Month: February 2023

Copper-catalyzed N-H insertion reactions from sulfoxonium ylides was written by Furniel, Lucas G.;Burtoloso, Antonio C. B.. And the article was included in Tetrahedron in 2020.Synthetic Route of C10H2CuF12O4 This article mentions the following:

The first use of copper(II) as an efficient catalyst for N-H insertion reactions between anilines and α-carbonyl sulfoxonium ylides is described. Products, 39 arylglycine derivatives, were obtained in yields up to 97% employing a simple and fast exptl. procedure. In the experiment, the researchers used many compounds, for example, copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4Synthetic Route 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, low toxicity and inexpensive. It is clear from the impact copper catalysis has had on organic synthesis that copper should be considered a first line catalyst for many organic reactions.Synthetic Route of C10H2CuF12O4

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

Molybdenum Imido Alkylidene Complexes Containing Biphen Ligands that Have Silyl Groups Attached through the 6 and 6′ Methyl Group Carbon Atoms was written by Hultzsch, Kai C.;Bonitatebus, Peter J. Jr.;Jernelius, Jesper;Schrock, Richard R.;Hoveyda, Amir H.. And the article was included in Organometallics in 2001.Electric Literature of C24H34O2 This article mentions the following:

Two new biphenolate ligands were prepared starting from 3,3′-di-tert-butyl-5,5′,6,6′-tetramethyl-2,2′-dimethoxy-1,1′-biphenyl via deprotonation of the 6 and 6′ Me group with KO-t-Bu/n-BuLi, reaction with dichlorodimethylsilane or chlorotrimethylsilane, and deprotection with boron tribromide. Molybdenum imido alkylidene complexes were prepared by treating Mo(NAr)(CHCMe₂Ph)(OTf)₂(DME) with the dipotassium salt of each biphenolate. X-ray crystallog. studies of syn-Mo(NAr)(CHCMe₂Ph)[(rac)-Me₂SiBiphen] and syn-Mo(NAr)(CHCMe₂Ph)[(rac)-TMS₂Biphen] revealed a significantly different geometry of the biphenolate ligands compared to previously structurally characterized four-coordinate biphenolate molybdenum imido alkylidene complexes. The enantiopure complexes were shown to catalyze asym. olefin metathesis with an enantioselectivity comparable to that of Mo(NAr)(CHCMe₂Ph)[(S)-Biphen]. In the experiment, the researchers used many compounds, for example, (S)-3,3′-Di-tert-butyl-5,5′,6,6′-tetramethylbiphenyl-2,2′-diol (cas: 205927-03-3Electric Literature of C24H34O2).

(S)-3,3′-Di-tert-butyl-5,5′,6,6′-tetramethylbiphenyl-2,2′-diol (cas: 205927-03-3) 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. Electric Literature of C24H34O2

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

Cu-Ln compounds based on nitronyl nitroxide radicals: synthesis, structure, and magnetic and fluorescence properties was written by Yang, Meng;Sun, Juan;Guo, Jianni;Sun, Guifang;Li, Licun. And the article was included in CrystEngComm in 2016.Computed Properties of C10H2CuF12O4 This article mentions the following:

Three series of nitronyl nitroxide radical 3d-4f compounds, namely, [Ln(hfac)₃Cu(hfac)₂NIT-5Br-3Py]_n (Ln^III = La (1), Pr (2)), [Ln(hfac)₃Cu(hfac)₂NIT-5Br-3Py] (Ln^III = Gd (3), Tb (4), Dy (5)) and [Ln(hfac)₃Cu(hfac)₂(NIT-5Br-3Py)₂]_n (Ln^III = Gd (6), Tb (7), Dy (8); NIT-5Br-3Py = 2-(5-bromo-3-pyridyl)-4,4,5,5-tetramethyl-imidazoline-1-oxyl-3-oxide; hfac = hexafluoroacetylacetonate) have been successfully obtained. Single crystal x-ray crystallog. anal. reveals that complexes 1 and 2 consist of 1D chains built up by Ln(hfac)₃ units bridged by the radical ligands through their NO moieties and the addnl. Cu ions are coordinated to the nitrogen atoms of the radicals. Complexes 3–5 are rare hetero-binuclear Cu-Ln compounds bridged by the nitronyl nitroxide radicals while complexes 6–8 possess one-dimensional chain structures with a repeating [Cu-Rad-Ln-Rad] sequence. DC magnetic studies show ferromagnetic interaction between the Ln^III ion and the coordinated NO group in compounds 3–8. Tb-Cu derivatives (complexes 4 and 7) display frequency dependent ac magnetic susceptibilities, indicating slow magnetic relaxation behavior. The room-temperature photoluminescence spectra of complexes 4 and 7 exhibit strong characteristic emissions in the visible region. 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 transition metal-catalyzed chemical transformation of organic electrophiles and organometallic reagents has turned up as an exceedingly robust synthetic tool. 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. Computed Properties of C10H2CuF12O4

