copper related catalyst

Khlebnikov, B. M. published the artcileMechanism of initiation of oxidative polycondensation of phenols, Application of Copper(II) ethylacetoacetate, the publication is Vysokomolekulyarnye Soedineniya, Seriya A (1976), 18(3), 528-32, database is CAplus.

Oxidative polycondensation of 2,6-dimethylphenol (I) [576-26-1] occurred within the catalytic complex derived from CuCl [7758-89-6] and capable of of coordinating O [7782-44-7] and I. The mechanism of the reaction, postulating the presence of an intermediate binuclear complex, was established by investigating the effect of composition and donor-acceptor properties of copper complexes of acetylacetone, acetoacetic ester, and salicylaldehyde on their catalytic activities.

Vysokomolekulyarnye Soedineniya, Seriya A 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”

Prabhananda, B. S. published the artcileEMR line-width analysis of CHCl₃ solution of bis(ethylacetoacetato)copper(II) complex, Application In Synthesis of 14284-06-1, the publication is Polyhedron (1994), 13(3), 469-74, database is CAplus.

Two copper(II) complexes in equilibrium contribute to the solution EMR (EPR) spectrum of bis(ethylacetoacetato)copper(II). EMR line-widths were analyzed to obtain better insight into the nature of these 2 paramagnetic species. The anal. shows that the EMR anisotropy and rotational correlation times of the 2 paramagnetic species are similar in magnitude. The EMR anisotropy determined from line-width studies is compared with that obtained from a frozen solution EMR spectrum.

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, 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”

Chikira, Makoto published the artcileElectron spin resonance study of the formation of two dimeric species in bis(1-phenylbutane-1,3-dionato)- and bis(ethylacetoacetato)-copper(II), Recommanded Product: Copper(II) ethylacetoacetate, the publication is Journal of the Chemical Society, Dalton Transactions: Inorganic Chemistry (1972-1999) (1977), 2344-8, database is CAplus.

ESR spectra of the title complexes in PhMe at 1.57-4.2 K and 77 K and 0-5000 G showed that the 2 form dimers. The spin-exchange interaction energies of these dimers were determined The dimeric structures were examined by computer simulation of the dimer ESR spectra and discussed in relation to the mol. packing of planar metal complexes in crystals and to the polymorphism of many complexes.

Journal of the Chemical Society, Dalton Transactions: Inorganic Chemistry (1972-1999) 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”

Wakeshima, Ikuko published the artcileSynthesis of β-diketone and β-keto ester complexes of yttrium(III), barium(II) and copper(II), COA of Formula: 0, the publication is Nippon Kagaku Kaishi (1992), 619-26, database is CAplus.

Synthesis of highly pure acetylacetone (Hacac), dipivaloylmethane (Hdpm), and Et acetoacetate (Hetac) chelates of Y(III), Ba(II), and Cu(II) was investigated. The chelates were synthesized by the reaction of the ligands with anhydrous YCl₃ (in the presence of amine), Ba metal, or anhydrous Cu(OAc)₂ using anhydrous solvents under dry atm. Anhydrous Y chelates were synthesized by using Et₃N as dehydrochlorinating agent. High purity of metal chelates (Y, Ba, Cu) of Hdpm and Cu chelates of Hacac and Hetac isolated in this work was confirmed by IR and ¹H NMR spectra in addition to elemental anal. Association and relative hydrolyzability of metal chelates are discussed according to the results of the ¹H NMR, IR, and mass spectral measurement, the solubility, and the observation during the experiment

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 C8H11NO, COA of Formula: 0.

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

Clark, Peter R. published the artcileCopper-catalysed C-H functionalisation gives access to 2-aminobenzimidazoles, Category: copper-catalyst, the publication is Organic & Biomolecular Chemistry (2019), 17(34), 7943-7955, database is CAplus and MEDLINE.

The development, optimization and exemplification of a copper-catalyzed C-H functionalization to form pharmaceutically relevant 2-aminobenzimidazoles from aryl-guanidines. High throughput screening was used as a tool to identify a catalytically active copper source, DoE was used for reaction optimization and a range of aryl-guanidines were prepared and exposed to the optimum conditions to afford a range of 2-aminobenzimidazoles in moderate to good yields. The methodol. was applied to the synthesis of Emedastine, a marketed anti-histamine pharmaceutical compound, with the key cyclization step performed on a gram-scale.

Organic & Biomolecular 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, Category: copper-catalyst.

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

Wang, Zi-Lu published the artcileSynthesis of Structurally Diverse Allylsilanes via Copper-Catalyzed Regiodivergent Hydrosilylation of 1,3-Dienes, Quality Control of 14284-06-1, the publication is Organic Letters (2021), 23(12), 4736-4742, database is CAplus and MEDLINE.

