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1.
The ability of transition metal catalysts to add or remove hydrogen from organic substrates by transfer hydrogenation is a valuable synthetic tool. Towards a series of novel metal complexes with a P―NH ligand, [Ph2PNHCH2―C4H3O] derived from furfurylamine were synthesized. Reaction of [Ph2PNHCH2―C4H3O] 1 with [Ru(η6‐p‐cymene)(μ‐Cl)Cl]2, [Ru(η6‐benzene)(μ‐Cl)Cl]2, [Rh(μ‐Cl)(cod)]2 and [Ir(η5‐C5Me5)(μ‐Cl)Cl]2 gave a range of new monodentate complexes [Ru(Ph2PNHCH2―C4H3O)(η6‐p‐cymene)Cl2] 2 , [Ru(Ph2PNHCH2―C4H3O)(η6‐benzene)Cl2] 3 , [Rh(Ph2PNHCH2‐C4H3O)(cod)Cl] 4 , and [Ir(Ph2PNHCH2‐C4H30)(η5‐C5Me5)Cl2] 5 , respectively. All new complexes were fully characterized by analytical and spectroscopic methods. 31P‐{1H} NMR, distortionless enhancement by polarization transfer (DEPT) or 1H‐13C heteronuclear correlation (HETCOR) experiments were used to confirm the spectral assignments. Following activation by KOH, compounds 1 , 2 , 3 , 4 catalyzed the transfer hydrogenation of acetophenone derivatives to 1‐phenylethanol derivatives in the presence of iso‐PrOH as the hydrogen source. Notably [Ru(Ph2PNHCH2‐C4H3O)(η6‐benzene)Cl2] 3 acts as an excellent catalyst, giving the corresponding alcohols in 98–99% yield in 20 min at 82°C (time of flight ≤ 297 h?1) for the transfer hydrogenation reaction in comparison to analogous rhodium or iridium complexes. Copyright © 2012 John Wiley & Sons, Ltd. 相似文献
2.
Murat Aydemir Nermin Meric Bahattin Gümgüm Ertan ?ahin 《Journal of organometallic chemistry》2011,696(13):2584-2588
Reaction of Ph2PNHCH2-C4H3S with [Ru(η6-p-cymene)(μ-Cl)Cl]2, [Ru(η6-benzene)(μ-Cl)Cl]2, [Rh(μ-Cl)(cod)]2 and [Ir(η5-C5Me5)(μ-Cl)Cl]2 yields complexes [Ru(Ph2PNHCH2-C4H3S)(η6-p-cymene)Cl2], 1, [Ru(Ph2PNHCH2-C4H3S)(η6-benzene)Cl2], 2, [Rh(Ph2PNHCH2-C4H3S)(cod)Cl], 3 and [Ir(Ph2PNHCH2-C4H3S)(η5-C5Me5)Cl2], 4, respectively. All complexes were isolated from the reaction solution and fully characterized by analytical and spectroscopic methods. The structure of [Ru(Ph2PNHCH2-C4H3S)(η6-benzene)Cl2], 2 was also determined by single crystal X-ray diffraction. 1-4 are suitable precursors forming highly active catalyst in the transfer hydrogenation of a variety of simple ketones. Notably, the catalysts obtained by using the ruthenium complexes [Ru(Ph2PNHCH2-C4H3S)(η6-p-cymene)Cl2], 1 and [Ru(Ph2PNHCH2-C4H3S)(η6-benzene)Cl2], 2 are much more active in the transfer hydrogenation converting the carbonyls to the corresponding alcohols in 98-99% yields (TOF ≤ 200 h−1) in comparison to analogous rhodium and iridium complexes. 相似文献
3.
