Category: 14781-45-4

Stable and reactive diacetyliminoxyl radical in oxidative C-O coupling with β-dicarbonyl compounds and their complexes was written by Budnikov, Alexander S.;Krylov, Igor B.;Lastovko, Andrey V.;Paveliev, Stanislav A.;Romanenko, Alexander R.;Nikishin, Gennady I.;Terent’ev, Alexander O.. And the article was included in Organic & Biomolecular Chemistry in 2021.Computed Properties of C10H2CuF12O4 This article mentions the following:

In the present study, the unusually stable diacetyliminoxyl radical I was presented as a ”golden mean” between transient and stable unreactive radicals. It was successfully employed as a reagent for oxidative C-O coupling with β-dicarbonyl compounds II (R = Me, Bu, chloro, benzyl) and R¹C(O)CH(R²)C(O)R³ (R¹ = Me, phenyl; R² = Me, allyl, Ph, benzyl, chloro; R³ = Me, Ph, ethoxy). Using this model radical the catalytic activity of acids, bases and transition metal ions in free-radical coupling was revealed. 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. The applications of Copper-based nanoparticles have received great attention due to the earth-abundant, inexpensive and low toxicity. Copper nanoparticles can also catalyze the coupling reaction of nitrogen-containing nucleophiles, phenols, thiols, xanthogenates, selenium ruthenium nucleophiles and the like.Computed Properties of C10H2CuF12O4

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

Slow Magnetic Relaxation in Ladder-Type and Single-Strand 2p-3d-4f Heterotrispin Chains was written by Yang, Meng;Xie, Jing;Sun, Zan;Li, Licun;Sutter, Jean-Pascal. And the article was included in Inorganic Chemistry in 2017.Application of 14781-45-4 This article mentions the following:

Ladder-type and chain 2p-3d-4f complexes based on a bridging nitronyl nitroxide radical, namely, [LnCu(hfac)₅(NIT-Ph-p-OCH₂trz)]·0.5C₆H₁₄ [Ln = Y (1a), Dy (1b)] and [LnCu(hfac)₅(NIT-Ph-p-OCH₂trz)] [Ln = Y (2a), Dy (2b); NIT-Ph-p-OCH₂trz = 2-[4-[(1H-1,2,4-triazol-1-yl)methoxy]phenyl]-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide; hfac = hexafluoroacetylacetonate] were successfully achieved through a 1-pot reaction of the NIT-Ph-p-OCH₂trz radical with Cu(hfac)₂ and Ln(hfac)₃·2H₂O. Complexes 1a and 1b feature a ladder-like structure, where the rails are made of Ln(III) and Cu(II) ions alternatively bridged by nitronyl nitroxide and the triazole units while the NIT-Ph-p-OCH₂trz moieties act as the rungs of the ladder. Complexes 2a and 2b consist of 1D nitronyl nitroxide bridged Ln coordination polymers with dangly Cu(II) units connected to the triazole moieties. All of compounds exhibit ferromagnetic NIT-Dy and/or NIT-Cu interactions. Both Dy derivatives (1b and 2b) show frequency-dependent out-of-phase magnetic susceptibility signals in a zero field indicating slow magnetic relaxation behavior. In the experiment, the researchers used many compounds, for example, copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4Application 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. Copper nanoparticles can also catalyze the coupling reaction of nitrogen-containing nucleophiles, phenols, thiols, xanthogenates, selenium ruthenium nucleophiles and the like.Application of 14781-45-4

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

ScCO₂ assisted preparation of supported metal NPs. Application to catalyst design. was written by Pascu, Oana;Cacciuttolo, Bastien;Marre, Samuel;Pucheault, Mathieu;Aymonier, Cyril. And the article was included in Journal of Supercritical Fluids in 2015.SDS of cas: 14781-45-4 This article mentions the following:

Designing and developing materials with specific properties are nowadays important tasks. These could be achieved by choosing the adequate conditions, from a myriad of possibilities, being aware that slight changes in the preparation method could have major impact on the final material. With the work presented here, we are showing that kinetically controlled surface nano-structuring (NPs formation and deposition over solid supports) in scCO₂ is a versatile way for preparing active materials. Size, composition, morphol. and organization/architecture of supported metal NPs can be controlled by playing with the type of metal, metal precursor, reaction media composition (stronger or weaker reducing media) and different supports employed. Moreover, direct correlation between phys. (size, morphol., organization) and chem. properties (composition, surface chem.) are demonstrated with the systems catalytic behavior, yield and selectivity, exemplified with N-alkylation reaction of amines with alcs. In the experiment, the researchers used many compounds, for example, copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4SDS of cas: 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. Copper of different valence states can be used to catalyze the coupling reaction, especially the Ullmann coupling reaction. SDS of cas: 14781-45-4

