Day: February 23, 2023

Cu-Catalyzed Intermolecular γ-Site C-H Amination of Cyclohexenone Derivatives: The Benefit of Bifunctional Ligands was written by Zhao, Xin;Yang, Fang;Zou, Shao-Yu;Zhou, Qian-Qian;Chen, Zi-Sheng;Ji, Kegong. And the article was included in ACS Catalysis in 2022.Recommanded Product: 34946-82-2 This article mentions the following:

Utilizing 1,10-phenanthroline-type bifunctional ligands, an efficient Cu-catalyzed intermol. site-selective remote C-H amination using cyclohexenone derivatives and anilines was realized. The amide group installed on the bifunctional ligand played a key role in stabilizing the N-centered radical generated in-situ to realize C-N-directed formation. Meanwhile, a useful catalytic system for site-selective intermol. remote γ-C-H amination to p-aminophenols and γ-aminated enones was established. This economical and practical approach using oxygen as the terminal oxidant was mild and environmentally friendly. In the experiment, the researchers used many compounds, for example, Copper(II) trifluoromethanesulfonate (cas: 34946-82-2Recommanded Product: 34946-82-2).

Copper(II) trifluoromethanesulfonate (cas: 34946-82-2) belongs to copper catalysts. The applications of Copper-based nanoparticles have received great attention due to the earth-abundant, inexpensive and low toxicity. 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. Recommanded Product: 34946-82-2

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

Coordination Chemistry of 2,2′-Bipyridyl- and 2,2′:6′,2”-Terpyridyl-Substituted BEDT-TTFs: Formation of a Supramolecular Capsule Motif by the Iron(II) Tris Complex of 2,2′-Bipyridine-4-thiomethyl-BEDT-TTF was written by Wang, Qiang;Martin, Lee;Blake, Alexander J.;Day, Peter;Akutsu, Hiroki;Wallis, John D.. And the article was included in Inorganic Chemistry in 2016.Recommanded Product: 14781-45-4 This article mentions the following:

Mols. of tris(2,2′-bipyridine-4-thiomethyl-BEDT-TTF)iron(II) (BEDT-TTF = bis(ethylenedithio)tetrathiafulvalene) assemble in pairs to form a novel supramol. capsular structure in the solid state. Three BEDT-TTF residues from one complex lie in the three grooves between coordinated bipyridines of the other complex, and vice versa, to form a capsule with 3-fold rotational symmetry and an internal volume of ∼160 ų. Further aspects of the coordination chem. of this ligand, its 6-substituted isomer, and the 2,2′:6’2”-terpyridyl-4′-thiomethyl-BEDT-TTF analog are described, [M(Lⁿ)₃](PF₆)₂ and [M(L²)(hfac)₂] , where M = Zn, Mn, Fe, Co, Ni, or Cu, Lⁿ = bipyridines terpyridine substituted tetrathiafulvalenes, and hfac = hexafluoroacetylacetonato. 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. Copper catalyst has received great attention owing to the low toxicity and low cost. 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. Recommanded Product: 14781-45-4

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

Construction of substituted pyrazolo[4,3-c]quinolines via [5+1] cyclization of pyrazole-arylamines with alcohols/amines in one pot was written by Tang, Dong;Mu, Yangxiu;Iqbal, Zafar;He, Lili;Jiang, Rui;Hou, Jing;Yang, Zhixiang;Yang, Minghua. And the article was included in Journal of Heterocyclic Chemistry in 2022.Quality Control of Copper(II) trifluoromethanesulfonate This article mentions the following:

An efficient protocol had been developed for the synthesis of pyrazolo[4,3-c]quinoline derivatives I [R¹ = Me, Ph, 3-pyridyl, etc.; R² = Ph, 4-MeC₆H₄, 4-ClC₆H₄, 4-BrC₆H₄, 4-NCC₆H₄; R³ = Ph, 1-naphthyl, 2-thienyl, etc.], by reacting (1H-pyrazol-5-yl)anilines and readily available alcs./amines. A wide range of substrates with diverse functional groups were smoothly converted to the corresponding products in moderate to good yields, under optimal reaction conditions. Furthermore, the strategy also proceeded well with thiol and amino acid to access pyrazolo[4,3-c]quinoline derivatives In the experiment, the researchers used many compounds, for example, Copper(II) trifluoromethanesulfonate (cas: 34946-82-2Quality Control of Copper(II) trifluoromethanesulfonate).