The mononuclear η5-cyclopentadienyl complexes [(η5-C5H5)Ru(PPh3)2Cl], [(η5-C5H5)Os(PPh3)2Br] and pentamethylcyclopentadienyl complex [(η5-C5Me5)Ru(PPh3)2Cl] react in the presence of 1 eq. of the tetradentate N,N′-chelating ligand 3,5-bis(2-pyridyl)pyrazole (bpp-H) and 1 eq. of NH4PF6 in methanol to afford the mononuclear complexes [(η5-C5H5)Ru(PPh3)(bpp-H)]PF6 ([1]PF6), [(η5-C5H5)Os(PPh3)(bpp-H)]PF6 ([2]PF6) and [(η5-C5Me5)Ru(PPh3)(bpp-H)]PF6 ([3]PF6), respectively. The dinuclear η5-pentamethylcyclopentadienyl complexes [(η5-C5Me5)Rh(μ-Cl)Cl]2 and [(η5-C5Me5)Ir(μ-Cl)Cl]2 as well as the dinuclear η6-arene ruthenium complexes [(η6-C6H6)Ru(μ-Cl)Cl]2 and [(η6-p-iPrC6H4Me)Ru(μ-Cl)Cl]2 react with 2 eq. of bpp-H in the presence of NH4PF6 or NH4BF4 to afford the corresponding mononuclear complexes [(η5-C5Me5)Rh(bpp-H)Cl]PF6 ([4]PF6), [(η5-C5Me5)Ir(bpp-H)Cl]PF6 ([5]PF6), [(η6-C6H6)Ru(bpp-H)Cl]BF4 ([6]BF4) and [(η6-p-iPrC6H4Me)Ru(bpp-H)Cl]BF4 ([7]BF4). However, in the presence of 1 eq. of bpp-H and NH4BF4 the reaction with the same η6-arene ruthenium complexes affords the dinuclear salts [(η6-C6H6)2Ru2(bpp)Cl2]BF4 ([8]BF4) and [(η6-p-iPrC6H4Me)2Ru2(bpp)Cl2]BF4 ([9]BF4), respectively. These compounds have been characterized by IR, NMR and mass spectrometry, as well as by elemental analysis. The molecular structures of [1]PF6, [5]PF6 and [8]BF4 have been established by single crystal X-ray diffraction studies and some representative complexes have been studied by UV–vis spectroscopy. 相似文献
4.
J.R. Dilworth H.J. de Liefde Meijer J.H. Teuben 《Journal of organometallic chemistry》1978,159(1):47-52
[Ti(η5-C5H5)Cl3] reacts with Me3SiNNPh to give [Ti(η5-C5H5)Cl2(N2Ph)], and this gives [Ti(η5-C5H5)2Cl(N2Ph)] on treatment with sodium cyclopentadienide in THF at ?80°C. [Ti(η5-C5H4R)Cl3] (R H, Me) reacts analogously with Me3SiNPR3 (PR3 PPh3, PPh2Me) to give [Ti(η5-C5H4R)Cl2(NPR3)]. Under similar conditions TiCl4 gives [TiCl4(Me3SiNPR3)]. 相似文献
5.
Felice Faraone Vittorio Marsala Giuseppe Tresoldi 《Journal of organometallic chemistry》1978,152(3):337-345
The complexes [(η5-C5H5)RhCl2]2 and [(η5-C5Me5)RhCl2]2 react with stoichiometric amounts of isocyanide ligands L to give (η5-C5H5)RhLCl2 and (η5-C5Me5)RhLCl2 (L = CNC6H11, CNC6H4CH3-p); an excess of ligand L reacts further with (η5-C5Me5)RhLCl2 to give the cationic complex [(η5-C5Me5)RhL2Cl]+ which was isolated as tetraphenylborate salt. The cationic complexes [(η5-C5Me5)RhL(PPh3)Cl]+ and [(η5-C5Me5)Rh(Ph2PC2H4PPh2)Cl]+ were obtained in the reaction of (η5-C5Me5)RhLCl2 with PPh3 and Ph2PC2H4PPh2 respectively. Unidentified solids which do not contain the cyclopentadienyl moiety were obtained in the analogous reactions of (η5-C5H5)RhLCl2 with an excess of isocyanide or of tertiary phosphine.The complexes (η5-C5H5)Rh(CNC6H11)Cl2 and (η5-C5Me5)Rh(CNC6H11)Cl2 react with SCN? or SeCN? giving the corresponding dithiocyanate or diselenocyanate derivatives in which the pseudohalogen groups are S- or Se-bonded to the metal atom. The analogous reactions with C6Cl5MgCl gave the chiral complexes (η5-C5H5)Rh(CNC6H11)(C6Cl5)Cl and (η5-C5Me5)Rh(CNC6H11)(C6Cl5)Cl.The potentially chelating anion Ph2PSS? reacts with (η5-C5H5)Rh(CNC6Hn11)Cl2 and (η5-C5Me5)Rh(CNC6H11)Cl2 to give (η5-C5H5)Rh(CNC6H11)(SSPPh3)Cl and (η5-C5Me5)Rh(CNC6H11)(SSPPh2)Cl in which the dithio ligand acts as monodentate; these compounds react with MeI or EtI to give the dihalide derivatives and the esters Ph2PSSMe and PSSEt. The complex [(η5-C5Me5)Rh(CNC6H11)(SSPPh2)]Cl was obtained by refluxing a benzene solution of the corresponding neutral complex; the cyclopentadienyl derivative failed to give the analogous chelate complex.The complexes (η5-C5H5)RhLCl2, (η5-C5Me5)RhLCl2 and [(η5-C5Me5)RhL2Cl]+ (L = CNC6H11) were found to be unreactive towards amines. 相似文献
6.
