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Arene complexe

Ti-arene complexes Complexes in which an aromatic system is bonded to a metal through its r-electrons. Generally only applied to complexes of uncharged aromatic systems, e.g. [(CeHe)2Cr] but formally applied to any complex of an aromatic system, e.g. [(CjH5)2Fe] as a complex of (C5H3)". [Pg.41]

The I9e electron-reservoir complexes Fe Cp(arene) can give an electron to a large number of substrates and several such cases have been used for activation. After ET, the [FenCp(arene)]+ cation left has 18 valence electrons and thus cannot react in a radical-type way in the cage as was the case for 20e Fe°(arene)2 species. Thus the 19e Fe Cp(arene) complexes react with the organic halide RX to give the coupled product and the [FeCp(arene)]+ cation. Only half of the starting complex is used e.g., the theoretical yield is limited to 50% [48] (Scheme VI) contrary to the reaction with Fe°(arene)2 above. [Pg.59]

The nucleophilic substitution of the nitro group in nitro-arene complexes works almost as well as that of Cl" and such substitutions were achieved by Chowdhurry et al. with O, S, and N nucleophiles and with stabilized carbanions [97,98] Eq. (28) and Table 8. [Pg.77]

Cl substituent. Upon hydrolysis, the monosubstituted iron-arene complex is thus isolated. [Pg.81]

Recently, it was shown that the attack of CN on [FeCp(C6H5Cl)]+ PFortho-position. In the intermediate cyclohexadienyl complex, the CN group migrates to the ipso-carbon, whereas Cl is displaced. The monosubstituted benzonitrile complex is subjected to a second ortho-CN- attack but hydride is not removed spontaneously to give back an arene complex (Scheme XIX). Removal of the hydride is achieved by oxidation using DDQ (2,3-dichloro-... [Pg.82]

As was suggested in the preceding discussion, most of the arene complexes isolated by metal-atom techniques are benzene derivatives. However, heterocyclic ligands are also known to act as 5- or 6-electron donors in transition-metal 7r-complexes (79), and it has proved possible to isolate heterocyclic complexes via the metal-atom route. Bis(2,6-di-methylpyridine)Cr(O) was prepared by cocondensation of Cr atoms with the ligand at 77 K (79). The red-brown product was isolated in only 2% yield the stoichiometry was confirmed by mass spectrometry, and the structure determined by X-ray crystal-structure analysis, which supported a sandwich formulation. [Pg.148]

Using an electron-gun source, tungsten atoms were reacted with benzene, toluene, or mesitylene at 77 K, to form the expected (arene)2W complex (42) in a yield of 30%, compared with the —2% yield from the previously published, bis(benzene)W synthesis (32). These arene complexes are reversibly protonated, to give the appropriate [(T7-arene)2WH] species. By using the same technique, the analogous, niobium complexes were isolated (43). [Pg.148]

Kiindig EP (2004) Synthesis of Transition Metal r/ -Arene Complexes. 7 3-20 Kiindig EP, Pape A (2004) Dearomatization via Complexes. 7 71-94... [Pg.292]

Further investigations revealed that this hydrogenation is accelerated in pentane solution. These results are shown in brackets in Table 3 [31]. Under optimized reaction conditions high catalyst TOF up to 5,300 were achieved when 10 was used. In the absence of both hydrogen and nitrogen, 10 was converted into the q -arene complexes such as the bis(imino)pyridine iron q -phenyl complex, 10-Phenyl, and the corresponding q -2,6-diisopropylphenyl complex, 10-Aryl, in the 85 15 ratio in... [Pg.34]

CeDs solution (Scheme 7). Both t -arene complexes were also determined by the X-ray diffraction and showed no reaction to hydrogen and olefins. Therefore, it was considered that the formation of the t -arene complexes was a deactivation pathway in the catalytic hydrogenation. [Pg.35]

Rigby J, Kondratenkov M (2004) Arene Complexes as Catalysts. 7 181-204 Risse T, Freund H-J (2005) Spectroscopic Characterization of Organometallic Centers on Insulator Single Crystal Surfaces From Metal Carbonyls to Ziegler-Natta Catalysts. 16 117-149... [Pg.286]

Several other versions of these catalysts have been developed. Arene complexes of monotosyl-l,2-diphenylethylenediamine ruthenium chloride give good results with a,(3-ynones.55 The active catalysts are generated by KOH. These catalysts also function by hydrogen transfer, with isopropanol serving as the hydrogen source. Entries 6 to 8 in Scheme 5.3 are examples. [Pg.394]

