307933-34-2

Upstream product

• 577969-99-4 (p-cymene)Ru(PPh₂CH₂CH₂C₆H₅)Cl₂ 
• 157312-80-6 [RuCl₂(C₆H₅COOC₂H₅)]2 
• 5952-49-8 (2-phenylethyl)diphenylphosphane 

Downstream Products

• 307933-42-2 (η1:η6.-(2-phenyl-1-diphenylphosphinoethane))ruthenium(II) diiodide 

Relevant academic research and scientific papers

Synthesis, characterization, and thermal stability of (η6:η1-C6H5CH2CH 2PR2)Ru(CH3)2 (R = Cy, Ph, Et)

Several new arene-phosphine ligands were synthesized and used to prepare the following series of tethered dialkylruthenium(II) complexes: (η6:η1-C6H5CH2CH 2PR2)Ru(CH3)

Dicationic ruthenium(II) complexes containing bridged η1:η6-phosphinoarene ligands for the ring-opening metathesis polymerization

Tertiary phosphines with pendant genes R2PR' (R = Cy, Ph; R' = CH2CH2Ph or CH2CHPh2) (1-4) were synthesized and converted to the corresponding chelating ruthenium(II) complexes [RuCl2(η1:η6-R2PR')] (1a-4a). Halide exchange yielded [RuI2(η1:η6-R2PR')] (1b,3b), which were structurally characterized by single crystal X-ray diffraction. The systems (1a,2a,4a) were activated for ROMP of norbomene by addition of a diazo compound (trimethylsilyldiazomethane) and AgBF4 (A), by a diazo compound alone (B) or by a combination of the sodium salt NaB(Ar(f))4(Ar(f) = 3,5-(CF3)2C6H3) and methanol (C). The influence of the thereby created differing number of accessible coordination sites on the polymerization activity and the polymer microstructure (cis/trans ratio) was investigated. The nucleophilicity of the counter ion was found to play a crucial role in terms of catalytic activity. (C) 2000 Elsevier Science B.V.