107901-43-9

Upstream product

• 157072-60-1 (carbonyl)(chloro)(hydrido)tris(triphenylphosphine)ruthenium(II) 
• 110-86-1 pyridine 
• 107854-00-2 {ruthenium(II)H(CO)(C₅H₅N)2(PPh₃)2}ClO₄ 

Downstream Products

• 781638-04-8 ClRu(CO)(triphenylphosphine)(pyridine)(OC₆H₃(OCH₃)CHN(2-pyridyl)) 
• 148661-68-1 RuH(CO)(C₅H₅N)(P(C₆H₅)3)(C₅H₁₀NC(S)S) 
• 148661-67-0 RuH(CO)(C₅H₅N)(P(C₆H₅)3)(OC₄H₈NC(S)S) 
• 148661-69-2 RuH(CO)(C₅H₅N)(P(C₆H₅)3)(HNC₄H₈NC(S)S) 
• 193412-22-5 Ru(P(C₆H₅)3)2(CO)(Cl)(C₅H₅N)(C₂C₆H₄CH₃) 
• 500552-62-5 [RuCl(CO)(C₅H₅N)(P(C₆H₅)3)(C₆H₄(O)CHNCH₃)] 
• 500552-63-6 [RuCl(CO)(C₅H₅N)(P(C₆H₅)3)(C₆H₄(O)CHNC₆H₁₁)] 

Relevant academic research and scientific papers

Reactions of Ru(CO)ClH(C5H5N)(PPh3)2 with 1-alkynes

Ru(CO)ClH(C5H5N)(PPh3)2 reacts with an equivalent of a monosubstituted alkyne in dichloromethane to give alkenyl derivative Ru(CO)Cl((E)HC=CHR)-(C5H5N)(PPh3)2 (R = n-C3H7, n-C6H13, n-C8H17, CMe3, Ph, COOMe, COOEt), resulting from a cis-insertion of the alkyne into the Ru-H bond.The reaction of the ruthenium hydride with an excess of an activated alkyne HCCCOOR(R-Me, Et) in methanol under reflux yields the bis-insertion derivative (PPh3)2 (R = Me, Et).

Temperature-dependent elongation of the H–H bond in dihydrogen complexes of Ru(II) bearing an NHC ligand: Effect of the NHC and trans ligands

Ruthenium hydride complexes bearing an N-heterocyclic carbene ligand [RuHCl(CO)(IMes)(PPh3)(L/L′)] (L = py, 2; 4Mepy, 3; L′ = MeCN, 4; Me3CCN, 5) have been synthesized in high-yields via reaction of [RuHCl(CO)(IMes)(PPh3)] (1) with pyridyl ligands L (L = py and 4Mepy) or nitrile ligands L′ (L′ = MeCN and Me3CCN). The ligands L/L′ are labile in all the ruthenium hydride complexes; they can be easily replaced by Lewis bases. The X-ray structures of complexes 2 and 3 show intramolecular π-π interactions between the aromatic ring of PPh3, IMes, and pyridyl ligands. The protonation reaction of 2–5 gives the corresponding dihydrogen complexes of the type [RuCl(η2-H2)(CO)(IMes)(PPh3)(L/L′)][OTf] complexes (L = py, 6; 4Mepy, 7; L′ = MeCN, 8; Me3CCN, 9). In all the dihydrogen complexes, H–H bond distances of η2-H2 ligand is temperature-dependent: 0.98 ? to 0.93 ? in the temperature range of 183–233 K. Attempts to synthesize analogous ruthenium hydride complexes bearing phosphine ligands resulted in a mixture of cis and trans-[RuHCl(CO)(PPh3)2(L)] [L = py, 10/11 (transHCl/cisHCl); 4Mepy, 12/13 (transHCl/cisHCl)] complexes. A comparative study has been done to get an insight into the temperature-dependent H–H bond distances in complexes 6–8 by synthesizing analogous ruthenium dihydrogen complexes, [RuCl(η2-H2)(CO)(PPh3)2(L)](OTf) (L = py, 15; 4Mepy, 17). All the complexes have been characterized using NMR spectroscopy. The X-ray crystal structures of complexes 2, 3, and 12 have also been determined.

