Tag: M.W=300-350

Alonso, Miguel E. published the artcileStudies on the origin of dihydrofurans from α-diazocarbonyl compounds. Concerted 1,3-dipolar cycloaddition vs. nonsynchronous coupling in the copper chelate catalyzed reactions of α-diazodicarbonyl compounds with electron-rich olefins, Synthetic Route of 14284-06-1, the publication is Journal of Organic Chemistry (1982), 47(19), 3747-54, database is CAplus.

The Cu chelate catalyzed thermolysis of alkyl 2-diazo-3-oxobutyrate and of 3-diazo-2,4-pentanedione in the presence of vinyl ethers, to give 4-(alkoxycarbonyl)- and 4-acyl-2,3-dihydrofurans, is used to probe the mechanism of this transformation in terms of the concerted 1,3-dipolar cycloaddition of the metal-oxocarbene complex vs. the initial formation of the cyclopropane followed by 1,3-sigmatropic rearrangement to the heterocycle. Evidence is presented in favor of a third possibility, namely, that of a nonsynchronous stereospecific addition of the metal-carbene to the olefinic substrate which accounts for the formation of cyclopropanes, dihydrofurans, and products of apparent allylic C-H insertion and cyclopropane structural isomerization from a common intermediate. This mechanism is supported by a study of the addition of Et 2-diazo-3-oxobutyrate to benzo[b]furan.

Journal of Organic 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, 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”

Shmyreva, Zh. V. published the artcileEffect of transition metal diketonates on oxidation of sunflower-seed oil, Quality Control of 14284-06-1, the publication is Russian Journal of Applied Chemistry (Translation of Zhurnal Prikladnoi Khimii) (2003), 76(11), 1862-1863, database is CAplus.

Effect of transition metal (Mn, Fe, Co, Ni, Cu, Zn) diketonates on the oxidation of sunflower-seed oil with atm. oxygen was studied. Some of the complexes acted as catalysts and the others as antioxidants.

Russian Journal of Applied Chemistry (Translation of Zhurnal Prikladnoi Khimii) 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 C10H9NO, 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”

Rakhimova, T. F. published the artcileCopper β-diketonates as catalysts for the synthesis of peroxycarbamates, Recommanded Product: Copper(II) ethylacetoacetate, the publication is Zhurnal Obshchei Khimii (1980), 50(4), 774-7, database is CAplus.

NMR data and MO calculations indicated that bis(acetylacetonato)- and bis(Et acetoacetato)copper catalyze the formation of peroxycarbamate esters from isocyanates and hydroperoxides by complexation with the hydroperoxides. Features of these complexes were discussed.

Zhurnal Obshchei Khimii 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”

Kozak, N. V. published the artcileEffect of Cu bis(ethylacetoacetate) on rotational diffusion of paramagnetic probe TEMPO and thermooxidative degradation of polyurethane-PMMA semi-IPN, Application In Synthesis of 14284-06-1, the publication is Ukrainskii Khimicheskii Zhurnal (Russian Edition) (2005), 71(7-8), 122-127, database is CAplus.

Adding of copper bis(ethylacetoacetate) (CuAc) to PMMA-polyurethane semi-IPN was accompanied by the decrease in activation energy and rotational diffusion of the paramagnetic probe TEMPO. Thermooxidative degradation and structural changes of semi-IPN depend on the metal ion valency. Thermogravimetric anal. indicates slowing down of degradation of semi-IPN in the presence of CuAc at the initial stages. Increase of the amount of CuAc to 5% leads to the increased rate of degradation at >330°.

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, Application In Synthesis of 14284-06-1.

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

Khudorozhko, G. F. published the artcileX-ray electronic study of the charge state of the central atom of aluminum(III) and copper(II) β-diketonates, Application In Synthesis of 14284-06-1, the publication is Koordinatsionnaya Khimiya (1980), 6(3), 358-60, database is CAplus.

The change was studied of the charge of the central atom of β-diketonates of Al and Cu by measurement of the binding energies of the Al 2p and Cu 3p levels by the method of x-ray electron spectroscopy. The additivity was established by contributions of terminal group to the chem. shifts. There is a correlation of these shifts with the volatility of the compounds studied. The compounds studied were (R’COCHOCR”)₃Al(III) and (R’COCHOCR”)₂Cu(II), where R’ and R” are Me, CMe₃, CF₃, Ph, etc.

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, Application In Synthesis of 14284-06-1.

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

Berzate, A. published the artcileCatalytic activity of chlorides and acetylacetonates in alkoxy exchange, Formula: 0, the publication is Latvijas PSR Zinatnu Akademijas Vestis, Kimijas Serija (1975), 186-8, database is CAplus.