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

Construction of Nitronyl Nitroxide-Based 3d-4f Clusters: Structure and Magnetism was written by Wang, Xiu-Feng;Hu, Peng;Li, Yun-Gai;Li, Li-Cun. And the article was included in Chemistry – An Asian Journal in 2015.Quality Control of copper(ii)hexafluor-2,4-pentanedionate This article mentions the following:

Three unprecedented nitronyl nitroxide radical-bridged 3d-4f clusters, [Ln₂Cu₂(hfac)₁₀(NIT-3py)₂(H₂O)₂] (Ln^III = Y, Gd, Dy), were obtained from the self-assembly of Ln(hfac)₃, Cu(hfac)₂, and the radical ligand. The Dy complex shows a slow relaxation of magnetization, representing the first nitronyl nitroxide radical-based 3d-4f cluster with single-mol. magnet behavior. 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. The applications of Copper-based nanoparticles have received great attention due to low toxicity and inexpensive, earth-abundant. Copper nanoparticles can catalyze the Ullmann coupling reaction in a wide range of applications.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”

Cu(hfac)₂ Complexes with Acyclic Nitroxide Prone to Single-Crystal to Single-Crystal Transformation and Showing Mechanical Activity was written by Golomolzina, Irina;Tolstikov, Svyatoslav;Letyagin, Gleb;Romanenko, Galina;Bogomyakov, Artem S.;Ya. Akyeva, Anna;Syroeshkin, Mikhail A.;Egorov, Mikhail P.;Morozov, Vitaly;Ovcharenko, Victor. And the article was included in Crystal Growth & Design in 2022.Reference of 14781-45-4 This article mentions the following:

The heterospin solid phases of the chain polymer [Cu(hfac)₂L^Et]_∞ and bicyclic mol. [Cu(hfac)₂L^Et]₂-I (L^R = pyrazolyl-substituted tert-butylnitroxide; 1-R-5-(tert-butyl-oxylamino)pyrazole, R = Et, Pr) were found to undergo spontaneous transformation into the bicyclic mol. [Cu(hfac)₂L^Et]₂-II. The single-crystal to single-crystal (SC-SC) transformation of [Cu(hfac)₂L^Et]₂-I into [Cu(hfac)₂L^Et]₂-II was recorded by X-ray diffraction anal. of the crystal as a function of time. At 255-277 K, the [Cu(hfac)₂L^Et]₂-I → [Cu(hfac)₂L^Et]₂-II SC-SC transformation proceeded for 12-18 h. The [Cu(hfac)₂L^Et]_∞ → [Cu(hfac)₂L^Et]₂-II SC-SC phase transformation was accompanied by a change in the crystal shape, spontaneous mech. displacements of crystals, and a change in color from orange to dark green. This process started, to a certain extent, already in the crystals lying under the layer of the mother solution After the crystals were separated from the solution, the SC-SC transformation [Cu(hfac)₂L^Et]_∞ → [Cu(hfac)₂L^Et]₂-II occurred completely within 4 h at room temperature Under normal conditions, [Cu(hfac)₂L^Pr]₂-I also undergoes transformation into [Cu(hfac)₂L^Pr]₂-II. At the macro level, the transformation [Cu(hfac)₂L^Pr]₂-I → [Cu(hfac)₂L^Pr]₂-II is accompanied by spontaneous fragmentation of crystals, visualized as a scatter of small particles of the formed phase in different directions. The reverse transformation [Cu(hfac)₂L^Pr]₂-II → [Cu(hfac)₂L^Pr]₂-I occurs when [Cu(hfac)₂L^Pr]₂-II is cooled below 225 K. When [Cu(hfac)₂L^Pr]₂-II was heated above 300 K, the irreversible SC-SC phase transformation [Cu(hfac)₂L^Pr]₂-II → [Cu(hfac)₂L^Pr]_∞ was observed, which caused a pronounced change in the color of the crystals from dark green to orange. Heat treatment of the [Cu(hfac)₂L^Pr]_∞ single crystal at 303 K on a diffractometer for 1 day or more caused partial melting of the starting crystal, disappearance of X-ray diffraction reflections from the sample under study, and appearance of reflections corresponding to the formation of the new polymer complex [Cu(hfac)₂L^*Pr]_∞, where L^*Pr is the product of transformation of the radical including the oxidation of L^Pr and migration of the nitroxide O atom to the heterocycle, leading to the formation of 5-(tert-butylimino)-1-propyl-1,5-dihydro-4H-pyrazol-4-one (L^*Pr). The results of the X-ray diffraction study of the phase transformations completely agreed with the data of magnetochem. measurements for the complexes. Having replaced the acyclic nitroxides L^Et and L^Pr by their diamagnetic structural analogs L^PEt (2,2-dimethyl-1-(1-ethyl-1H-pyrazol-5-yl)propan-1-one) and L^PPr (2,2-dimethyl-1-(1-propyl-1H-pyrazol-5-yl)propan-1-one), we obtained the complexes [Cu(hfac)₂L^PEt]_∞, [Cu(hfac)₂(L^PPr)₂], and [(Cu(hfac)₂)₃(L^PPr)₂], for which the transformations are absolutely not characteristic. It was also found that polymorphic transformations are also uncharacteristic of complexes of other metals with the acyclic nitroxides under study ([Zn(hfac)₂L^Et]₂, [Zn(hfac)₂L^Pr]₂, [Mn(hfac)₂L^Et]₂). Thus, it was shown that the presence of both the Cu(II) ion and coordinated O-N group of acyclic nitroxide in the solid phase are favorable conditions for the emergence of stereochem. nonrigidity and multiple phase transformations in the compounds of Cu(hfac)₂ with acyclic nitroxides. In the experiment, the researchers used many compounds, for example, copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4Reference 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. Copper of different valence states can be used to catalyze the coupling reaction, especially the Ullmann coupling reaction. Reference of 14781-45-4