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

Acid-Catalyzed Decomposition of O-Silylated α-Diazo-β-hydroxy Esters: Access to Mixed Monosilyl Acetals was written by Rouzier, Florian;Montiege, Ophelie;Lhoste, Jerome;Gaulon-Nourry, Catherine;Castanet, Anne-Sophie;Chany, Anne-Caroline. And the article was included in Journal of Organic Chemistry in 2022.Synthetic Route of C2CuF6O6S2 This article mentions the following:

Acid-catalyzed decomposition of diazocarbonyl compounds triggers a wide range of transformations leading to synthetically useful building blocks with high diversity. In this field, the chem. of α-diazo-β-hydroxy ester substrates is largely dominated by migration processes. The authors describe herein a new approach to original mixed monosilyl acetals from O-protected α-diazo-β-hydroxy-β-aryl esters and alcs., catalyzed by trimethylsilyl trifluoromethanesulfonate (TMSOTf). The ratio between these original mixed acetals, the sym. acetals, and the migration products fluctuates depending on the catalyst, the nature of the alcs., and the substituent on the aromatic ring. Fifty-six examples are reported herein with yields up to 71% and diastereoselectivity up to 6:1. Such mixed monosilyl acetals constitute a synthetic equivalent of α-substituted β-oxoesters with high potential for further transformations. In the experiment, the researchers used many compounds, for example, Copper(II) trifluoromethanesulfonate (cas: 34946-82-2Synthetic Route of C2CuF6O6S2).

Copper(II) trifluoromethanesulfonate (cas: 34946-82-2) belongs to copper catalysts. The evolution of transition metal catalysts has attained a stage of civilization that authorizes for an extensive scope of chemical bonds formation partners to be combined efficiently. Due to these characteristics, copper nanoparticles have generated a great deal of interest especially in the field of catalysis. Synthetic Route of C2CuF6O6S2

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

Synthesis of Molybdenum Imido Alkylidene Complexes That Contain 3,3′-Dialkyl-5,5′,6,6′-tetramethyl-1,1′-biphenyl-2,2′-diolates (Alkyl = t-Bu, Adamantyl). Catalysts for Enantioselective Olefin Metathesis Reactions was written by Alexander, John B.;Schrock, Richard R.;Davis, William M.;Hultzsch, Kai C.;Hoveyda, Amir H.;Houser, Jeffrey H.. And the article was included in Organometallics in 2000.Category: copper-catalyst This article mentions the following:

Two 3,3′-dialkyl-5,5′,6,6′-tetramethyl-1,1′-biphenyl-2,2′-diols (alkyl = t-Bu, 1-adamantyl) were prepared in two steps and resolved as the menthol phosphate derivative Addition of the dipotassium salt of each biphenolate to various Mo(N-Aryl)(CHR)(OTf)₂(DME) complexes produced racemic and enantiopure compounds Mo(N-aryl)(CHR)(biphenolate). X-ray crystallog. studies of syn-Mo(N-2,6-i-Pr₂C₆H₃)(CHCMe₂Ph)[(S)-Biphen] and syn-Mo(N-2-CF₃C₆H₄)(CHCMe₃)[(S)-Biad](pyridine) proved the absolute stereochem. of the biphenolate ligands. Neophylidene and neopentylidene complexes have predominantly the syn conformation in solution The [syn]/[anti] equilibrium constant for Mo(N-Aryl)(CHR)[Biphen] complexes increased in magnitude with decreasing size of the arylimido ligand, and decreased upon reducing the steric bulk of the alkylidene substituent. The rates of exchange of syn and anti isomers, as determined by single-parameter line shape anal. and by spin saturation transfer, are on the order of ∼1 s^-1 at 22°. In the experiment, the researchers used many compounds, for example, (S)-3,3′-Di-tert-butyl-5,5′,6,6′-tetramethylbiphenyl-2,2′-diol (cas: 205927-03-3Category: copper-catalyst).

