Patrick Veya, Carlo Floriani, Angiola Chiesi‐Villa, Carlo Guastini,
The N,N-diphenylacetamide enolato anion oxygen bonded to zirconium in [Ph2N–C(CH2)OZr-(η5-C5H5)2(Cl)] has been synthesised, which, when reacted with [Cr(CO)5(thf)], led to the dimetallic form of the amide enolato O-bonded to zirconium and C-bonded to chromium.
Tópico(s): Synthetic Organic Chemistry Methods
1991 - Royal Society of Chemistry | Journal of the Chemical Society Chemical Communications
... can be an oxo, peroxo, hydrido, alkoxo, or enolato anion and the first example of the concept of ...
Tópico(s): Synthetic Organic Chemistry Methods
2006 - American Chemical Society | Organometallics
Produção Nacional
Revisado por pares
Ousmane Sall, Farba Bouyagui Tamboura, Adama Sy, Aliou Hamady Barry, Ibrahima Elhadji Thiam, Mohamed Gaye, Javier Ellena,
... Cu II cations are linked by a chloride anion and an enolato oxygen. An open-cube structure is generated in ... of two Cu II ions bridged by two enolato oxygen atoms acting in a μ 3 -mode. The Cu II atoms in each of the two CuO 3 NCl units are connected by one μ 2 -O and two μ 3 -O atoms from deprotonated hydroxyl groups and one chloride anion to the three other Cu II centres. Each ...
Tópico(s): Crystal structures of chemical compounds
2019 - International Union of Crystallography | Acta Crystallographica Section E Crystallographic Communications
Yoshiaki Tanabe, Hidetake Seino, Youichi Ishii, Masanobu Hidai,
... alkylideneamido ligand to give the corresponding (nitrido)(nitrile-enolato) complex trans-[Mo(N)(NCCHCOBut)(dppe)2] together with 4,4-dimethyl-1-penten-3-one. Furthermore, treatment of 2 with large excess amounts of 4-chlorobenzoylacetonitrile followed by anion metathesis with [NHEt3][OTf] (OTf = OSO2CF3) resulted in the isolation of the cationic (imido)(nitrile-enolato) complex trans-[Mo{NCH2CH2CO(C6H4Cl-4)}{NCCHCO(C6H4Cl- ...
Tópico(s): Synthetic Organic Chemistry Methods
2000 - American Chemical Society | Journal of the American Chemical Society
A.Z. El‐Sonbati, M.A. Diab, Amany Belal, Sh.M. Morgan,
... the azodye nitrogen, oxygen keto moiety and two enolato oxygen atoms. The molar conductivities show that all the complexes are non-electrolytes. Bidentate chelating nature of β-diketone and azorhodanine anions in the complexes was characterized by (electronic, infrared ...
Tópico(s): Organometallic Compounds Synthesis and Characterization
2012 - Elsevier BV | Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy
Eva Hevia, G.W. Honeyman, Alan R. Kennedy, Robert E. Mulvey,
... zincate reagent in coordinating to the dearomatized enolate anion of the 1,6-addition adduct allows the adduct to be isolated in a pure crystalline form. An X-ray crystallographic study of the adduct reveals a molecular structure based on a near-planar, four-element (NaOZnN) ring with a TMP-N and an enolato-O bridge. The Na and Zn atoms also ...
Tópico(s): Asymmetric Hydrogenation and Catalysis
2005 - American Chemical Society | Journal of the American Chemical Society
Pascale Crochet, Bernard Demerseman, Christian Rocaboy, Dana Schleyer,
... of KOAc and affords selectively the stable phosphinito enolato derivatives (η6-arene)[η2-Ph(MeO)PC(R) ... involved in the coupling process of functional phosphino enolato ligands with 1-alkynes HC⋮CR''. The reaction ... carbon bond and is catalyzed by the fluoride anion. When R'' = H, a subsequent cleavage of the ... which implies also the capture of a halide anion by phosphorus in a transient intermediate.
Tópico(s): Metal complexes synthesis and properties
1996 - American Chemical Society | Organometallics
David R. Armstrong, Jennifer A. Garden, Alan R. Kennedy, Robert E. Mulvey, Stuart D. Robertson,
... on the sole evidence of an isolated crystalline enolato intermediate.24 Table 1 reveals that the three ...
Tópico(s): Asymmetric Synthesis and Catalysis
2013 - Wiley | Angewandte Chemie International Edition
Pierre Braunstein, Yves Chauvin, Jens Nähring, Yves Dusausoy, Daniel Bayeul, António Tiripicchio, Franco Ugozzoli,
... The fac and mer isomers of the tris(enolato) RuII complex [Na][[graphic omitted])Ph}3]11a ... respectively, in a trans position. In the chiral anion of complex 12 the distorted octahedral structure has ...
Tópico(s): Synthetic Organic Chemistry Methods
1995 - Royal Society of Chemistry | Journal of the Chemical Society. Dalton transactions
Antonio Mezzetti, Cristina Bonaccorsi,
... is supported by stoichiometric reactions with the isolated enolato complexes formed upon reaction with activated ruthenium species ...
Tópico(s): Asymmetric Hydrogenation and Catalysis
2005 - Bentham Science Publishers | Current Organic Chemistry
Nouria A. Al‐Awadi, Nadia M. Shuaib, Ali El‐Dissouky,
... nickel(II) through the azomethine nitrogen and the enolato oxygen atoms. The room temperature magnetic moment values ...
Tópico(s): Synthesis and Characterization of Heterocyclic Compounds
2006 - Elsevier BV | Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy
Dolores Romero Morales, M.E.N. Clemente, J. Pérez, L. Riera, Vı́ctor Riera, Daniel Miguel,
... with KCH2C(O)Ar afford the O-bound enolato complexes [M(η3-C3H4-R){OC(CH2)Ar}( ...
Tópico(s): Coordination Chemistry and Organometallics
2003 - American Chemical Society | Organometallics
Csilla Dudás, Bence Kutus, Gábor Peintler, István Pálinkó, Pál Sipos,
... methylene group underwent deprotonation yielding the carbanion-enolate anion. The deprotonation constants, pKaα and pKaβ, were found to be 15.16 ± 0.01 and 14.41 ± 0.01, respectively. The calcium complexing behaviour of the two ligands was also studied in strongly alkaline medium. Under these conditions, the Ca2+ ion was capable of promoting the deprotonation of the ligands and forming various enolato-type complexes. The formation of both mono- and ...
Tópico(s): Inorganic and Organometallic Chemistry
2018 - Elsevier BV | Polyhedron