Copper(II) trifluoromethanesulfonate (cas: 34946-82-2) belongs to copper catalysts. The applications of Copper-based nanoparticles have received great attention due to low toxicity and inexpensive, earth-abundant. Due to these characteristics, copper nanoparticles have generated a great deal of interest especially in the field of catalysis. Quality Control of Copper(II) trifluoromethanesulfonate

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

Copper/Iodine-Catalyzed Hydroxyamination of Alkenyl Keto Oximes Using DMSO as the Oxygen Atom Source and Medium was written by Yin, Xiao-Qiu;Deng, Wei;Xiang, Jian-Nan. And the article was included in European Journal of Organic Chemistry in 2022.Quality Control of Copper(II) trifluoromethanesulfonate This article mentions the following:

A new copper/I2-catalyzed hydroxyamination of alkenes of unsaturated keto oximes with DMSO as the hydroxy oxygen atom source and medium for assembling 2-(2-hydroxyalkyl)-3,4-dihydro-2H-pyrrole 1-oxides is described. Mechanistic studies suggest that the reaction is terminated by a single electron oxidation and subsequent nucleophilic reaction. In the experiment, the researchers used many compounds, for example, Copper(II) trifluoromethanesulfonate (cas: 34946-82-2Quality Control of Copper(II) trifluoromethanesulfonate).

Copper(II) trifluoromethanesulfonate (cas: 34946-82-2) 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. 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.Quality Control of Copper(II) trifluoromethanesulfonate

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

Synthesis of carbazoles based on gold-copper tandem catalysis was written by Choi, Subin;Srinivasulu, Vunnam;Ha, Sujin;Park, Cheol-Min. And the article was included in Chemical Communications (Cambridge, United Kingdom) in 2017.Formula: C10H2CuF12O4 This article mentions the following:

In the presence of Au(Ph₃P)Cl, AgOTf, and Cu(hfacac)₂, and using MnO₂ as a stoichiometric oxidant, aminophenylalkynyl diazodicarbonyl compounds (diazo anilinoalkynes) such as I underwent chemoselective tandem hydroamination, insertion, and aromatization reactions to yield hydroxycarbazoles such as II in 49-82% yields. The aminophenylalkynyl diazodicarbonyl compounds were prepared in four steps (three-step longest linear sequences) from anilines, propargyl bromides, and dicarbonyl compounds 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 applications of Copper-based nanoparticles have received great attention due to low toxicity and inexpensive, earth-abundant. 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”

Copper(II)-catalyzed selective CAr-H bond formylation: synthesis of dialdehyde aniline was written by Guo, Shiwei;Li, Yinghua;Fan, Weibin;Liu, Zhiqi;Huang, Deguang. And the article was included in Frontiers in Chemistry (Lausanne, Switzerland) in 2022.Category: copper-catalyst This article mentions the following:

A simple and efficient method for the synthesis of dialdehyde aniline I [R = 2-Me, 3-F, 2-Ph, etc.] in good yields (up to 83%) was explored using Cu(OTf)₂ as the catalyst, Selectfluor as the radical initiator, and DMSO as both the carbon and oxygen sources. Exptl. studies indicated that the reaction was achieved by the formylation of two CAr-H bonds, first at the para-position and then at the ortho-position. A possible mechanism was proposed, including the thermal homolysis of Selectfluor, the Cu(II)-facilitated formylation of the CAr-H bonds, and the hydrolysis of the amide under alk. conditions in air atm. In the experiment, the researchers used many compounds, for example, Copper(II) trifluoromethanesulfonate (cas: 34946-82-2Category: copper-catalyst).

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. The copper-mediated C-C, C-O, C-N, and C-S bond formation is a part of one oldest reaction, emphasizing the Ullmann cross-coupling reaction.Category: copper-catalyst

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

Direct N-Me Aziridination of Enones was written by Jat, Jawahar L.;Yadav, Ajay K.;Pandey, Chandra Bhan;Chandra, Dinesh;Tiwari, Bhoopendra. And the article was included in Journal of Organic Chemistry.Electric Literature of C2CuF6O6S2 This article mentions the following:

The first direct general method for N-Me aziridination of electron-deficient olefins, enones, was described using N-methyl-O-tosylhydroxylamine as the aminating agent in the presence of Cu(OTf)₂ catalyst. The aziridination of vinyl ketones, hitherto unknown for N-Me as well as N-H, was achieved efficiently. The open-flask reaction was stereospecific, operationally simple and additive-free. It also affords N-H aziridinated products under a similar reaction condition efficiently. In the experiment, the researchers used many compounds, for example, Copper(II) trifluoromethanesulfonate (cas: 34946-82-2Electric Literature of C2CuF6O6S2).