(S)-3,3′-Di-tert-butyl-5,5′,6,6′-tetramethylbiphenyl-2,2′-diol (cas: 205927-03-3) 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. Category: copper-catalyst

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

Microwave-assisted copper-catalyzed stereoselective ring expansion of three-membered heterocycles with α-diazo-β-dicarbonyl compounds was written by Li, Siqi;Chen, Xingpeng;Xu, Jiaxi. And the article was included in Tetrahedron in 2018.Recommanded Product: 14781-45-4 This article mentions the following:

Microwave-assisted copper-catalyzed stereoselective ring expansions of three-membered heterocycles with α-diazo-β-dicarbonyl compounds were investigated. Reaction of mono-substituted and cis-2-R¹-3-R²-substituted thiiranes [R¹ = H, R² = n-Bu, n-hexyl, PhCH₂CH₂; R¹R² = (CH₂)₄] with α-diazo-β-dicarbonyl compounds R³C(O)C(:N₂)C(O)R⁴ [R³ = Me, R⁴ = MeO, EtO; R³R⁴ = (CH₂)₃, CH₂CMe₂CH₂] generated the corresponding 3-acyl-5,6-dihydro-1,4-oxathiines and trans-3-acyl-5,6-dihydro-1,4-oxathiines I with high stereospecificity through an intramol. SN2 process. In the presence of copper(II) hexafluoroacetylacetonate, mono-substituted and cis-2-R⁵-3-R⁶-substituted oxiranes [R⁵ = H, R⁶ = Ph, PhCH₂, PhCH₂CH₂, PhOCH₂, etc.; R⁵R⁶ = (CH₂)₄, (CH₂)₆] and α-diazo-β-dicarbonyls R⁷C(O)C(N₂)C(O)R⁸ (R⁷ = Me, R⁸ = Me, MeO, EtO, Ph; R⁷ = Ph, R⁸ = EtO) gave rise to 2-acyl-5,6-dihydro-1,4-dioxines and cis-3-acyl-5,6-dihydro-1,4-dioxines II stereoselectively via an intimate ion-pair mechanism. The current method provides a direct and simple strategy in efficient preparation of 3-acyl-5,6-dihydro-1,4-oxathiines and 2-acyl-5,6-dihydro-1,4-dioxines, which are important agents in medicinal and agricultural chem., from readily available thiiranes and oxiranes, resp. In the experiment, the researchers used many compounds, for example, copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4Recommanded Product: 14781-45-4).

copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4) belongs to copper catalysts. The evolution of transition metal catalysts has attained a stage of civilization that authorizes for an extensive scope of chemical bonds formation partners to be combined efficiently. Copper nanoparticles can catalyze the Ullmann coupling reaction in a wide range of applications.Recommanded Product: 14781-45-4

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

Thermal atomic layer etching of copper by sequential steps involving oxidation and exposure to hexafluoroacetylacetone was written by Mohimi, Elham;Chu, Xiaoqing I.;Trinh, Brian B.;Babar, Shaista;Girolami, Gregory S.;Abelson, John R.. And the article was included in ECS Journal of Solid State Science and Technology in 2018.Category: copper-catalyst This article mentions the following:

We describe an at. layer etching (ALE) method for copper that involves cyclic exposure to an oxidant and hexafluoroacetylacetone (Hhfac) at 275°C. The process does not attack dielecs. such as SiO2 or SiNx, and the surface reactions are kinetically self-limiting to afford a precise etch depth that is spatially uniform. Exposure of a copper surface to mol. oxygen, O2, a weak oxidant, forms a ∼0.3 nm thick layer of Cu2O, which is removed in a subsequent step by exposure to Hhfac. The etch reaction involves disproportionation of Cu(hfac) intermediates, such that ∼0.09 nm copper is removed per cycle. Exposure of copper to ozone, a stronger oxidant, affords ∼15 nm of CuO; when this oxidized surface is exposed to Hhfac, 8.4 nm of copper is removed per cycle. The etch products, Cu(hfac)2 and H2O, are efficiently pumped away; H2O, a poor oxidant, does not attack the bare Cu surface. The roughness of the copper surface increases slowly over successive etch cycles. Thermochem. and bulk etching data indicate that this approach should work for a variety of other metals. In the experiment, the researchers used many compounds, for example, copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4Category: copper-catalyst).

copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4) belongs to copper catalysts. The evolution of transition metal catalysts has attained a stage of civilization that authorizes for an extensive scope of chemical bonds formation partners to be combined efficiently. Copper nanoparticles can catalyze the Ullmann coupling reaction in a wide range of applications.Category: copper-catalyst