Winfried Hoffmüller Kurt Polborn Jrg Knizek Heinrich Nth Wolfgang Beck 《无机化学与普通化学杂志》1997,623(12):1903-1911
Metal Complexes of Biologically Important Ligands. XCV. η5-Pentamethylcyclopentadienyl Rhodium, Iridium, η6- Benzene Ruthenium, and Phosphine Palladium Complexes of Proline Methylester and Proline Amide Proline methylester (L1) and proline amide (L2) give with the chloro bridged complexes [(η5 -C5Me5)MCl2]2 (M ? Rh, Ir), [(η6 -benzene)RuCl2]2 and [Et3PPdCl2]2 N and N,O coordinated compounds: (η5 -C5Me5)M(Cl2)L1 ( 1, 2 M ? Rh, Ir), [(η5-C5Me5) Rh(Cl)(L2)]+Cl? ( 5 ), [(η6- C6Me6) Ru(Cl)(L2)]+Cl? ( 6 ), [(η6-p-cymene)Ru(Cl)(L2)]+Cl? ( 7 ), [(eta;5-C5Me5)M(Cl)(L2-H+)] ( 9, 10 M ? Rh, Ir), (Et3P)Pd(Cl)2L1 ( 3 ), and [(Et3P)Pd(Cl)(L2)]+Cl? ( 8 ). The NMR spectra indicate that for 5 and 6 only one diastereoisomer is formed. The complexes 1, 2, 3 and 5 were characterized by X-ray diffraction. 相似文献
7.
Metal Complexes of Biologically Important Ligands. CIII. [1] Palladium(II), Platinum(II), Ruthenium(II), Rhodium(III), and Iridium(III) Complexes of Desoxyfructosazine The reactions of the pyrazine derivative desoxyfructosazin(pz) with K2PtCl4 and with the chlorobridged [M(PR3)Cl2]2 (M = Pd, Pt), [(η5-C5Me5)MCl2]2 and [(η6-p-Cymol)RuCl2]2 give the watersoluble complexes cis-Cl2Pt(pz)2, (R3P)(Cl)M(pz)M(Cl)(PR3) (M = Pd, Pt), (η5-C5Me5)(Cl)2M(pz)M(Cl)2(η5-C5Me5) (M = Rh, Ir), (η6-p-Cymol)(Cl2)Ru(pz)Ru(Cl)2(η6-p-Cymol). 相似文献
8.
《Journal of Coordination Chemistry》2012,65(3-4):379-388
Abstract The UV irradiation of (η5-C5Me5)Re(CO)3 in the presence of 1,2,4,5-C6Cl4H2 and 1,3,5-C6Cl3H3 (λ = 350 nm, hexane solution) effected intramolecular C—Cl activation, generating the complexes trans-(η5-C5Me5)Re(CO)2(2,4,5-C6Cl5-nHn)Cl, ((1), n = 2; (2), n = 3), respectively. Complex (1) dissolved in polar organic solvents produces, an equilibrium mixture with its cis isomer. The reaction of (1) with AgBF4, in acetonitrile, led to formation of the cationic complex [cis-(η5-C5Me5)Re(CO)2(2,4,5-C6Cl3H2)(MeCN)]+. The tetramethylfulvene complex (η6-C5Me4CH2)Re(CO)2(2,4,5-C6Cl3H2) (3) was obtained by reacting the cationic complex with the fluorinating agent Et3N′3HF. 相似文献
9.
