35880-56-9

Upstream product

• 20332-49-4 tricarbonylbis(triphenylphosphine)ruthenium⁽⁰⁾ 
• 886-66-8 1,4-diphenyl-1,3-butadiyne 
• 80937-33-3 oxygen 
• 35880-54-7 {ruthenium⁽⁰⁾ dicarbonyltris(triphenylphosphine)} 
• 35795-47-2 ruthenium (ethylene)(carbonyl)2(triphenylphosphine)2 
• 25360-32-1 carbonyl bis(hydrido)tris(triphenylphosphine)ruthenium(II) 
• 871128-13-1 [RuH(C₂C₂H)(CO)2(triphenylphosphine)2] 

Relevant academic research and scientific papers

Reactions of [Ru(CO)2(PPh3)3] with alkynylphosphonium salts: A phosphinoallene complex

[Ru(CO)2(PPh3)3] reacts with either HC=CCH2Br or [HC=CCH2SMe2]Br to provide the σ-allenyl complex [Ru(CH=C=CH2)Br(CO)2(PPh 3)2]; however, with [HC=CCH2PPh3]Br, the salt [Ru(γ2-H2C=C=CHPPh3)(CO) 2(PPh3)2]Br is obtained, which may be described as a complex of a phosphonioallene on the basis of crystallographic data for [Ru(γ2-H2C=C=CHPPh3)(CO) 2(PPh3)2]2Br(PF6) and a comparison of spectroscopic data with those for the simple allene complex [Ru(γ2-H2C=C=CH2)(CO) 2(PPh3)2].

Bis(alkynyl), metallacyclopentadiene, and diphenylbutadiyne complexes of ruthenium

Heating diphenylbutadiyne with [Ru(CO)2(PPh3) 3] or [Ru(CO)3(PPh3)2] in toluene under reflux provides respectively the ruthenacyclopentadiene [Ru{κ2-CR=CPhCPh=CR}(CO)2(PPh3) 2] (R = C≡CPh) or the cyclopentadienone complex [Ru{η4-O=CC4Ph2R2}(CO) 2(PPh3)], the latter via [2 + 2 + 1] alkyne and CO cyclization. The bis(alkynyl) complex cis,cis,trans-[Ru(C≡CPh) 2(CO)2(PPh3)2] is not formed in either of these reactions but is the product of the reaction of [RuCl 2(CO)2(PPh3)2] with LiC≡CPh or of cis,-mer-[Ru(C≡CPh)2(CO)(PPh3)3] with CO. Although the bis(alkynyl) complex does not undergo reductive elimination to provide the diyne complex, thermolysis of cis,cis,trans-[Ru(C≡CPh) (HgC≡CPh)(CO)2-(PPh3)2] (obtained from [Ru(CO)2(PPh3)3] and [Hg(C≡CPh) 2]) provides a noninterconvertible 1:1 mixture of cis,cis,trans-[Ru(C≡CPh)2(CO)2(PPh3) 2] and [Ru(η-PhC≡CC≡CPh)(CO)2(PPh 3)2].

A bimetallic complex spanned by the CeH ligand: Synthesis of [Cl(CO) 2L2RuC=CCH=C=RuL2(η-C5H 5)]PF6 (L = PPh3)

The synthesis of the first example of a bime-tallic complex spanned by the C4H alkynylvinylidene ligand, [Cl(CO)2L 2RuC≡CCH=C-RuL2(η-C5H 5]PF6 (L = PPh3), is reported: the reaction of [Ru(CO)2L3] with butadiyne provides [RuH(C≡CC≡ CH)(CO)2L2], which is converted to the chloro derivative [RuCl(C≡CC≡CH)-(CO)2L2] by N-chlorosuccinimide. Subsequent treatment with [Ru(thf)L2(η- C5H5)]PF6 provides [Cl(CO)2L 2RuC≡ CCH=C=RuL2(η-C5H 5)]PF6, deprotonation of which affords [Cl(CO) 2L2RuC≡CC≡CRuL2(η-C 5H5)].

Formation of Di- And Tricarbonylruthenium(O) Species from [RuH2(CO)(PPh3)3] via Decarbonylation of Methyl Benzoates: X-Ray Crystal Structures of [Ru(CO)2(PPh3)3] and [Ru(O2)(CO)2(PPh3)2]

Dihydridoruthenium(II) complex [RuH2(CO)(PPh3)3] (1) reacts with methyl benzoate in the presence of an olefin at 110 °C to afford some dicarbonylruthenium(O) species [Ru(CO)2(PPh3)3] (2) and Ru(CO)2(PPh3)2L (L= the olefin or the ester). A tricarbonylruthenium(O) complex [Ru(CO)3(PPh3)2] (3) is formed at higher reaction temperature. The experiment using 13C-enriched methyl benzoate reveals that the second and the third carbonyl ligands are mainly derived by subtraction of the carbonyl group from the ester. When the reaction is carried out in the presence of triethoxyvinylsilane, a part of the second and the third carbonyl groups is derived from the ethoxy group of the silane, because 1 reacts with the silane at 110 °C in the absence of the ester to afford 2 and 3. The formation ratio of 2 and 3 is affected by the type of olefins used; selective formation of 2 and 3 is achieved when triethoxyvinylsilane is used, whereas allylbenzene or cyclooctene affords merely a mixture of the di- and tricarbonyl species. The reaction mixture containing 2 and Ru(CO)2(PPh3)2L is exposed to air to give a peroxo complex [Ru(η2-O2)(CO)2 (PPh3)2] (4) smoothly. The molecular structures of 2 and 4 are determined by the single crystal X-ray diffraction method. The complex 2 has a distorted trigonal bipyramidal coordination geometry with two equatorial CO ligands, whereas the complex 4 has a distorted octahedral structure.