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

Nanometer-thick copper films grown by thermal atomic layer deposition was written by Zhong, Zhenyu;Wang, Xiuqin;Ding, Jianning;Yuan, Ningyi. And the article was included in Thin Solid Films in 2015.Related Products of 14781-45-4 This article mentions the following:

Because of the superior properties of copper, it has been of great interest as a conducting material to replace aluminum in device manufacturing In this study, we investigated the influence of substrate temperature, film thickness, and rapid thermal annealing (RTA) on the deposition of Cu films of thickness less than 10 nm. Compared to thicker films, the elec. properties of nanometer-thick films were found to be very sensitive to the deposition temperature Further, we determined the optimal deposition temperature to obtain low-resistivity nanometer-thick Cu films. The Cu films were deposited with island-type growth, and the interconnection between grains plays a major role in the resistivity of the films. We also determined the critical thickness at which Cu films exhibit continuous growth as 8 nm. After RTA, the film color darkened, electron scattering became weak, and the resistivity reduced more than 20% with annealing at 300-350 °C, because of the growth of Cu grains. The results of this study indicate that thermal ALD can be used in conjunction with RTA to produce low-resistivity Cu thin films, the thickness, uniformity, and conformality of which can be easily controlled. 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. Copper catalyst has received great attention owing to the low toxicity and low cost. Copper nanoparticles can also catalyze the coupling reaction of phenols, thiols, xanthogenates, nitrogen-containing nucleophiles, selenium ruthenium nucleophiles and the like.Related Products of 14781-45-4

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

Divergent reactivity of α-azidochalcones with metal β-diketonates: tunable synthesis of substituted pyrroles and indoles was written by Rajaguru, Kandasamy;Mariappan, Arumugam;Muthusubramanian, Shanmugam;Bhuvanesh, Nattamai. And the article was included in Organic Chemistry Frontiers in 2017.Electric Literature of C10H2CuF12O4 This article mentions the following:

A divergent reactivity of α-azidochalcones with metal β-diketonates for the synthesis of substituted pyrroles and indoles was described. Metal β-diketonates were applied as bifunctional reactive partners. With a copper complex, the synthesis of substituted pyrroles in micellar media via 2H-azirine intermediates was achieved under mild conditions, while with Fe(acac)₂ as a catalyst, the reaction proceeded smoothly to yield indoles regioselectively. In the experiment, the researchers used many compounds, for example, copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4Electric Literature of C10H2CuF12O4).

copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4) belongs to copper catalysts. Copper has continued to be one of the most utilized and important transition metal catalysts in synthetic organic chemistry. Copper nanoparticles can also catalyze the coupling reaction of phenols, thiols, xanthogenates, nitrogen-containing nucleophiles, selenium ruthenium nucleophiles and the like.Electric Literature of C10H2CuF12O4

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

Synthesis, crystal structures and magnetic properties of a P-stereogenic ortho-(4-amino-tempo)phosphinic amide radical and its Cu^II complex was written by Navarro, Yolanda;Guedes, Guilherme P.;del Aguila-Sanchez, Miguel A.;Iglesias, Maria Jose;Lloret, Francisco;Lopez-Ortiz, Fernando. And the article was included in Dalton Transactions in 2021.Formula: C10H2CuF12O4 This article mentions the following:

The synthesis of phosphinic amides containing one 4-amino-TEMPO substituent at the ortho position was achieved through copper(I) catalyzed cross-coupling reactions of ortho-iodophosphinic amides with 4-amino-TEMPO. The method was extended to the preparation of the first example of a P-stereogenic ortho-(4-amino-tempo)phosphinic amide radical 10. The reaction of 10 with Cu(hfac)₂ afforded the P-stereogenic Cu^II complex 19. The crystal structure of both chiral compounds is reported. The mol. structure of 10 consists of a supramol. zigzag chain formed by intermol. hydrogen bonds between the NH group of the phosphinic amide moiety and the nitroxide oxygen atom. In complex 19, the ligand acts as a bridge between two Cu^II ions coordinated to the oxygen atoms of the P=O and N-O· groups giving a polymeric helicate chain in which the metal ions exist in a distorted octahedral geometry. The magnetic behavior of ligand 10 was characterized by very weak intermol. antiferromagnetic interactions, whereas ferro- and anti-ferromagnetic interactions are present in complex 19. 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 evolution of transition metal catalysts has attained a stage of civilization that authorizes for an extensive scope of chemical bonds formation partners to be combined efficiently. It is clear from the impact copper catalysis has had on organic synthesis that copper should be considered a first line catalyst for many organic reactions.Formula: C10H2CuF12O4

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