The mononuclear cationic complexes [(η6-C6H6)RuCl(L)]+ (1), [(η6-p-iPrC6H4Me)RuCl(L)]+ (2), [(η5-C5H5)Ru(PPh3)(L)]+ (3), [(η5-C5Me5)Ru(PPh3)(L)]+ (4), [(η5-C5Me5)RhCl(L)]+ (5), [(η5-C5Me5)IrCl(L)]+ (6) as well as the dinuclear dicationic complexes [{(η6-C6H6)RuCl}2(L)]2+ (7), [{(η6-p-iPrC6H4Me)RuCl}2(L)]2+ (8), [{(η5-C5H5)Ru(PPh3)}2(L)]2+ (9), [{(η5-C5Me5)Ru(PPh3)}2(L)]2+ (10), [{(η5-C5Me5)RhCl}2(L)]2+ (11) and [{(η5-C5Me5)IrCl}2(L)]2+ (12) have been synthesized from 4,4′-bis(2-pyridyl-4-thiazole) (L) and the corresponding complexes [(η6-C6H6)Ru(μ-Cl)Cl]2, [(η6-p-iPrC6H4Me)Ru(μ-Cl)Cl]2, [(η5-C5H5)Ru(PPh3)2Cl)], [(η5-C5Me5)Ru(PPh3)2Cl], [(η5-C5Me5)Rh(μ-Cl)Cl]2 and [(η5-C5Me5)Ir(μ-Cl)Cl]2, respectively. All complexes were isolated as hexafluorophosphate salts and characterized by IR, NMR, mass spectrometry and UV-vis spectroscopy. The X-ray crystal structure analyses of [3]PF6, [5]PF6, [8](PF6)2 and [12](PF6)2 reveal a typical piano-stool geometry around the metal centers with a five-membered metallo-cycle in which 4,4′-bis(2-pyridyl-4-thiazole) acts as a N,N′-chelating ligand. 相似文献
10.
Hydrogen transfer reduction processes are attracting increasing interest from synthetic chemists in view of their operational simplicity. Reaction of [Ph2PNHCH2‐C4H3S] with [Ru(η6‐benzene)(µ‐Cl)Cl]2, [Rh(µ‐Cl)(cod)]2 and [Ir(η5‐C5Me5)(µ‐Cl)Cl]2 gave a range of new monodendate complexes [Ru(Ph2PNHCH2‐C4H3S)(η6‐benzene)Cl2], 1, [Rh(Ph2PNHCH2‐C4H3S)(cod)Cl], 2, and [Ir(Ph2PNHCH2‐C4H3S)(η5‐C5Me5)Cl2], 3, respectively. All new complexes were fully characterized by analytical and spectroscopic methods. 1H? 31P NMR, 1H? 13C HETCOR or 1H? 1H COSY correlation experiments were used to confirm the spectral assignments. 1–3 are suitable catalyst precursors for the transfer hydrogenation of acetophenone derivatives. Notably [Ru(Ph2PNHCH2‐C4H3S)(η6‐benzene)Cl2], 1, acts as an excellent catalyst, giving the corresponding alcohols in 98–99% yields in 30 min at 82 °C (TOF ≤200 h?1) for the transfer hydrogenation reaction in comparison to analogous rhodium or iridium complexes. This transfer hydrogenation is characterized by low reversibility under these conditions. Copyright © 2011 John Wiley & Sons, Ltd. 相似文献
11.
