Category: 14781-45-4

Pd/Cu-Catalyzed Dehydrogenative Coupling of Dimethyl Phthalate: Synchrotron Radiation Sheds Light on the Cu Cycle Mechanism was written by Kanazawa, Yuki;Mitsudome, Takato;Takaya, Hikaru;Hirano, Masafumi. And the article was included in ACS Catalysis in 2020.HPLC of Formula: 14781-45-4 This article mentions the following:

Pd/Cu-catalyzed dehydrogenative coupling of di-Me phthalate is an important industrial process for the production of aromatic polyimide precursors. Nonetheless, the detailed mechanism of the Cu cycle has remained unclear. The present study describes the detailed mechanism of the Cu cycle in the [Pd(OAc)₂]/Cu(OAc)₂/1,10-phenanthroline (phen) system. The solution-phase X-ray absorption fine structure anal. of the catalyst solutions and the FEFF fitting as well as the evaluation of the catalytic and stoichiometric reactions reveal the following observations: (i) the major intermediate in the catalytic cycle is a mononuclear divalent [Cu(OAc)₂]·2H₂O species, (ii) coordination of the phen ligand to the Cu catalyst significantly inhibits the catalytic activity, (iii) 2 equiv of Cu(OAc)₂·H₂O oxidizes the zerovalent “Pd(phen)” species to divalent [Pd(OAc)₂(phen)], and (iv) the divalent [Cu(OAc)₂]₂·2AcOH species is regenerated by the treatment of monovalent Cu(OAc) with AcOH in air. In the experiment, the researchers used many compounds, for example, copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4HPLC of Formula: 14781-45-4).

copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4) belongs to copper catalysts. The applications of Copper-based nanoparticles have received great attention due to low toxicity and inexpensive, earth-abundant. Due to these characteristics, copper nanoparticles have generated a great deal of interest especially in the field of catalysis. HPLC of Formula: 14781-45-4

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Synthesis of carbazoles based on gold-copper tandem catalysis was written by Choi, Subin;Srinivasulu, Vunnam;Ha, Sujin;Park, Cheol-Min. And the article was included in Chemical Communications (Cambridge, United Kingdom) in 2017.Formula: C10H2CuF12O4 This article mentions the following:

In the presence of Au(Ph₃P)Cl, AgOTf, and Cu(hfacac)₂, and using MnO₂ as a stoichiometric oxidant, aminophenylalkynyl diazodicarbonyl compounds (diazo anilinoalkynes) such as I underwent chemoselective tandem hydroamination, insertion, and aromatization reactions to yield hydroxycarbazoles such as II in 49-82% yields. The aminophenylalkynyl diazodicarbonyl compounds were prepared in four steps (three-step longest linear sequences) from anilines, propargyl bromides, and dicarbonyl compounds In the experiment, the researchers used many compounds, for example, copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4Formula: C10H2CuF12O4).

copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4) belongs to copper catalysts. The applications of Copper-based nanoparticles have received great attention due to low toxicity and inexpensive, earth-abundant. It is clear from the impact copper catalysis has had on organic synthesis that copper should be considered a first line catalyst for many organic reactions.Formula: C10H2CuF12O4

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Coordination Chemistry of 2,2′-Bipyridyl- and 2,2′:6′,2”-Terpyridyl-Substituted BEDT-TTFs: Formation of a Supramolecular Capsule Motif by the Iron(II) Tris Complex of 2,2′-Bipyridine-4-thiomethyl-BEDT-TTF was written by Wang, Qiang;Martin, Lee;Blake, Alexander J.;Day, Peter;Akutsu, Hiroki;Wallis, John D.. And the article was included in Inorganic Chemistry in 2016.Recommanded Product: 14781-45-4 This article mentions the following:

Mols. of tris(2,2′-bipyridine-4-thiomethyl-BEDT-TTF)iron(II) (BEDT-TTF = bis(ethylenedithio)tetrathiafulvalene) assemble in pairs to form a novel supramol. capsular structure in the solid state. Three BEDT-TTF residues from one complex lie in the three grooves between coordinated bipyridines of the other complex, and vice versa, to form a capsule with 3-fold rotational symmetry and an internal volume of ∼160 ų. Further aspects of the coordination chem. of this ligand, its 6-substituted isomer, and the 2,2′:6’2”-terpyridyl-4′-thiomethyl-BEDT-TTF analog are described, [M(Lⁿ)₃](PF₆)₂ and [M(L²)(hfac)₂] , where M = Zn, Mn, Fe, Co, Ni, or Cu, Lⁿ = bipyridines terpyridine substituted tetrathiafulvalenes, and hfac = hexafluoroacetylacetonato. In the experiment, the researchers used many compounds, for example, copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4Recommanded Product: 14781-45-4).

copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4) belongs to copper catalysts. Copper catalyst has received great attention owing to the low toxicity and low cost. These ligands enable the reaction promoted in mild condition. The reaction scope has also been greatly expanded, rendering this copper-based cross-coupling attractive for both academia and industry. Recommanded Product: 14781-45-4

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Rhodium-catalyzed enone carbonyl directed C-H activation for the synthesis of indanones containing all-carbon quaternary centers was written by Lou, Jiang;Han, Wenjia;Liu, Zhuqing;Xiao, Jiaqi. And the article was included in Organic Chemistry Frontiers in 2021.Quality Control of copper(ii)hexafluor-2,4-pentanedionate This article mentions the following:

Rh(III)-Catalyzed enone carbonyl directed annulative coupling of α-aroyl ketene dithioacetals and diazo compounds were realized via aryl and olefinic C-H bond activation. This transformation offered highly functionalized indanone derivatives bearing a quaternary carbon stereocenter at the β-position. The protocol exhibited high efficiency, broad substrate scope, and high compatibility with functional groups. In the experiment, the researchers used many compounds, for example, copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4Quality Control of copper(ii)hexafluor-2,4-pentanedionate).

copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4) belongs to copper catalysts. Transition metal-catalyzed chemical transformation of organic electrophiles and organometallic reagents belong to the most important cross-coupling reaction in organic synthesis. Copper of different valence states can be used to catalyze the coupling reaction, especially the Ullmann coupling reaction. Quality Control of copper(ii)hexafluor-2,4-pentanedionate

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Synthesis and reactions of N-heterocycle functionalised variants of heterometallic {Cr₇Ni} rings was written by Whitehead, George F. S.;Ferrando-Soria, Jesus;Carthy, Laura;Pritchard, Robin G.;Teat, Simon J.;Timco, Grigore A.;Winpenny, Richard E. P.. And the article was included in Dalton Transactions in 2016.Related Products of 14781-45-4 This article mentions the following:

Here the authors present a series of linked cage complexes of functionalized variants of the octametallic ring {Cr₇Ni} with the general formula [Pr₂NH₂][Cr₇NiF₈(O₂C^tBu)₁₅(O₂CR)], where HO₂CR is a N-heterocycle containing carboxylic acid. These compounds are made by reacting [Pr₂NH₂][Cr₇NiF₈(O₂C^tBu)₁₅(O₂CR)] with a variety of simple metal salts and metal dimers. The carboxylic acids studied include iso-nicotinic acid, 3-(4-pyridyl)acrylic acid and 4-pyridazine carboxylic acid. These new linked cage complexes have been studied structurally and the study highlights the versatility of functionalized {Cr₇Ni} as a Lewis base ligand. As {Cr₇Ni} is a putative mol. electron spin qubit this work contributes to the authors’ understanding of the chem. that might be required to assemble mol. spin qubits. In the experiment, the researchers used many compounds, for example, copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4Related Products of 14781-45-4).

copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4) belongs to copper catalysts. Transition metal-catalyzed chemical transformation of organic electrophiles and organometallic reagents belong to the most important cross-coupling reaction in organic synthesis. The copper-mediated C-C, C-O, C-N, and C-S bond formation is a part of one oldest reaction, emphasizing the Ullmann cross-coupling reaction.Related Products of 14781-45-4

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

A new family of multinuclear mixed-ligand copper(II) clusters: Crystal structures, magnetic properties and catecholase-like activity was written by Calancea, Sergiu;Reis, Samira G.;Guedes, Guilherme P.;Cassaro, Rafael A. Allao;Semaan, Felipe;Lopez-Ortiz, Fernando;Vaz, Maria G. F.. And the article was included in Inorganica Chimica Acta in 2016.Name: copper(ii)hexafluor-2,4-pentanedionate This article mentions the following:

The authors report a family of mixed-ligand Cu(II) clusters obtained with different nuclearities: (Et₃NH)[Cu₃(μ₃-OH)(μ-dppi)₃(μ-hfac)₃] (1), [Cu₄(μ-dppi)₄(Hdppi)₂(hfac)₄] (2), [Cu₅(μ-O)₂(μ-dppi)(μ-Hdppi)₂(μ-hfac)₃(hfac)₂] (3) and [Cu₆(μ-O)₂(μ-dppi)₂(μ-Hdppi)(μ-hfac)₆] (4), where hfac = hexafluoroacetylacetonate, dppi = diphenylphosphinate and Hdppi = diphenylphosphinic acid. Complexes 3 and 4 are the first examples of Cu(II) clusters containing a μ-oxo O atom and hfac as bridging ligands. The magnetic properties of all compounds showed predominant antiferromagnetic interactions and the magnetic coupling constants were evaluated using an isotropic exchange model based on the spin topol. A spin frustration phenomena was observed for the equilateral cyclic trinuclear complex (1), thus an antisym. exchange term was also considered to fit the exptl. magnetic data. The obtained J values are at -89 cm^-1 to 1.7 cm^-1 and were interpreted based on structural features. The electrochem. properties and catalytic activity of complexes 1 and 2 were studied and compared with the [Cu(hfac)₂] precursor. Catecholase-like activity of Cu(II) complexes via oxidation of 3,5-di-tert-butylcatechol (3,5-DTBC) to 3,5-di-tert-butylquinone (3,5-DTBQ) was performed. In the experiment, the researchers used many compounds, for example, copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4Name: copper(ii)hexafluor-2,4-pentanedionate).

copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4) belongs to copper catalysts. Copper has continued to be one of the most utilized and important transition metal catalysts in synthetic organic chemistry. It is clear from the impact copper catalysis has had on organic synthesis that copper should be considered a first line catalyst for many organic reactions.Name: copper(ii)hexafluor-2,4-pentanedionate

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Electronic Band Structure and Electrocatalytic Performance of Cu₃N Nanocrystals was written by Wang, Li-Chen;Liu, Bo-Heng;Su, Chung-Yi;Liu, Wei-Szu;Kei, Chi-Chung;Wang, Kuan-Wen;Perng, Tsong-Pyng. And the article was included in ACS Applied Nano Materials in 2018.Computed Properties of C10H2CuF12O4 This article mentions the following:

High-d. discrete Cu₃N nanocrystals were deposited on XC-72 C black by plasma-enhanced at. layer deposition (PEALD). This heterostructured noble-metal-free catalyst served as a high-performance electrocatalyst for enhanced O reduction reaction (ORR). The electronic band structure of Cu₃N was determined by UPS and UV-visible spectrophotometry. The work function (Φ) of the Cu₃N nanocrystals is 5.04 eV, which is lower than that of Pt (∼5.60 eV). With lower energy barrier, Cu₃N would exhibit stronger electron transfer to cause ORR than typical Pt catalyst. The UPS anal. also confirmed the synergistic coupling effect between the Cu₃N nanocrystals and the C support. Coupled with the XC-72, the Cu₃N200/C showed even smaller Φ (=4.34 eV) than pure Cu₃N nanocrystals. Thus, the Cu₃N200/C electrocatalyst prepared with 200 ALD cycles exhibited similar ORR catalytic activity, significantly improved mass activity, and potentially greater durability than its Pt/C counterpart in alk. solution The fabrication of Cu₃N by PEALD and its good performance in ORR suggest a promising alternative of nonnoble-metal electrocatalyst for application in fuel cells. In the experiment, the researchers used many compounds, for example, copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4Computed Properties of C10H2CuF12O4).

copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4) belongs to copper catalysts. Copper catalyst has received great attention owing to the low toxicity and low cost. It is clear from the impact copper catalysis has had on organic synthesis that copper should be considered a first line catalyst for many organic reactions.Computed Properties of C10H2CuF12O4

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Hollow Microcrystals of Copper Hexafluoroacetylacetonate-Pyridine Derivative Adducts via Supercritical CO₂ Recrystallization was written by Lopez-Periago, Ana;Vallcorba, Oriol;Domingo, Concepcion;Ayllon, Jose A.. And the article was included in Crystal Growth & Design in 2016.Related Products of 14781-45-4 This article mentions the following:

An innovative crystallization process, based on the use of the ecofriendly supercritical carbon dioxide (scCO₂) solvent, is presented for the production of coordination compound macrocrystals [Cu(hfacac)₂(dPy)₂], with intriguing prismatic hollow structures and single polymorphic forms. In contrast, conventional solvents yielded compact microstructures. The studied pyridine derivatives (dPy) were 4-phenylpyridine, PhPy; 4-benzylylpyridine, BzPy; and 4-acetylpyridine, AcPy. In the specific case of the [Cu(hfacac)₂(AcPy)₂] adduct, the use of scCO₂ as a solvent allowed obtaining a pure polymorph, while the conventional solvent trials yielded a mixture of two polymorphs. Four new crystalline structures were resolved from single crystal x-ray diffraction. All the structures consist of mononuclear complexes connected through intermol. interactions, including H···H, H···O, F···F, C-F···C_aromatic, and/or C-F···π interactions, generating bi-dimensional networks that determine their crystallization mode in scCO₂. In the experiment, the researchers used many compounds, for example, copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4Related Products of 14781-45-4).

copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4) belongs to copper catalysts. The applications of Copper-based nanoparticles have received great attention due to the earth-abundant, inexpensive and low toxicity. It is clear from the impact copper catalysis has had on organic synthesis that copper should be considered a first line catalyst for many organic reactions.Related Products of 14781-45-4

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Controlling π-π Interactions through Coordination Bond Formation: Assembly of 1-D Chains of acac-Based Coordination Compounds was written by Leon-Zarate, Rafael;Valdes-Martinez, Jesus. And the article was included in Crystal Growth & Design in 2021.Recommanded Product: copper(ii)hexafluor-2,4-pentanedionate This article mentions the following:

Authors present a new approach for the construction of 1-D chains of acac-based copper coordination compounds assembled through π-π aromatic interactions. They use 3-(phenylethynyl)pyridine derivatives as ligands that can establish aromatic interactions to intermolecularly bind the coordination compounds The crystal networks of the free pyridines show that there is no control over aromatic interactions, since different interactions are present. On the other hand, the supramol. behavior of the coordination compounds is very homogeneous since, in all of the crystal networks, the intended 1-D chains are present. Given the polarization of the aromatic rings due to coordination, reflected in the calculated mol. electrostatic potential maps, authors gain control over the π-π interaction geometry, promoting a head to tail interaction between the coordinated 3-(phenylethynyl)pyridines. This strategy to constructing 1-D chains is reliable and reproducible; thus, these types of π-π aromatic interactions are a useful supramol. tool to control the mol. assembly in the solid state. In the experiment, the researchers used many compounds, for example, copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4Recommanded Product: copper(ii)hexafluor-2,4-pentanedionate).

copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4) belongs to copper catalysts. Copper has continued to be one of the most utilized and important transition metal catalysts in synthetic organic chemistry. Copper nanoparticles can catalyze the Ullmann coupling reaction in a wide range of applications.Recommanded Product: copper(ii)hexafluor-2,4-pentanedionate

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Homo- and heterometallic complexes constructed from hexafluoroacetylacetonato and Schiff-base complexes as building-blocks was written by Mocanu, Mihaela I.;Shova, Sergiu;Lloret, Francesc;Julve, Miguel;Andruh, Marius. And the article was included in Journal of Coordination Chemistry in 2018.Related Products of 14781-45-4 This article mentions the following:

Three new homo- and heterotrimetallic complexes were synthesized and crystallog. characterized: [Cu₂(saldmpn)₂(μ-OCH₃)₂Cu₂(hfac)₂] (1), [Ni₂(valaepy)₂(hfac)₂] (2), [Cu(saldmpn)Co(hfac)₂] (3) [H₂saldmpn is the Schiff-base resulting from condensation of salicylaldehyde with 2,2-dimethyl-1,3-diaminopropane and Hvalaepy results from the reaction of o-vanillin with 2-(2-aminoethyl)pyridine]. The structure of consists of a neutral tetranuclear species that can be viewed as resulting from mutual coordination of one {(hfac)Cu(μ-OCH₃)₂(Cu(hfac))} and two {Cu(saldmpn)} building blocks. Compound is a binuclear complex that results from two {Ni(hfac)(valaepy)} fragments, the nickel(II) ions bridged by the two phenoxide-oxygens. The heterobinuclear complex results from coordination of the [Cu(saldmpn)] metalloligand to cobalt(II) from the {Co(hfac)₂} unit. The magnetic properties of were studied from 1.9 to 300 K. An overall ferromagnetic behavior is observed for and leading to S = 2 low-lying spin state for each. In the case of, a non-magnetic ground state results because of the occurrence of an intramol. antiferromagnetic coupling between the copper(II) ion and the high-spin cobalt(II) ion, this last one behaving as an effective spin S_eff = 1/2 at low temperatures where only the ground Kramers doublet of Co(II) is thermally populated. The values of the intramol. magnetic couplings in are compared with those from the literature on related systems. In the experiment, the researchers used many compounds, for example, copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4Related Products of 14781-45-4).

copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4) belongs to copper catalysts. The applications of Copper-based nanoparticles have received great attention due to low toxicity and inexpensive, earth-abundant. These ligands enable the reaction promoted in mild condition. The reaction scope has also been greatly expanded, rendering this copper-based cross-coupling attractive for both academia and industry. Related Products of 14781-45-4

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”