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

A heterospin pressure sensor was written by Maryunina, Kseniya Yu.;Zhang, Xiao;Nishihara, Sadafumi;Inoue, Katsuya;Morozov, Vitaly A.;Romanenko, Galina V.;Ovcharenko, Victor I.. And the article was included in Journal of Materials Chemistry C: Materials for Optical and Electronic Devices in 2015.Related Products of 14781-45-4 This article mentions the following:

The effect of external pressure on the magnetic properties was studied for the 1st time for heterospin crystals based on the Cu(II) complex with nitroxide [Cu(hfac)₂NN-PzMe], which exhibits a spin-crossover-like phenomenon. An increase in the hydrostatic pressure to 0.14 GPa caused a significant shift of the magnetic anomaly temperature (from 150 K to 300 K). This complex actually functions as a highly sensitive external pressure sensor. Crystallog. data are given. 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. 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”

Synthesis, structural characterization and electrochemical and magnetic studies of M(hfac)₂ (M = Cu^II, Co^II) and Nd(hfac)₃ complexes of 4-amino-TEMPO was written by Navarro, Yolanda;Guedes, Guilherme P.;Cano, Joan;Ocon, Pilar;Iglesias, Maria Jose;Lloret, Francisco;Lopez-Ortiz, Fernando. And the article was included in Dalton Transactions in 2020.Computed Properties of C10H2CuF12O4 This article mentions the following:

Three mononuclear complexes [M(hfac)_x(ATEMPO)_y], where M = Cu(11) and Co(12), x = y = 2; M = Nd (13), x = 4, y = 1, and two polynuclear complexes [{Cu(hfac)₂(ATEMPO)}_n], where n = 2 (14) and 4 (15), were obtained by the reaction of M(hfac)_x (M = Cu^II, Co^II, Nd^III; x = 2, 3) with 4-amino-TEMPO (4-amino-2,2,6,6-tetramethylpiperidin-N-oxyl) in good yields and their structural, electrochem. and magnetic properties were examined In all cases, the radical is coordinated to the metal through the amino group, except 15, and the metal ions have an octahedral geometry, except 13. Different coordination architectures of the copper complexes were obtained as a function of the stoichiometry and solvents used. In complexes 11 and 12 the radicals show an equatorial-equatorial and axial-equatorial arrangement, resp., giving rise to two distinct 2D supramol. systems through intermol. interactions. Compound 13 is the first example of a lanthanide complex of the ATEMPO radical. The Nd^III ion adopts a rare nine-coordination via binding to four hfac ligands and the radical. The dinuclear complex 14 shows a (Cu-O)₂ core in which the Cu^II ions are bridged by the oxygen atoms from the hfac ligands. In compound 15 the ATEMPO radical acts as a bidentate ligand through the amino and nitroxyl groups leading to an unprecedented tetranuclear square-shaped framework. Cyclic voltammetry showed redox processes associated with the copper and TEMPO moieties. Electrochem. impedance spectroscopy revealed the temperature dependence of the conductivity for compound 15 with a maximum of 2.09 x 10^-5 S cm^-1 at 408 K. The magnetic behavior of complexes 11–15 is determined by metal-radical interactions. Ferromagnetic interaction was observed for complex 11 due to the existence of two different exchange pathways arising from the conformational arrangement of the radicals around the metal center, whereas the single conformation of the radical in complex 14 resulted in a weak antiferromagnetic coupling. In complex 15 both O-Cu and N-Cu contacts are present giving rise to ferromagnetic and antiferromagnetic interactions, resp. 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. Copper nanoparticles can also catalyze the coupling reaction of nitrogen-containing nucleophiles, phenols, thiols, xanthogenates, selenium ruthenium nucleophiles and the like.Computed Properties of C10H2CuF12O4