Copper(II) trifluoromethanesulfonate (cas: 34946-82-2) belongs to copper catalysts. The applications of Copper-based nanoparticles have received great attention due to the earth-abundant, low toxicity and inexpensive. The copper-mediated C-C, C-O, C-N, and C-S bond formation is a part of one oldest reaction, emphasizing the Ullmann cross-coupling reaction.Electric Literature of C2CuF6O6S2

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

Copper-Catalyzed Stereoselective Radical Phosphono-hydrazonation of Alkynes was written by Ogundipe, Olukayode Olamiji;Shoberu, Adedamola;Zou, Jian-Ping. And the article was included in Journal of Organic Chemistry in 2022.Quality Control of Copper(II) trifluoromethanesulfonate This article mentions the following:

A Cu-catalyzed stereoselective phosphono-hydrazonation of terminal alkynes with alkyl carbazates and diarylphosphine oxides is described. This methodol. provides facile access to a variety of β-hydrazonophosphine oxides in satisfactory yields. The reaction proceeds under mild conditions and exhibits good functional group tolerance. A mechanism featuring persulfate-mediated oxidative generation of phosphinoyl radicals and Cu-assisted hydrazonation is proposed. In the experiment, the researchers used many compounds, for example, Copper(II) trifluoromethanesulfonate (cas: 34946-82-2Quality Control of Copper(II) trifluoromethanesulfonate).

Copper(II) trifluoromethanesulfonate (cas: 34946-82-2) belongs to copper catalysts. Copper has continued to be one of the most utilized and important transition metal catalysts in synthetic organic chemistry. Due to these characteristics, copper nanoparticles have generated a great deal of interest especially in the field of catalysis. Quality Control of Copper(II) trifluoromethanesulfonate

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

Pd/Cu-Catalyzed Dehydrogenative Coupling of Dimethyl Phthalate: Synchrotron Radiation Sheds Light on the Cu Cycle Mechanism was written by Kanazawa, Yuki;Mitsudome, Takato;Takaya, Hikaru;Hirano, Masafumi. And the article was included in ACS Catalysis in 2020.HPLC of Formula: 14781-45-4 This article mentions the following:

Pd/Cu-catalyzed dehydrogenative coupling of di-Me phthalate is an important industrial process for the production of aromatic polyimide precursors. Nonetheless, the detailed mechanism of the Cu cycle has remained unclear. The present study describes the detailed mechanism of the Cu cycle in the [Pd(OAc)₂]/Cu(OAc)₂/1,10-phenanthroline (phen) system. The solution-phase X-ray absorption fine structure anal. of the catalyst solutions and the FEFF fitting as well as the evaluation of the catalytic and stoichiometric reactions reveal the following observations: (i) the major intermediate in the catalytic cycle is a mononuclear divalent [Cu(OAc)₂]·2H₂O species, (ii) coordination of the phen ligand to the Cu catalyst significantly inhibits the catalytic activity, (iii) 2 equiv of Cu(OAc)₂·H₂O oxidizes the zerovalent “Pd(phen)” species to divalent [Pd(OAc)₂(phen)], and (iv) the divalent [Cu(OAc)₂]₂·2AcOH species is regenerated by the treatment of monovalent Cu(OAc) with AcOH in air. In the experiment, the researchers used many compounds, for example, copper(ii)hexafluor-2,4-pentanedionate (cas: 14781-45-4HPLC of Formula: 14781-45-4).

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 low toxicity and inexpensive, earth-abundant. Due to these characteristics, copper nanoparticles have generated a great deal of interest especially in the field of catalysis. HPLC of Formula: 14781-45-4

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

A family of 3d-4f Cu-Ln ladder-like complexes: Synthesis, structures and magnetic properties was written by Yang, Meng;Liang, Xiaohong;Zhang, Yandie;Ouyang, Zhijian;Dong, Wen. And the article was included in Polyhedron in 2020.Formula: C10H2CuF12O4 This article mentions the following:

A family of rare 2p-3d-4f ladder-like one-chain complexes namely [LnCu(hfac)₅NIT-Ph-p-OCH₂trz·0.5C₆H₁₄]_n (Ln = Er (1), Ho (2), Yb (3); NIT-Ph-p-OCH₂trz = 2-(4-((1H-1,2,4-triazol-1-yl)methoxy)phenyl)-4,4,5,5-tetra- methylimidazoline-1-oxyl-3-oxide; hfac = hexafluoroacetylacetonate) were successfully synthesized simultaneously through reacting nitronyl nirtroxide radical NIT-Ph-p-OCH₂trz with Cu(hfac)₂ and Ln(hfac)₃. The structures of complexes of 1–3 were elucidated by single-crystal x-ray structural anal. and all complexes feature ladder-like chain structures. Nonzero out-of-phase signals are observed for Ho derivatives (2) indicating single-chain magnet behavior. 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 applications of Copper-based nanoparticles have received great attention due to the earth-abundant, low toxicity and inexpensive. Copper nanoparticles can catalyze the Ullmann coupling reaction in a wide range of applications.Formula: C10H2CuF12O4

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