Category: copper-catalyst

Samath, S. Abdul published the artcileReactions of coordinated β-ketoesters. A new route for the synthesis of 4-substituted-3-methyl/phenyl-1-phenyl pyrazol-5-ones via a metal chelated stable intermediate, Formula: 0, the publication is Polyhedron (1993), 12(10), 1265-7, database is CAplus.

Unsubstituted and γ-substituted Cu(II) complexes of β-ketoesters on treatment with phenylhydrazine give ring-rearranged chelate intermediates, which on subsequent demetalation afford the new 4-halo/phenylamido-3-methyl/phenyl-1-Ph pyrazol-5-ones.

Polyhedron 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”

Nekhoroshkov, V. P. published the artcileEffect of the structure of β-dicarbonyl compounds of copper(II) and reaction conditions on liquid-phase oxidation of dibenzyl ether, SDS of cas: 14284-06-1, the publication is Kataliz i Katalizatory (1984), 94-8, database is CAplus.

Cu complex catalysts (I; R, R¹, R² = CF₃, H, CF₃; Me, H, CF₃; Me, H, Me; Me, H, Me₃C; Ph, H, Ph; Me₃C, H, Me₃C; CF₃, Ph, OEt; etc.) were tested in the oxidation of (PhCH₂)₂O. Linear relations were found between the rate of product formation and the charge on Cu. The selectivity for hydroperoxide formation increased with the charge on Cu, the selectivity for BzH showed the opposite trend, and the selectivity for BzOH was not appreciably affected by the charge on Cu. The effects of concentration, temperature, and space velocity were also examined

Kataliz i Katalizatory 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”

Nizel’skii, Yu. N. published the artcileProton NMR study of the complexing of cobalt(II) and copper(II) β-diketonates with poly(ethylene glycols) and monoethyl ether of ethylene glycol, Name: Copper(II) ethylacetoacetate, the publication is Teoreticheskaya i Eksperimental’naya Khimiya (1983), 19(5), 636-40, database is CAplus.

The complexation of CuL₂ (HL = Et acetoacetate) and M(acac)₂ (M = Be, Co; Hacac = acetylacetone) with poly(ethylene glycol) (mol.weight = 400-4000), ethylene glycol monoethyl ether, and diethylene glycol di-Et ether was studied by ¹H NMR spectra. The interaction of the glycols to the metals is through the hydroxy groups. The ether O are not involved in coordination.

Teoreticheskaya i Eksperimental’naya 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”

Sato, Tsuneyuki published the artcileMetal-containing initiator systems. 30. Vinyl polymerization initiated with bis(ethyl acetoacetato)copper(II) and maleimide, Computed Properties of 14284-06-1, the publication is Journal of Macromolecular Science, Chemistry (1981), A16(5), 1017-32, database is CAplus.

Some electron-accepting compounds such as maleimide (I) [541-59-3], maleic anhydride (II) [108-31-6], and tetracyanoquinodimethane [1518-16-7] showed pronounced accelerating effects on vinyl polymerization initiated with metal chelates. The polymerization of Me methacrylate (III) [80-62-6] initiated with bis(Et acetoacetato)copper(II) (IV) [14284-06-1] and I was studied kinetically in C₆H₆. The overall activation energy of the polymerization was 11.5 kcal/mol. This value was much lower than that (17.6 kcal/mol) for the polymerization of III with IV alone. The polymerization rate (R_p) was expressed as R_p = k[I]^1/2[IV]^1/2[III]. The first-order dependence of R_p on the monomer concentration indicated that the monomer had no participation in the initiation step, in contrast with polymerization in the absence of I (where a monomer concentration dependence of 1.4th order was observed). Electron spectroscopic studies revealed that a I–IV complex was formed. The ligand radical, an acetylcarboethoxymethyl radical, was trapped by 2-methyl-2-nitrosopropane in the reactions of IV with I and with II in benzene. From these results the mechanism of the initiation of polymerization was discussed.

Journal of Macromolecular Science, 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”

Kozak, N. V. published the artcileEffect of Zn²⁺, Cu²⁺, and Ni²⁺ ions on the structure of crosslinked segmented polyurethanes, Recommanded Product: Copper(II) ethylacetoacetate, the publication is Vysokomolekulyarnye Soedineniya, Seriya A i Seriya B (2000), 42(12), 2104-2110, database is CAplus.

