Category: 15418-29-8

Zeng, Xiaojun; Yan, Wenhao; Zacate, Samson B.; Cai, Aijie; Wang, Yufei; Yang, Dongqi; Yang, Kundi; Liu, Wei published the article 《Copper-Catalyzed Deaminative Difluoromethylation》. Keywords: copper catalyst deaminative difluoromethylation alkyl amine; copper; deamination; difluoromethylation; homogeneous catalysis; pyridinium salts.They researched the compound: Copper(I) tetra(acetonitrile) tetrafluoroborate( cas:15418-29-8 ).Product Details of 15418-29-8. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:15418-29-8) here.

The difluoromethyl group (CF2H) is considered to be a lipophilic and metabolically stable bioisostere of an amino (NH2) group. Therefore, methods that can rapidly convert an NH2 group into a CF2H group would be of great value to medicinal chem. The authors report herein an efficient Cu-catalyzed approach for the conversion of alkyl pyridinium salts, which can be readily synthesized from the corresponding alkyl amines, to their alkyl difluoromethane analogs. This method tolerates a broad range of functional groups and can be applied to the late-stage modification of complex amino-containing pharmaceuticals.

There is still a lot of research devoted to this compound(SMILES：[Cu+](N#CC)(N#CC)(N#CC)N#CC.[B+3]([F-])([F-])([F-])[F-])Product Details of 15418-29-8, and with the development of science, more effects of this compound(15418-29-8) can be discovered.

Reference:
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

Name: Copper(I) tetra(acetonitrile) tetrafluoroborate. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: Copper(I) tetra(acetonitrile) tetrafluoroborate, is researched, Molecular C8H12BCuF4N4, CAS is 15418-29-8, about Metal-to-Ligand Ratio-Dependent Chemodivergent Asymmetric Synthesis. Author is Zheng, Min; Gao, Ke; Qin, Haitao; Li, Guigen; Lu, Hongjian.

Chemodivergent asym. synthesis was achieved by tuning the metal-to-ligand ratio in an organometallic catalytic system. Using N-(aroyloxy)phthalimides I (Ar = 2,6-difluorophenyl, 2,3,4,5,6-pentafluorophenyl, Ph, etc.; R = 4-bromophenyl, thiophen-2-yl, Bu, etc.) as the precursor of either an oxygen-centered aroyloxy radical or a nitrogen-centered phthalimidyl radical, enantioselective oxocyanation or aminocyanation of alkenes RCH=CH2 was achieved sep. through a dual photoredox and copper catalysis. The metal-to-ligand ratio can exert chemoselective control while retaining the high enantiopurity of divergent products II, (2R)-RCH(CN)CH2OC(O)Ar. Both reactions proceed efficiently with catalyst loading as low as 0.2 mol% and can be performed on a gram scale without loss of chemoselectivity or enantioselectivity. Chemodivergent asym. 1,5-aminocyanation or 1,5-oxocyanation of vinylcyclopropane can also be realized by this protocol. Mechanistic investigations involving ESR (EPR) experiments were performed to shed light on the stereochem. and chemodivergent results.

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Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called A stable well-defined copper hydride cluster consolidated with hemilabile phosphines, published in 2021, which mentions a compound: 15418-29-8, mainly applied to copper phosphinopyridine hydride cluster preparation hydrogenation catalyst; crystal structure copper phosphinopyridine hydride octanuclear cluster, Reference of Copper(I) tetra(acetonitrile) tetrafluoroborate.

Cu hydrides are very useful in hydrogenation reactions. The authors report a stable Stryker-type Cu hydride reagent protected by hemilabile phosphines: [Cu8H6(dppy)6](OTf)2 (Cu8-H, dppy = diphenylphosphino-2-pyridine). The metal core of this cluster has a bicapped octahedral configuration, and the Cu-bound hydrides each triply bridges over a triangular face of the octahedron. This cluster is attractive due to its facile preparation and excellent stability under ambient conditions. The comparable activity and selectivity both in the stoichiometric and catalytic reactions make Cu8-H a promising alternative to Stryker’s reagent.

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Reference:
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Influence of Sulfur Oxidation State and Substituents on Sulfur-Bridged Luminescent Copper(I) Complexes Showing Thermally Activated Delayed Fluorescence, published in 2019-06-03, which mentions a compound: 15418-29-8, Name is Copper(I) tetra(acetonitrile) tetrafluoroborate, Molecular C8H12BCuF4N4, Computed Properties of C8H12BCuF4N4.