The only reported X-ray structure of a it-bonded diiodine exists in the 12/coronene associate [75], which shows the I2 to be located symmetrically between the aromatic planes and to form infinite donor/acceptor chains. -Coordination of diiodine over the outer ring in this associate is similar to that observed in the bromine/arene complexes (vide supra), and the I - C separation of 3.20 A is also significantly contracted relative to the stun of their van der Waals radii [75]. For the highly reactive dichlorine, only X-ray structures of its associates are observed with the n-type coordination to oxygen of 1,4-dioxane [76], and to the chlorinated fullerene [77]. [Pg.157]

Nazarov, A. A. et al. Anthracene-Tethered Ruthenium(II) Arene Complexes as Tools To Visualize the Cellular Localization of Putative Organometallic Anticancer Compounds. Inorg. Chem. 51, 3633-3639 (2012). [Pg.6]


See other pages where Arene complexe is mentioned: [Pg.133]    [Pg.250]    [Pg.177]    [Pg.180]    [Pg.53]    [Pg.240]    [Pg.263]    [Pg.264]    [Pg.567]    [Pg.940]    [Pg.48]    [Pg.89]    [Pg.447]    [Pg.79]    [Pg.145]    [Pg.148]    [Pg.168]    [Pg.523]    [Pg.524]    [Pg.293]    [Pg.120]    [Pg.120]    [Pg.58]    [Pg.60]    [Pg.166]    [Pg.179]    [Pg.170]   
See also in sourсe #XX -- [ Pg.169 , Pg.170 , Pg.171 , Pg.172 , Pg.173 , Pg.174 , Pg.175 ]




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1-Alkenes Arene chromium complexes

2-Cyclohexenone, 5-substituted via arene-metal complexes

Acetals metal-arene complexes

Acorenone via arene-metal complexes

Amines Arene chromium complexes

An arene ruthenium complex with polymerizable side chains for the synthesis of immobilized catalysts