A heteronuclear compound of ruthenium and silver containing bridging tris(pyridyl)methanoate ligands
《Polyhedron》1999,18(23):2981-2985
The reaction of [{Ru(η6-C6H6)Cl(μ-Cl)}2] with Py3COH in ethanol results in the formation of the cation [Ru(η6-C6H6)(N,N′,O,-(C5H4N)3CO)]+ which is isolated as its hexafluorphosphate salt 1. The cation acts as a ligand towards other transition metal ions. With Ag+ the hetero-trinuclear complex [{Ru(η6-C6H6)((C5H4N)3CO)}2Ag][PF6]3 2 is formed, while reaction with [Pd(PhCN)2Cl2] gives the bimetallic [Ru(η6-C6H6)((C5H4N)3CO)PdCl2][PF6] 3. Both compounds were fully characterised by spectroscopic methods and the trinuclear complex was additionally characterised by X-ray diffraction. 相似文献
12.
《Journal of organometallic chemistry》1988,356(1):C29-C31
The dimer [Ru(η6-C16H16)Cl2]2 reacts with ligands L (L PMe2Ph, PPh3, C5H5N) to give both neutral monomeric [Ru(η6-C16H16)Cl2L] and cationic monomeric [Ru(η6-C16H16)ClL2]+ products. One example, [Ru(η6-C16H16)Cl(C5H5N)2]-[PF6], has been characterised by X-ray crystallography. Reaction with the bidentate ligand 2,2′-bipyridyl gives the mononuclear cation [Ru(η6-C16H16)Cl(bipy)]+, isolated as its [BPh4]− salt, whereas reaction with OMe− or OEt− gives dinuclear products [Ru(η6-C16H16)2(OR)3]+. 相似文献
13.
Structural Chemistry of the Alkyl- and Arylhaloarsenates(III) [Me2As2Cl5]–, [RAsCl3]–, [R2As2Br6]2– (R = Me, Et, Ph) and [Ph2AsX2]– (X = Cl, Br) The alkyl- and arylhaloarsenates(III) [Ph4P][Me2As2Cl5] ( 1 ), [Ph4P][RAsCl3] (R = Me, Et, Ph, 2 – 4 ), [Me3PhN][PhAsCl3] ( 5 ), [Ph4P]2[R2As2Br6] (R = Me, Et, Ph, 6 – 8 ), [n-Pr4N][Ph2AsCl2] ( 9 ) and [n-Bu4N][Ph2AsBr2] ( 10 ) have been prepared and their structures established by X-ray diffraction. In contrast to the chloroarsenates(III) 2 – 5 , which all contain isolated ψ-trigonal bipyramidal anions [RAsCl3]–, the analogous bromoarsenates(III) 6 – 8 exhibit dimeric structures. Whereas the trans sited As–Cl distances in 2 and 3 are very similar a pronounced degree of asymmetry is apparent for the Cl–As–Cl three-centre bonds in 4 and 5 [2.396(1) and 2.602(1) Å in 5]. In 6 and 7 Ci symmetry related RAsBr2 units are connected through long As…Br bonds [2.926(1) and 3.116(2) Å in 6 ]. The bromophenylarsenate(III) anion of 8 which contains two effectively undistorted ψ-trigonal bipyramids [PhAsBr3]– associated by weak As…Br interactions [3.117(2) Å]. In view of its very long bridging As…Cl distances the [Me2As2Cl5]– anion in 1 can, as 6 an 7 , be regarded as two MeAsCl2 molecules weakly linked through a chloride ion. 相似文献
14.
《Journal of Coordination Chemistry》2012,65(3):333-341
The reaction of [(η5-C9H7)Ru(η2-dppe)Cl] (1) with monodentate nitriles, (L) in the presence of NH4PF6 afforded the complexes [(η5-C9H7)Ru(η2-dppe)(L)]PF6, with L?=?CH3CN (2a), CH3CH=CHCN (2b), NCC6H4CN (2c), C6H5CH2CN (2d), respectively. However, reaction of 1 with NH4PF6 in methanol yielded an amine complex of the type [(η5-C9H7) Ru(η2-dppe)(NH3)]PF6 (3a). The complexes were fully characterized by spectroscopy and analytical data. The molecular structures of the complexes [(η5-C9H7)Ru(η2-dppe) (CH3CN)]PF6 (2a) and [(η5-C9H7)Ru(η2-dppe)(NH3)]PF6 (3a) have been determined by single crystal X-ray analyses. 相似文献
15.