Synthesis, crystal, molecular and electronic structures of hydride carbonyl ruthenium(II) complexes with pyridine and its derivative ligands

[RuHCl(CO)(PPh3)2(py)], [RuHCl(CO)(PPh 3)2(pyIm)] and [RuCl(CO)(PPh3) 2(pyoh)]·2CH3OH complexes (where py = pyridine, pyIm = imidazo[1,2-α]pyridine, pyoh = 2-hydroxy-6-methylpyri

Synthesis of butenynylruthenium complexes from hydrido, alkenyl, or alkynyl complexes

The reaction of Ru(CO)ClH(PPh3)3 with 1-alkynes in 1,2-dichloroethane under reflux conditions provides the coordinatively unsaturated butenynyl complexes [Ru{C(C≡CR)=CHR}(CO)Cl(PPh3)2] in good yield. These and r

Reactions of cationic ruthenium hydrides with 1-alkynes: Formation of σ-alkynylruthenium complexes and reduction of 1-alkynes to 1-alkenes

The reaction of [Ru(CO)H(C5H5N)2(PPh3)2]A (A = PF6, ClO4, BF4) with 2 equiv of alkynes RC≡=CH (R = n-C6H13, n-C8H17, t-C4H9, c-C6H11, and C6H5) gives σ-alkynylruthenium complexes [Ru(CO)(C≡ CR)(C5H5N)2(PPh3)2]A and 1-alkenes in a 1:1 ratio. The alkynyl complexes were characterized by IR and NMR spectroscopy and by one X-ray structure. [Ru(CO)(C≡C-C6H13)(C5H5N) 2(PPh3)2]ClO4 crystallizes in the monoclinic space group P21/n, with a = 11.032 (2) A?, b = 16.734 (6) A?, c = 26.816 (12) A?, β = 96.59 (2)°, Z = 4, and V = 4918 (2) A?3. However, methyl propynoate affords the coordinatively unsaturated alkenyl complex [Ru{C(COOMe)=CH2)}(CO)(PPh3)2]A in low yield. The reaction of [Ru(CO)(CH= CHR)(C5H5N)(MeCN)(PPh3)2]PF 6 (R = t-Bu, C6H5) with 1-alkynes yields the corresponding σ-alkynyl-ruthenium complexes. Hydrogenation of the σ-alkynylruthenium complexes takes place readily under 1 atm of H2 at 23°C to regenerate the starting hydrides and 1 equiv of 1-alkene. Heating the ruthenium hydride perchlorate in methanol or ethanol results in reduction of the anion to chloride, yielding the hydride Ru(CO)H(Cl)(C5H5N)(PPh3)2 and, consequently, the reactions of [Ru(CO)H(C5H5N)2(PPh3) 2]ClO4 with alkynes in these solvents yield alkenyl complexes Ru(CO)Cl(CH=CHR)(C5H5N)(PPh3)2.

Phenylacetylene dimerization promoted by ruthenium(II) complexes

The complex Ru(CO)(CH=CHPh)Cl(C5H5N)(PPh3)2 and related alkenyl complexes react in methanol or ethanol to give (E,E)-1,4-diphenylbuta-1,3-diene and the ruthenium(II) hydride Ru(CO)H(Cl)(C5H5N)(PPh3)3.Futher reaction of this hydride with the butadiene results in 1,2-reduction to yield (E)-1,4-diphenyl-1-butene.However, the reaction of phenylacetylene with catalytic amounts of ruthenium hydrides gave the dimer (Z)-1,4-diphenylbuten-3-yne.On the other hand, the reaction of 1,2-diphenylethenylruthenium(II) derivatives in methanol or ethanol gave trans-stilbene rather than the butadiene.Several deuteration experiments were performed in order to elucidate the mechanism of formation of (E,E)-1,4-diphenylbuta-1,3-diene and ruthenium hydride from the corresponding alkenyl complexes.