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

Dual-Functionalization of Alkynes via Copper-Catalyzed Carbene/Alkyne Metathesis: A Direct Access to the 4-Carboxyl Quinolines was written by Yao, Ruwei;Rong, Guangwei;Yan, Bin;Qiu, Lihua;Xu, Xinfang. And the article was included in ACS Catalysis in 2016.COA of Formula: C10H2CuF12O4 This article mentions the following:

A copper-catalyzed novel carbene/alkyne metathesis cascade reaction with alkyne-tethered diazo compounds is described. The whole transformation features a dual-functionalization of alkyne to install one C=N and one C=C bond on each carbon with azide and diazo groups, resp., in one reaction, which represents a practical synthetic alternative to the multisubstituted 4-carboxyl quinoline derivatives and with most of them in high to excellent yields. In the experiment, the researchers used many compounds, for example, copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4COA of Formula: C10H2CuF12O4).

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. Due to these characteristics, copper nanoparticles have generated a great deal of interest especially in the field of catalysis. COA of Formula: C10H2CuF12O4

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

Copper-Catalyzed Dehydrogenative Amidation of Light Alkanes was written by Fuentes, M. Angeles;Gava, Riccardo;Saper, Noam I.;Romero, Erik A.;Caballero, Ana;Hartwig, John F.;Perez, Pedro J.. And the article was included in Angewandte Chemie, International Edition in 2021.HPLC of Formula: 14781-45-4 This article mentions the following:

The functionalization of C-H bonds in light alkanes, particularly to form C-N bonds, remains a challenge. The dehydrogenative coupling of amides with C1-C4 hydrocarbons to form N-alkyl amide products with tBuOOtBu as oxidant, and a copper complex of a phenanthroline-type ligand as catalyst was reported. The reactions occurred in good yields in benzene or supercritical carbon dioxide as solvents. This strategy allowed for the determination of the relative reactivity of these alkane C-H bonds toward this amination process and showed, in contrast to prior work with larger alkanes, that the reactivity correlated with bond dissociation energies. 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 the earth-abundant, inexpensive and low toxicity. 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. HPLC of Formula: 14781-45-4

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

A family of 3d-4f Cu-Ln ladder-like complexes: Synthesis, structures and magnetic properties was written by Yang, Meng;Liang, Xiaohong;Zhang, Yandie;Ouyang, Zhijian;Dong, Wen. And the article was included in Polyhedron in 2020.Formula: C10H2CuF12O4 This article mentions the following:

A family of rare 2p-3d-4f ladder-like one-chain complexes namely [LnCu(hfac)₅NIT-Ph-p-OCH₂trz·0.5C₆H₁₄]_n (Ln = Er (1), Ho (2), Yb (3); NIT-Ph-p-OCH₂trz = 2-(4-((1H-1,2,4-triazol-1-yl)methoxy)phenyl)-4,4,5,5-tetra- methylimidazoline-1-oxyl-3-oxide; hfac = hexafluoroacetylacetonate) were successfully synthesized simultaneously through reacting nitronyl nirtroxide radical NIT-Ph-p-OCH₂trz with Cu(hfac)₂ and Ln(hfac)₃. The structures of complexes of 1–3 were elucidated by single-crystal x-ray structural anal. and all complexes feature ladder-like chain structures. Nonzero out-of-phase signals are observed for Ho derivatives (2) indicating single-chain magnet behavior. 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 the earth-abundant, low toxicity and inexpensive. Copper nanoparticles can catalyze the Ullmann coupling reaction in a wide range of applications.Formula: C10H2CuF12O4

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