Tag: M.W=300-350

Corain, B. published the artcileCarbon-carbon bond formation upon addition of cyanogen to metal-coordinated β-carbonylenolato and β-ketoiminato ligands, Quality Control of 14284-06-1, the publication is Journal of Organometallic Chemistry (1982), 232(2), C59-C61, database is CAplus.

The addition of C₂N₂ to a variety of metal-coordinated β-carbonylenolato and β-ketoiminato ligands under ambient conditions affords novel compounds bearing cyanoimino-substituted organometallic rings. The key step of this process is the ready formation of a C-C σ bond upon insertion of C₂N₂ into the C-H methino bond.

Journal of Organometallic Chemistry published new progress about 14284-06-1. 14284-06-1 belongs to copper-catalyst, auxiliary class Copper, name is Copper(II) ethylacetoacetate, and the molecular formula is 0, Quality Control of 14284-06-1.

Referemce:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4660968/,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Joubert, Nicolas published the artcileMild, base-free copper-catalyzed N-arylations of heterocycles using potassium aryltrifluoroborates in water under air, SDS of cas: 14284-06-1, the publication is Tetrahedron Letters (2010), 51(22), 2994-2997, database is CAplus.

An economic, mild and efficient copper-catalyzed methodol. for the N-arylation of heterocycles was optimized using potassium aryltrifluoroborates in water. E.g., a pre-formed copper(II) Et acetoacetate complex catalyzed the N-arylation of imidazole by PhBF₃K to give 26% 1-phenylimidazole.

Tetrahedron Letters published new progress about 14284-06-1. 14284-06-1 belongs to copper-catalyst, auxiliary class Copper, name is Copper(II) ethylacetoacetate, and the molecular formula is 0, SDS of cas: 14284-06-1.

Referemce:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4660968/,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Doraswamy, Uma published the artcileStudies in some β-keto ester complexes, Quality Control of 14284-06-1, the publication is Journal of the Indian Chemical Society (1976), 53(1), 100-2, database is CAplus.

Proton-ligand and metal (Cu2+, Ni2+, Zn2+, Be2+) complex stability constants were determined for the β-keto esters Et-, Et-2-Me-, Et-2-Et-, Et-2-Pr-, Et-2-iso-Pr-, and Et-2-Bu-acetoacetate by pH titration in 50 volume % aqueous dioxane at 30° and ionic strength 0.2. The inductive and steric effects of the alkyl substituents result in a decreased stability of the metal complexes compared to the β-diketone complexes.

Journal of the Indian Chemical Society published new progress about 14284-06-1. 14284-06-1 belongs to copper-catalyst, auxiliary class Copper, name is Copper(II) ethylacetoacetate, and the molecular formula is 0, Quality Control of 14284-06-1.

Referemce:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4660968/,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Matare, Gilbert J. published the artcileAcetylation of β-diketone copper(II) chelates by treatment with ketene, Recommanded Product: Copper(II) ethylacetoacetate, the publication is Synthesis (1994), 381-2, database is CAplus.

Geminal triketones R¹COCHAcCOR² (R¹ = R² = alkyl, Ph; R¹ = Me, R² = EtO) were prepared by acetylation of β-diketone [R¹COCH₂COR²] Cu(II) chelates with ketene, followed by decomplexation with 15% HCl solution

Synthesis published new progress about 14284-06-1. 14284-06-1 belongs to copper-catalyst, auxiliary class Copper, name is Copper(II) ethylacetoacetate, and the molecular formula is 0, Recommanded Product: Copper(II) ethylacetoacetate.

Referemce:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4660968/,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Tudose, Maria published the artcileAnalytical studies on some organometallic compounds of Cu²⁺ precursors for T_c superconductors, HPLC of Formula: 14284-06-1, the publication is Analele Stiintifice ale Universitatii “Al. I. Cuza” din Iasi, Chimie (2000), 8(1), 51-58, database is CAplus.

Data on synthesis, solubility in common organic solvents and behavior at thermal decomposition studied by DTA analyses of some organometallic compounds of Cu²⁺ which are precursors for superconductor ceramics of high T_c by either sol-gel technique or metal organic decomposition are presented. The organometallic compounds used in the present paper are an acetylacetonate complex, an Et acetoacetate complex and a mixed alkoxide: acetylacetonate-methoxyethoxide of Cu. These complexes were obtained by the reaction between a Cu salt (acetate, chloride) and a chelating agent (acetylacetone, Et acetoacetate) under the different conditions of temperature and pH medium. The alkoxide was synthesized by the alcoholysis of acetylacetonate complex with MeOH and then methoxyethanol under the basic conditions. The results on these analyses are useful for selection of solvents for their dissolving. The best solvent selected is then used in the techniques for deposition of thin layers by deep-coating or spraying, as well as in coloring of glasses.

Analele Stiintifice ale Universitatii “Al. I. Cuza” din Iasi, Chimie published new progress about 14284-06-1. 14284-06-1 belongs to copper-catalyst, auxiliary class Copper, name is Copper(II) ethylacetoacetate, and the molecular formula is C10H2F12NiO4, HPLC of Formula: 14284-06-1.

Referemce:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4660968/,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Igumenov, I. K. published the artcileStudy of the volatility of some copper(II) β-diketonates, Synthetic Route of 14284-06-1, the publication is Koordinatsionnaya Khimiya (1978), 4(2), 163-9, database is CAplus.

