107901-43-9Relevant articles and documents
Reactions of Ru(CO)ClH(C5H5N)(PPh3)2 with 1-alkynes
Romero, Antonio,Santos, Amelia,Lopez, Javier
, p. 219 - 223 (1990)
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).
Synthesis, crystal, molecular and electronic structures of hydride carbonyl ruthenium(II) complexes with pyridine and its derivative ligands
Ma?ecki
, p. 79 - 85 (2011/02/27)
[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
Reactions of cationic ruthenium hydrides with 1-alkynes: Formation of σ-alkynylruthenium complexes and reduction of 1-alkynes to 1-alkenes
Echavarren, Antonto M.,López, Javier,Santos, Amelia,Romero, Antonio,Hermoso, Juan A.,Vegas, Angel
, p. 2371 - 2376 (2008/10/08)
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.