《Journal of Coordination Chemistry》2012,65(19):3252-3269
The reaction of [(η5-C5Me5)M(μCl)Cl]2 with the ligand (L∩L) in the presence of sodium methoxide yielded compounds of general formula [(η5-C5Me5)M(L∩L)Cl] (1–10) (where M = Ir or Rh and L∩L = N∩O or O∩O chelate ligands). Azido complexes of formulation [(η5-C5Me5)M(L∩L)N3] (11–20) have been prepared by the reaction of [(η5-C5Me5)M(μN3)(X)]2 (X = Cl or N3) with the corresponding ligands or by the direct reaction of [(η5-C5Me5)M(L∩L)Cl] with NaN3. These azido complexes [(η5-C5Me5)M(L∩L)N3] undergo 1,3-dipolar cycloaddition reaction with substituted alkynes in CH2Cl2 and for the first time in ethanol at room temperature to yield iridium (III) and rhodium (III) triazoles (21–28). The compounds were characterized on the basis of spectroscopic data, and the molecular structures of 2 and 26 have been established by single crystal X-ray diffraction. 相似文献
16.
Ashish Kumar Singh Santosh Kumar Dubey Sanjeev Sharma Ru-Qiang Zou 《Journal of organometallic chemistry》2009,694(19):3084-2103
Binuclear complexes [{(η5-C5Me5)RhCl}2(μ-bsh)] (1) and [{(η5-C5Me5)IrCl}2(μ-bsh)] (2) containing N,N′-bis(salicylidine)hydrazine (H2bsh) are reported. The complexes 1 and 2 reacted with EPh3 (E = P, As) to afford cationic complexes [(η5-C5Me5)Rh(PPh3)(κ2-Hbsh)]PF6 (3), [(η5-C5Me5)Rh(AsPh3)(κ2-Hbsh)]PF6 (4), [(η5-C5Me5)Ir(PPh3)(κ2-Hbsh)]PF6 (5), and [(η5-C5Me5)Ir(AsPh3)(κ2-Hbsh)]PF6 (6) which were isolated as their hexafluorophosphate salts. Representative complexes 3 and 5 have been used as a metallo-ligand in the synthesis of binuclear complexes [(η5-C5Me5)RhCl(μ-bsh)Ru(η6-C10H14)Cl]PF6 (7) and [(η5-C5Me5)IrCl(μ-bsh)Ru(η6-C10H14)Cl]PF6 (8). The complexes under study have been fully characterized by analytical and spectral (FAB/ESI-MS, IR, NMR, electronic and emission) studies. Molecular structures of 1, 2, 3 and 5 have been determined crystallographically. Structural studies on 1 and 2 revealed the presence of extensive inter- and intra-molecular C-H···O and C-H···π weak bonding interactions. The complexes 1, 2, 3 and 5 moderately emit upon excitation at their respective MLCT bands. 相似文献
17.
Alba E. Díaz-Álvarez Pascale Crochet Maria Zablocka Victorio Cadierno Laure Vendier José Gimeno Jean-Pierre Majoral 《Polyhedron》2007
The diastereoselective κ2-P,N-coordination of a chiral tricyclic β-iminophosphine ligand to the half-sandwich ruthenium(II) fragments [RuCl(η6-arene)]+ (arene = C6H6, p-cymene, 1,3,5-C6H3Me3, C6Me6), [Ru(η6-p-cymene)(NCMe)]2+ and [Ru(η5-C5H5)(NCMe)]+ is described. The structures of the resulting mono- and dicationic cymene derivatives have been confirmed by X-ray crystallography. Studies on the catalytic activity of these Ru(II) compounds in Diels–Alder cycloaddition processes are also reported. 相似文献
18.
