Ru(CO3)(CO)(κ3-CPPh3)] (2), also was isolated and characterized. Preliminary catalytic hydrogenation of levulinic acid (LA) was conducted with 2 and 3. The Ru complex is catalytically active, giving high conversions of LA to form gamma-valerolactone (GVL) and 1,4-pentanediol (1,4-PDO), while 3 is catalytically inactive. In situ catalytic testing with 1b and Fe(BF4)2.6H2O resulted in low conversions of LA while a combination of 1b and Co(BF4)2.6H2O gave high conversions to GVL.
When you point to this article, it is believed that you are also very interested in this compound(1663-45-2)Product Details of 1663-45-2 and due to space limitations, I can only present the most important information.
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