The catalytic activity of 19 metal chlorides MCln and 16 metal acetylacetonato complexes M(aa)n in the alkoxy exchange reaction: PhSi(OMe)3 + 3C7H15OH → 3MeOH + PhSi(OC7H15)3 are listed. The activity trend is analogous to that of catalytic activity in the Friedel-Crafts reaction and is the trend of Lewis-acid strength.

Latvijas PSR Zinatnu Akademijas Vestis, Kimijas Serija 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, Formula: 0.

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

Okushi, Tsuneo published the artcileReaction of triphenylboroxine with diethyl ethylidenemalonate in the presence of bis(ethoxycarbonylacetonato)copper(II), Safety of Copper(II) ethylacetoacetate, the publication is Nippon Kagaku Kaishi (1975), 1435-8, database is CAplus.

The reaction of triphenylboroxine with di-Et ethylidenemalonate in the presence of bis(ethoxycarbonylacetonato)copper(II) was investigated. When the reaction was carried out in pyridine, Cu powder precipitated and Cu(I) pentaborate-pyridine(1/6) crystallized From the filtrate, benzene (69.7%), biphenyl (13.9%) and 1-phenylethylmalonic acid (7.5%) were obtained. Several byproducts were also identified. Possible pathways for the formation of these products were suggested. The formation of biphenyl and 1-phenylethylmalonic acid was explained by a radical mechanism. By use of a large excess of di-Et ethylidenemalonate as solvent, 1-phenylethylmalonic acid was obtained in a 55.7% yield.

Nippon Kagaku Kaishi 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, Safety of Copper(II) ethylacetoacetate.

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

Ivanov, C. published the artcileIR spectroscopic estimates of metallotropy in solutions of copper(II) and calcium acetoacetates, Name: Copper(II) ethylacetoacetate, the publication is Izvestiya po Khimiya (1980), 13(2), 198-204, database is CAplus.

An IR study of ML₂ (M = Cu, Ca; HL = MeCOCH₂ = CO₂ Et) indicated the existence of metallotropy in CHCl₃ solutions The rate of the process under consideration was investigated and a possible mechanism of the observed phenomenon is discussed.

Izvestiya po 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, Name: Copper(II) ethylacetoacetate.

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

Perez, Yolanda published the artcileCopper-containing catalysts for solvent-free selective oxidation of benzyl alcohol, Computed Properties of 14284-06-1, the publication is Journal of Molecular Catalysis A: Chemical (2012), 45-56, database is CAplus.

Two different methods for the preparation of copper-containing catalysts have been described. Copper (II) ethylacetoacetate or copper (II) nitrate metallic precursors have been immobilized onto previously organofunctionalized MCM-41 material with N ⁴-(3-(triethoxysilyl)propyl)pyrimidine-2,4,6-triamine (DAPyPTS) compound The amino hybrid materials have been prepared by using both post-synthesis and co-condensation methods. In addition, the immobilization has been performed using organic and aqueous media. The catalysts have been characterized using X-ray diffraction (XRD), N₂ adsorption-desorption, inductively coupled plasma-at. emission spectroscopy (ICP-AES), scanning electron microscope (SEM) with energy-dispersive X-ray (EDX), elemental anal., ¹H, ¹³C and ²⁸Si MAS NMR, FT-IR and DRUV-vis spectroscopy. Copper-containing catalysts have been tested in the benzyl alc. oxidation with TBHP and H₂O₂ as oxidants and under solventless conditions. High selective (97%) to benzaldehyde was achieved using TBHP as oxidant and the copper (II) ethylacetoacetate immobilized onto organofunctionalized MCM-41 as catalyst under solventless conditions.

Journal of Molecular Catalysis A: Chemical 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”

Corain, B. published the artcileReactivity of cyanogen toward compounds containing active hydrogens at carbon. 5. Cyanoimination reaction of β-keto enolato and Schiff-base complexes of copper and nickel, Application of Copper(II) ethylacetoacetate, the publication is Inorganic Chemistry (1983), 22(19), 2744-9, database is CAplus.

Bis(β-keto enolato)copper(II) complexes and Ni(II) and Cu(II) complexes of the Schiff-base condensation products of 1,3-diketones and diamines react with cyanogen in chlorinated solvents to give cyanoimino-substituted organometallic rings. The reactions occur with high yields and display rates that are strongly affected by the central metal and by the nature of the substituents on the ligands. The new compounds were fully characterized by elemental anal., m.ps., IR and electronic spectroscopy, mass spectra, and thermal anal. I was characterized by x-ray single-crystal anal. The space group is P2₁/n, Z = 4, with a 19.863(9), b 12.184(8), c 9.739(6) Å, and β 98.4(1)°.

Inorganic 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, Application of Copper(II) ethylacetoacetate.

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