Application of Arene Complexes

Arene Carbonyl Complexes

Arene Chalcogenolato Complexes of Zinc and Cadmium

Arene Complexes by

Arene EDA complexes

Arene Thiocarbonyl Chromium(O) Complexes

Arene and Related Complexes

Arene chromium complexes

Arene chromium tricarbonyl complexes decomplexation

Arene chromium tricarbonyl complexes direct synthesis

Arene chromium tricarbonyl complexes resolution

Arene complexes

Arene complexes

Arene complexes actinide

Arene complexes application

Arene complexes bonding

Arene complexes crosslinking

Arene complexes crystal structure

Arene complexes electronic spectra

Arene complexes electrophilic substitution

Arene complexes electrophilicity

Arene complexes ferrocene chemistry

Arene complexes from diene

Arene complexes lanthanoid

Arene complexes magnetic properties

Arene complexes methacrylates

Arene complexes norbornenes

Arene complexes nucleophilic addition

Arene complexes nucleophilic substitution

Arene complexes of chromium

Arene complexes of lanthanoids

Arene complexes of ruthenium

Arene complexes olefinic monomers

Arene complexes preparation

Arene complexes properties

Arene complexes radical polymerization

Arene complexes reactions

Arene complexes redox

Arene complexes ring-opening metathesis polymerization

Arene complexes structure

Arene complexes synthesis

Arene complexes thermochemistry

Arene complexes, metal atom synthesis

Arene complexes, osmium

Arene complexes, ring structures, -coordination

Arene complexes, technetium

Arene cyclopentadienyl osmium complexes

Arene cyclopentadienyl ruthenium complexes

Arene iron complex

Arene ligand reactivity complexes

Arene osmium alkyl complexes

Arene ruthenium complex, with

Arene ruthenium complexes

Arene ruthenium vinylidene complexes

Arene-Cr , complex

Arene-bridged complexes

Arene-cyclopentadienyl-iron complex

Arene-metal complexes Bonding

Arene-metal complexes Nucleophilic reactions

Arene-metal complexes Organic synthetic applications

Arene-metal complexes Preparation

Arene-metal complexes interaction

Arene-platinum complex

Arene-transition metal polymers complexes

Arene-tricarbonylchromium Complexes Resolution of Aldehydes

Arenes Chromium carbene complexes

Arenes catalysis, cobalt complexes

Arenes charge-transfer complexes

Arenes complexes

Arenes complexes

Arenes hexamethylbenzene complexes

Arenes metal complexes

Arenes palladium complexes

Aryl-Metal Complexes by Electrophilic Attack on Arenes

Aryl-Metal Complexes by Oxidative Addition of Arenes

Asymmetric Arene Complexes

Bis(arene)complexes

Bis-n-arene Complexes

Calix arene)4- complex

Catalysis arene-bridged complexes

Chiral Half-Sandwich Arene Complexes

Chlorine atoms complexes with arenes

Chromium arene complexes tricarbonyl deprotonation

Chromium arene tricarbonyl complexes

Chromium carbonyl arene complex

Chromium chiral arene complexes

Chromium complexes arenes

Chromium-arene complexes diastereoselective

Chromium-arene complexes enantioselective

Chromium-arene complexes, lithiation

Clay complexes arenes

Cobalt arene complexes

Complexes of Arenes and Other Alicyclic Ligands

Copper, arene complexes

Cyclopentadienyl and arene complexes

Cyclopentadienyl-metal arene complex

Cyclopentadienyliron complexes arenes

Cyclophanes arene complexes

Dendrimers coordinated arene complexes

Dendrimers cyclopentadienyliron arene complexes

Diene, Dienyl and Arene Complexes

Dihapto arene complex

Dihydrido Arene Iridium Triisopropylphosphine Complexes

Directed metalation metal-arene complexes

Electronic Spectra of Arene Complexes

Ethers coordinated arene ring complexes

Frenolicin, deoxysynthesis via arene-metal complexes

Functionalization of Arenes via C—H Bond Activation Catalysed by Transition Metal Complexes Synergy between Experiment and Theory

Gallium arene complexes

Group arene complexes

Hafnium arene complexes

Half-sandwich ruthenium -arene complexes

Hydrido Phosphine Arene Complexes of Molybdenum

Hydrogenation catalysts Arene chromium complexes

If-Arene osmium complexes

Ij‘-Arene ruthenium complexes

Indium arene complexes

Indole, 5-methoxydihydrosynthesis via arene-metal complexes

Iridium complexes arene

Iron complexes cyclopentadienyl arenes

Isoquinoline, 6-chlorotetrahydrosynthesis via arene-metal complexes

Lanthanide arene complexes

Lanthanum arene complexes

Lithiation arene complexes

Lithiation of Metal Arene Complexes

Magnesium arene complexes

Manganese arene -complexes, preparation

Manganese arene complexes

Metal arene complexes metallocenes

Metal carbonyls Arene chromium complexes

Metal-arene complexes

Metal-arene complexes catalysts

Metal-arene complexes chromium

Metal-arene complexes cobalt

Metal-arene complexes displacement reactions

Metal-arene complexes manganese

Metal-arene complexes molybdenum

Metal-arene complexes nickel

Metal-arene complexes palladium

Metal-arene complexes platinum

Metal-arene complexes reaction with nucleophiles

Metal-arene complexes reduction

Metal-arene complexes titanium

Metal-arene complexes tungsten

Metal-arene complexes, lithiation

Metallic coordinated arene ring complexes

Molybdenum arene complexes

Multidecker complexes 4-arene

N-Arene complexes

N-Arene complexes by metal atom reactions

Nickel arene complexes

Niobium arene complex

Nitrosonium/arene complex

Nucleophilic addition arene-metal complexes

Organometallic compounds arene complexes

Organometallic polymers arene complexes

Organometallic ruthenium -arene complexes

Other Arene Complexes

Palladium complexes arene

Platinum complexes arenes

Polyaromatic ethers arene complexes

Polycondensation arene complexes

Polymerization of Olefinic Monomers Functionalized with Cationic Cyclopentadienyliron Arene Complexes

Polymers Containing Arene Complexes

Polystyrenes arene complex

Preparation of Arene Complexes

Propionic acid, 2-phenyl-2- synthesis via arene-metal complex

Quinoline, 6-methoxytetrahydrosynthesis via arene-metal complexes

Radical arene complexes

Reactions of Arene Complexes

Rhenium, arene complexes

Rhodium, arene complexes

Ring structures arene complexes

Rr-arene complexes

Ru-arene complexes

Ruthenium -arene anticancer complexes

Ruthenium chiral arene complexes

Ruthenium complexes arene exchange

Ruthenium complexes cyclopentadienyl arenes

Scandium arene complexes

Silver Arene Cationic Complexes

Silver, arene complexes

Spiro cyclohexadiene via arene-metal complexes

Star coordinated arene complexes

Substitution reactions, arene --complexes

Sulfoxides metal-arene complexes

Tantalum, arene complexes

Tethered Arene Complexes of Ruthenium

Thallium arene complexes

Thermochemistry of Arene Complexes

Thermodynamic data arene complexes

Titanium, arene complexes

Transition metal arene complexes

Tricarbonylchromium arene complexes

Tris calix arene, metal complexes

Tungsten, arene complexes

Vanadium, arene complexes

Ytterbium complexes with arenes

Zirconium complexes with 7/6-arenes

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