Segmented PU crosslinked with Ni²⁺, Cu²⁺, and Zn²⁺ ions were synthesized. The effect of these ions on the structure of the synthesized polymers was studied by EPR spectroscopy, with 2,2,6,6-tetramethyl- 1-piperidinyloxy and copper Et acetoacetate used as spin probes. The different effect of these ions is connected to differences in their electronic structure. This effect not only governs formation of a complex crosslink of a certain symmetry in PU, but also characterizes the capability of metal ions for addnl. complexation with the functional groups of a polymer as follows from variations in the correlation time of a nitroxyl radical and in the electron spin characteristics of copper Et acetoacetate.

Vysokomolekulyarnye Soedineniya, Seriya A i Seriya B 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”

Lipatov, Yu. S. published the artcileEffect of metal chelates on phase separation in semi-interpenetrating polymer networks based on crosslinked polyurethane and linear poly(methyl methacrylate), Recommanded Product: Copper(II) ethylacetoacetate, the publication is Dopovidi Natsional’noi Akademii Nauk Ukraini (2005), 134-141, database is CAplus.

The effect of chelates of iron, copper, and chromium on the interface region and the phase separation in semi-interpenetrating polymer networks (SIPN) based on crosslinked polyurethane and linear PMMA was investigated. The degree of phase separation depends on the presence of chelates. Slowing of the phase separation in SIPN in the presence of β-diketonates of iron and copper was observed

Dopovidi Natsional’noi Akademii Nauk Ukraini 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”

Nizel’s’kii, Yu. M. published the artcileLinear and crosslinked polyurethanes containing nanostructuring coordination centers, Safety of Copper(II) ethylacetoacetate, the publication is Nanosistemi, Nanomateriali, Nanotekhnologii (2007), 5(2), 435-443, database is CAplus.

The in situ polymer-immobilized mono-, bi- and polyheteronuclear metal complexes are obtained in homogeneous polymers based on linear and cross-linked polyurethanes. Anal. of both EPR-spectra shape and copper-ion electron-spin parameters for isolated and immobilized mono- and polyheteronuclear metal compounds confirms a complexation between the modifier and electron-donating groups in linear and cross-linked polyurethanes. These complexes form the coordination linkages of macrochains in a polymer matrix. As revealed, the immobilization of monoionic copper ethylacetoacetate does not disturb tetragonal symmetry (D_2h or D_4h) of its chelate node. On the contrary, introduction of the polyheteronuclear metal complex into the polymer matrix is accompanied with essential distortion of the initial complex EPR spectra. Obtained systems are described as bottom-up metal-containing nanosystems, which include nanoscale structures of both organic nature (self-similar microheterogeneities typical for segmented polyurethanes) and metal-containing co-ordination junction points within the microphase or at the boundary.

Nanosistemi, Nanomateriali, Nanotekhnologii 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”

Lipatov, Yurii S. published the artcileUV-induced crosslinking of poly(vinyloxymethylmethacrylamide) films containing transition metal β-diketonates, Category: copper-catalyst, the publication is Mendeleev Communications (1996), 148-150, database is CAplus.

The photoinduced crosslinking of solid poly(vinyloxymethylmethacrylamide) containing transition metal chelate catalysts is accompanied by the formation of long-lived free radicals which can be detected directly up to 300 K. The only source of primary free radicals was the chelate mol. photodegradation The long-lived free radicals detected in the polymer matrix at room temperature may stimulate the creation of a new approach in the study of radical processes in solids.

Mendeleev Communications 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”

Rakhimova, T. F. published the artcileCatalysis of the reaction of tetrahydrofuran hydroperoxides with hexamethylene diisocyanate by copper(II) β-diketonates, Synthetic Route of 14284-06-1, the publication is Izvestiya Vysshikh Uchebnykh Zavedenii, Khimiya i Khimicheskaya Tekhnologiya (1986), 29(3), 38-41, database is CAplus.

Diperoxydicarbamates I (R = H, Me) were prepared by reaction of hydroperoxides II with OCN(CH₂)₆NCO in the presence of bis(acetylacetonato)copper or bis(Et acetoacetato)copper. MO calculations and NMR results indicated that II formed complexes with the Cu coordination compounds

Izvestiya Vysshikh Uchebnykh Zavedenii, Khimiya i Khimicheskaya Tekhnologiya 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”

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”