55272-32-7Relevant articles and documents
Synthesis, characterization and electrochemistry of cyclopentadienyl phosphine nitrosyl cyanide complexes of ruthenium(II) and osmium(II). Preparation of the dicyano ruthenium(II) complex, 5-C5H5)Ru(PPh3)(CN)2>Na
Laidlaw, W. M.,Denning, R. G.
, p. 199 - 204 (1993)
A series of novel chiral metal centre complexes of the general form, PF6 with cp = η5-C5H5, M = Ru (1); cp = η5-C5H4-Me, M = Ru (2); cp = η5-C5Me5, M = Ru (3) and cp = η5-C5H5, M = Os (4), has been synthesized in 85percent yield from the corresponding bis-phosphine complexes, , and characterized by NMR (1H; 31P; 13C) and FTIR spectroscopies.Cyclic voltammetry of 1-4 indicates quasi-reversible MI/II redox couples at potentials (vs.KCl(aq) SCE) of E1/2 -0.125, -0.155, -0.30 and -0.315 V, respectively.Near quantitative syntheses of the precursor bis-phosphine cyanide complexes, from the bis-phosphine halides, have been achieved by using methanolic sodium cyanide.The complex 5-C5H5)Ru(PPh3)(CN)2>Na (6) has been synthesized by treating 1 with sodium azide in acetonitrile followed by methanolic sodium cyanide.
Preparation of ruthenium azirinyl complexes and reversed regiospecificity of the carbonyl insertion reaction
Lo, Yih-Hsing,Hsu, Sheng-Cheng,Huang, Shou-Ling,Lin, Ying-Chih,Liu, Yi-Hong,Yu, Wang
, p. 5924 - 5933 (2008/10/09)
Electrophilic addition of organic halides to [Ru]CN (1; [Ru] = Cp(PPh ]3)2Ru) gave the cationic isocyanide complexes {[Ru]CNCH2R}X (R = CN, 2a; R = CH=CH2, 2b; R = Ph, 2c), which reacted with base (n-Bu4NOH or n-Bu4NF) to give the three-membered-ring azirinyl complexes. For the azirinyl complex with a phenyl group 3c, three isomers, assigned as ruthenium 2H- and 1H-azirinyl complexes, are observed at -20°C. Reaction of the methyl isocyanoacetate complex {[Ru]C≡NCH2COOMe}X (2d) with n-Bu4NOH causes hydrolysis of the ester group to give the ruthenium oxazolone complex 4d. The insertion of the C=O group of acetone, aldehyde, ester, and amide into the C-C bond of the three-membered azirinyl ring of 3a-c yields a variety of five-membered oxazolinyl complexes 5-7. The regiospecificity of the insertion differs from that observed in the photochemically induced carbonyl insertion in the organic azirine system. The diastereoselectivity in the formation of 5-7 is controlled by steric effects. In the formation of the pentamethylcyclopentadienyl oxazolinyl ruthenium complex 7a*, the intermediate 8a* is isolated before cyclization. Molecular structures of 7a* and 8a* have been determined by single-crystal X-ray diffraction analysis. Treatment of 7 with hydride gave [Ru]CN and alcohol.
Reactions of ruthenium cyclopropenyl complexes with trimethylsilyl azide
Chang, Ku-Hsien,Lin, Ying-Chih
, p. 1441 - 1442 (2007/10/03)
Treatment of three cyclopropenyl complexes [Ru]-C=C(Ph)CHR ([Ru] = (η5-C5H5)(PPh3)2Ru; R = Ph la, CN 1b, CH=CH2 1c} with Me3SiN3 afforded the nitrile complex 3a, the zwitterionic tetrazolate complex 6, and 7, respectively; for 1c, the triazole 8 was also obtained. c yclin@mail.ch.ntu.edu.tw.
