1374633-35-8Relevant academic research and scientific papers
Synthesis, reactivities, and coordination chemistry of Tris(2-isopropoxyphenyl)phosphine
Takeda, Nobuhiro,Tagawa, Tomonori,Unno, Masafumi
, p. 628 - 635 (2014)
A phosphine bearing three 2-isopropoxyphenyl groups, P{C6H4[2-O(i-Pr)]}3 (1), was synthesized. Phosphine 1 readily reacted with CH2Cl2 and ClCH2CH2Cl at 25°C to give the corresponding phosphonium salts [RCH2P{C6H4[2-O(i-Pr)]}3]X (2: R=X=Cl, 3: R=CH2Cl, X=BF4). Platinum, palladium, and rhodium complexes with ligand 1, [PtCl2(1)2] (4), [PdCl2(1)2] (5), [{PdCl(1)}2(μ-Cl)2] (6), and [RhCl(cod)(1)] (7) were synthesized and their structures were determined by X-ray crystallography, which revealed that ligand 1 works as a monodentate ligand in these complexes.
Synthesis, structure, and ethylene polymerization behavior of nickel complexes based on benzoylmethylenetri(2-alkoxylphenyl)phosphorane
Wan, Da-Wei,Gao, Yan-Shan,Li, Jun-Fang,Shen, Qi,Sun, Xiu-Li,Tang, Yong
scheme or table, p. 4552 - 4557 (2012/07/02)
Several new nickel complexes are prepared by the treatment of the stabilized ylide benzoylmethylenetri(2-alkoxylphenyl)phosphorane with Ni(cod)2 in the presence of PPh3. X-Ray diffraction studies reveal that a distorted square planar geometry around Ni(ii) is adopted. Upon treatment with Ni(cod)2, the nickel complexes are sufficiently robust for ethylene polymerization. The existence of 2-alkoxyl-aryl substituents on phosphorus improves the catalytic activities. The highest activity (2.1 × 106 g mol-1 h-1) is achieved when tri(2-isopropoxy-phenyl)phosphorane is employed (5e), which is one order higher than the corresponding SHOP catalyst. NMR analysis shows that the polyethylene mainly contains terminal double bonds and is highly linear.