The vapor pressure, P, of CuL₂ chelates, where L = R₁COCH₂COR₂; R₁ = Me, CF₃, C₃F₇, Ph; and R₂ = Me, CF₃, CMe₃, Ph, OEt, and C₄H₃S, was determined at 80-200° by a static method. From the exptl. P data, the heat, entropy, and free energy of vaporization of the chelates were calculated

Koordinatsionnaya Khimiya published new progress about 14284-06-1. 14284-06-1 belongs to copper-catalyst, auxiliary class Copper, name is Copper(II) ethylacetoacetate, and the molecular formula is 0, Synthetic Route of 14284-06-1.

Referemce:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4660968/,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Clavier, Herve published the artcileNew bidentate alkoxy-NHC ligands for enantioselective copper-catalyzed conjugate addition, SDS of cas: 14284-06-1, the publication is Tetrahedron: Asymmetry (2005), 16(5), 921-924, database is CAplus.

Chiral alkoxy-imidazolinium salts are easily available via a five-step procedure starting from β-amino alcs. This new family of alkoxy-N-heterocyclic carbene (NHC) precursors is shown to be highly active in the enantioselective copper-catalyzed conjugate addition to cyclic enones. Complete conversion with low catalyst loading and good enantiomeric excesses up to 93% were obtained at room temperature A ligand thus prepared and optimized was a (2S)-2-amino-4-methyl-1-pentanol derivative (I).

Tetrahedron: Asymmetry published new progress about 14284-06-1. 14284-06-1 belongs to copper-catalyst, auxiliary class Copper, name is Copper(II) ethylacetoacetate, and the molecular formula is 0, SDS of cas: 14284-06-1.

Referemce:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4660968/,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Garra, Patxi published the artcileStable copper acetylacetonate-based oxidizing agents in redox (NIR photoactivated) polymerization: an opportunity for the one pot grafting from approach and an example on a 3D printed object, Computed Properties of 14284-06-1, the publication is Polymer Chemistry (2018), 9(16), 2173-2182, database is CAplus.

The use of new stable copper acetylacetonates in combination with specific bidentate ligands (e.g. 2dppba) is proposed for redox free radical polymerization (FRP) under mild reaction conditions (under air and at room temperature). These systems show high performances so that they can compete with the well-established reference redox initiating systems based on the amine/benzoylperoxide combination. Remarkably, some of our systems are also highly efficient when excited in the near IR region (NIR), demonstrating that our redox systems can also be activated by light. Using this strategy, the initial redox free radical polymerization could be converted into a redox photoactivated one. More interestingly, a stable copper methacryloyloxy-ethylacetoacetate (Cu(AAEMA)₂) bearing a reactive methacrylate function and a copper acetylacetonate moiety could be used to polymerize a first polymer layer onto which a second polymerization could be carried out. Precisely, the second polymerization was initiated by a redox process using mild reaction conditions (at room temperature and under air), different from the process used to form the underlayer. To the best of our knowledge, this re-initiation of polymerization from a pre-polymerized layer by a second polymerization technique is highly original and is of crucial industrial/academic interest as no high energy consumption/harmful wavelengths are required to reinitiate the polymerization The efficiency of this strategy is illustrated by grafting from a 3D printed object.

Polymer Chemistry published new progress about 14284-06-1. 14284-06-1 belongs to copper-catalyst, auxiliary class Copper, name is Copper(II) ethylacetoacetate, and the molecular formula is 0, Computed Properties of 14284-06-1.

Referemce:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4660968/,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Kocovsky, Pavel published the artcileTransition-metal catalysis in Michael addition of β-dicarbonyls: tuning of the reaction conditions, Recommanded Product: Copper(II) ethylacetoacetate, the publication is Tetrahedron Letters (1986), 27(41), 5015-18, database is CAplus.

Michael addition of 2-cyclohexenone to RCOCH₂CO₂Et (R = Me, EtO) in the presence of BF₃.OEt₂ and transition metal acetylacetonates gives adducts I (same R). 2-Cyclopentenone and 2-methyl-2-cyclopentenone react analogously.

Tetrahedron Letters published new progress about 14284-06-1. 14284-06-1 belongs to copper-catalyst, auxiliary class Copper, name is Copper(II) ethylacetoacetate, and the molecular formula is 0, Recommanded Product: Copper(II) ethylacetoacetate.

Referemce:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4660968/,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Ishchenko, S. S. published the artcileCatalysis by copper β-diketonates of the formation of polyurethanes based on polypropylene glycol, Category: copper-catalyst, the publication is Ukrainskii Khimicheskii Zhurnal (Russian Edition) (1985), 51(11), 1219-22, database is CAplus.

The kinetics of polymerization of MDI  [101-68-8] with polypropylene glycol (I) [25322-69-4] in the presence of CuL₂ (L = β-diketone) catalyst depended on the structure of the β-diketone ligand in the catalyst, the mol. weight of I, and the state of I in solution The polymerization rate constant decreased with increasing mol. weight of I due to a decrease in the concentration of active forms, i.e., intermol. associates of OH groups, and an increase in the nonactive forms, i.e., ether O atoms. The catalysts decreased in activity in the ligand order: dipivaloylmethane > Et acetoacetate > benzoylacetone > acetylacetone > trifluoroacetylacetone > hexafluoroacetylacetone.

Ukrainskii Khimicheskii Zhurnal (Russian Edition) published new progress about 14284-06-1. 14284-06-1 belongs to copper-catalyst, auxiliary class Copper, name is Copper(II) ethylacetoacetate, and the molecular formula is 0, Category: copper-catalyst.

Referemce:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4660968/,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”