The reaction of the complex [{(η6-C6Me6)Ru(μ-Cl)Cl}2] 1 with sodium azide ligand gave two new dimers of the composition [{(η6-C6Me6)Ru(μ-N3)(N3)}2] 2 and [{(η6-C6Me6)Ru(μ-N3)Cl}2] 3, depending upon the reaction conditions. Complex 3 with excess of sodium azide in ethanol yielded complex 2. These complexes undergo substitution reactions with monodentate ligands to yield monomeric complexes of the type [(η6-C6Me6)Ru(X)(N3)(L)] {X = N3, Cl, L = PPh3 (4a, 9a); PMe2Ph (4b, 9b); AsPh3 (4c, 9c); X = N3, L = pyrazole (Hpz) (5a); 3-methylpyrazole (3-Hmpz) (5b) and 3,5-dimethyl-pyrazole (3,5-Hdmpz) (5c)}. Complexes 2 and 3 also react with bidentate ligands to give bridging complexes of the type [{(η6-C6Me6)Ru(N3)(X)]2(μ-L)} {X = N3, Cl, L = 1,2-bis(diphenylphosphino)methane (dppm) (6, 10); 1,2-bis(diphenylphosphino)ethane (dppe) (7, 11); 1,2-bis(diphenylphosphino)propane (dppp) (8, 12); X = Cl, L = 4,4-bipyridine (4,4′-bipy) (13)}. These complexes were characterized by FT-IR and FT-NMR spectroscopy as well as by analytical data.The molecular structures of the representative complexes [{(η6-C6Me6)Ru(μ-N3)(N3)}2] 2, [{(η6-C6Me6)Ru(μ-N3)Cl}2] 3,[(η6-C6Me6)Ru(N3)2(PPh3)] 4a and [{(η6-C6Me6)Ru(N3)2}2 (μ-dppm)] 6 were established by single crystal X-ray diffraction studies. 相似文献
19.
Novel cyclohexyl‐based aminophosphine ligands and use of their Ru(II) complexes in transfer hydrogenation of ketones
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Cezmi Kayan Nermin Meriç Murat Aydemir Yusuf Selim Ocak Ak𝚤n Baysal Hamdi Temel 《应用有机金属化学》2014,28(2):127-133
Two new aminophosphines – furfuryl‐(N‐dicyclohexylphosphino)amine, [Cy2PNHCH2–C4H3O] ( 1 ) and thiophene‐(N‐dicyclohexylphosphino)amine, [Cy2PNHCH2–C4H3S] ( 2 ) – were prepared by the reaction of chlorodicyclohexylphosphine with furfurylamine and thiophene‐2‐methylamine. Reaction of the aminophosphines with [Ru(η6‐p‐cymene)(μ‐Cl)Cl]2 or [Ru(η6‐benzene)(μ‐Cl)Cl]2 gave corresponding complexes [Ru(Cy2PNHCH2–C4H3O)(η6‐p‐cymene)Cl2] ( 1a ), [Ru(Cy2PNHCH2–C4H3O)(η6‐benzene)Cl2] ( 1b ), [Ru(Cy2PNHCH2–C4H3S)(η6‐p‐cymene)Cl2] ( 2a ) and [Ru(Cy2PNHCH2–C4H3S)(η6‐benzene)Cl2] ( 2b ), respectively, which are suitable catalyst precursors for the transfer hydrogenation of ketones. In particular, [Ru(Cy2PNHCH2–C4H3S)(η6‐benzene)Cl2] acts as a good catalyst, giving the corresponding alcohols in 98–99% yield in 30 min at 82 °C (up to time of flight ≤ 588 h?1). Copyright © 2014 John Wiley & Sons, Ltd. 相似文献
20.
Trevor Dooley Geoffrey Fairhurst Christine D. Chalk Khalil Tabatabaian Colin White 《Transition Metal Chemistry》1978,3(1):299-302
Summary The syntheses of the ethyltetramethylcyclopentadienyl complexes Ru(5-C5Me4Et)(CO)2Cl, CO(
5-C5Me4Et)(CO)2, and [M(
5-C5Me4Et)Cl2]2 (M = Rh or Ir) are described; the ruthenium complex reacts with triphenylarsine to give Ru(
5-C5Me4Et)(AsPh3)(CO)Cl.1H and13C n.m.r. spectra, i.r. spectra and the physical properties of the compounds are discussed and contrasted with the known C5H5 and C5Me5 analogues. 相似文献