Unprecedented copper-catalyzed regiodivergent hydrosilylation reactions of substituted 1,3-dienes with hydrosilanes have been developed. The 1,2- and 1,4-hydrosilylations of 1-(hetero)aryl-substituted 1,3-dienes were highly selectively controlled via variation of the catalytic systems. Meanwhile, the 1,4-hydrosilylation reaction of 2-aryl-substituted 1,3-dienes with diphenylsilane was also successfully realized for the first time. These methods provide convenient and efficient approaches for the synthesis of structurally diverse allylsilanes.

Organic 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 C7H6Cl2, 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”

Kijima, Ichiro published the artcileReaction of tin(II) chloride with bis(β-diketonato)copper complexes, Computed Properties of 14284-06-1, the publication is Nippon Kagaku Kaishi (1987), 171-3, database is CAplus.

SnCl₂ reacts with [Cu(acac)₂] (Hacac = acetylacetone) in a 2:1 molar ratio to give an oxidative addition product [SnCl₂(acac)₂] and a partial replaced product [SnCl(acac)]. Similar results were also noted in the reaction between SnCl₂ and [Cu(bdm)₂] (Hdbm = dibenzoylmethane). However, only the corresponding oxidative addition product, [SnCl₂(etac)₂], was isolated from the reaction of SnCl₂ with [Cu(etac)₂] (Hetac = Et acetoacetate) under the same reaction conditions. The equimolar reaction of SnCl₂ with [Cu(acac)₂] afforded the oxidative addition product and [Sn(acac)₂], together with the formation of a trace amount of [SnCl(acac)] as the reaction products. The mechanism for the formation of these products is discussed.

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, 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”

Matkovic, Marija published the artcileSynthesis of novel adamantyl and homoadamantyl-substituted β-hydroxybutyric acids, Synthetic Route of 14284-06-1, the publication is Molecular Diversity (2013), 17(4), 817-826, database is CAplus and MEDLINE.

Several new adamantyl and homoadamantyl-substituted β;-hydroxybutyric acids, 2-[2-(1-adamantyl)ethyl]-3-hydroxybutyric acid , 2-(3-homoadamantyl)-3-hydroxybutyric acid and 2-(1-homoadamantyl)-3-hydroxybutyric acid , analogs of the 2-(1-adamantyl)-3-hydroxybutyric acid, have been prepared as mixtures of diastereoisomers using selective reduction of corresponding β-keto esters or aldol condensation of the corresponding carboxylic acid and acetaldehyde. The rearrangement of adamantylmethyl and 3-homoadamantyl groups provided entry to both 3-homoadamantyl and 1-homoadamantyl-substituted hydroxy acids resp, relative configurations of diastereoisomers have been determined by NMR spectroscopy comparing the values of coupling constants Adamantyl-substituted β-hydroxybutyric acid has also been prepared in enantiomerically pure form by Evan’s asym. synthesis and the absolute configuration has been determined by X-ray crystallog. Contrary to the long-chain acid, the attempt to prepare short-chain hydroxy acids by the same method failed indicating pronounced sensitivity of the used method to the vicinity of the bulky cage group.

Molecular Diversity 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”

Nizel’skii, Yu. N. published the artcileEffect of the structure of oligomeric glycols on their ability to form complexes with β-diketone complexes of copper, Category: copper-catalyst, the publication is Ukrainskii Khimicheskii Zhurnal (Russian Edition) (1984), 50(5), 535-9, database is CAplus.

Stability constants for Cu(eacac)₂ (eacac = ethylacetoacetate) complexes with polyoxyethylene glycols, polyoxypropylene glycols, or polyoxytetramethylene glycols were determined spectrophotometrically in PhCl solution at 288-333 K. Thermodn. parameters for complexation (ΔH, ΔS, ΔG) were calculated The oligomeric glycol occupies 1 coordination site (the 5th position) on Cu(eacac)₂ complexes. The molar extinction coefficients are independent of the degree of association of the oligomeric glycols.

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”

Nizel’skii, Yu. N. published the artcileComplex formation of copper ethylacetoacetate with poly(hydroxyethylene glycol), SDS of cas: 14284-06-1, the publication is Teoreticheskaya i Eksperimental’naya Khimiya (1982), 18(5), 583-90, database is CAplus.

Complexation of CuL₂ (HL = Et acetoacetate) with polyethylene glycol (mol. weight ∼300), diethylene glycol di-Et ether (I) and ethylene glycol mono-Et ether (II) was studied spectrophotometrically at 283-333 K. Associates with I and II were also characterized by determining IR spectra. Thermodn. parameters were calculated for 1:1 CuL₂:glycol complex formation. More stable complexes are formed with OH groups than with ether O. These complexes can serve as models for metal diketonate complex catalysts for formation of urethane polymers.

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, 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”