Copper(I) complexes are seen as more sustainable alternatives to those containing metal ions such as iridium and platinum for emitting devices. Copper(I) complexes have the ability to radiatively decay via a thermally activated delayed fluorescence (TADF) pathway, leading to higher photoluminescent quantum yields. In this work authors discuss six new heteroleptic Cu(I) complexes of the diphosphine-diimine motif. The diphosphine ligands employed are (oxidi-2,1-phenylene)bis(diphenylphosphine) (DPEPhos), and the diimine fragments are sulfur-bridged dipyridyl ligands (DPS) which are functionalized at the 6,6′-positions of the pyridyl rings (R = H, Me, Ph) and have varying oxidation states at the bridging sulfur atom (S, SO2). The proton (Cu-DPS, Cu-DPSO2) and Ph (Cu-Ph-DPS, Cu-Ph-DPSO2) substituted species are found to form monometallic complexes, while those with Me substitution (Cu-Me-DPS, Cu-Me-DPSO2) are found to have a “”Goldilocks”” degree of steric bulk leading to bimetallic species. All six Cu(I) complexes show emission in the solid state, with the photophys. properties characterized by low temperature steady-state and time-resolved spectroscopies and variable temperature time-correlated single photon counting. Cu-DPS, Cu-DPSO2, Cu-Me-DPS, Cu-Me-DPSO2, and Cu-Ph-DPSO2 were shown to emit via a TADF mechanism, while Cu-Ph-DPS showed photoluminescence properties consistent with triplet ligand-centered (3LC) emission.

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Reference:
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

Nierengarten, Jean-Francois; Nierengarten, Iwona; Holler, Michel; Sournia-Saquet, Alix; Delavaux-Nicot, Beatrice; Leoni, Enrico; Monti, Filippo; Armaroli, Nicola published the article 《Dinuclear Copper(I) Complexes Combining Bis(diphenylphosphanyl)acetylene with 1,10-Phenanthroline Ligands》. Keywords: crystal structure copper acetylenediphosphine phenanthroline derivative dinuclear; copper acetylenediphosphine phenanthroline derivative preparation electrochem photophys property.They researched the compound: Copper(I) tetra(acetonitrile) tetrafluoroborate( cas:15418-29-8 ).Quality Control of Copper(I) tetra(acetonitrile) tetrafluoroborate. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:15418-29-8) here.

Dinuclear Cu(I) complexes were prepared starting from bis(diphenylphosphanyl)acetylene (dppa), [Cu(MeCN)4](BF4) and various 1,10-phenanthroline ligands (NN), 1,10-phenanthroline (phen), neocuproine (dmp), bathophenanthroline (Bphen), bathocuproine (Bdmp) and 2-phenyl-1,10-phenanthroline (mpp). The resulting [Cu2(μ-dppa)2(NN)2](BF4)2 complexes were thus obtained in excellent yields (88 to 94 %). X-ray crystal structure anal. of four complexes revealed that the 10-membered dimetallacycle adopts a chair-like conformation in the solid state. Detailed variable temperature NMR studies have evidenced dynamic coordination/decoordination of the NN ligands as well as ligand exchange reactions. At high temperature (100°), entropic effects tend to destabilize the dinuclear heteroleptic complexes. As a result, homoleptic mononuclear complexes, i.e. [Cu(NN)2]+ and undefined dppa Cu(I) complexes, start to appear in solution In contrast, the heteroleptic coordination scenario is almost exclusively favored at lower temperatures For most of the dinuclear complexes, the 10-membered dimetallacycle remains flexible and chair-to-chair interconversion occurs faster than the NMR timescale even at -70°. In the particular case of the mpp derivative, the bulky Ph substituent prevents the isomerization of the metallacycle and thus contributes to rigidify the structure. This rigidification has a dramatic effect on the emission properties of this particular compound The emission quantum yield of [Cu2(μ-dppa)2(mpp)2](BF4)2 is effectively one order of magnitude higher when compared to all the other complexes in this series (20% vs. 0.3-1.7% in the solid state).

If you want to learn more about this compound(Copper(I) tetra(acetonitrile) tetrafluoroborate)Quality Control of Copper(I) tetra(acetonitrile) tetrafluoroborate, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(15418-29-8).

Reference:
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

Elsayed Moussa, Mehdi; Braese, Jens; Marquardt, Christian; Seidl, Michael; Scheer, Manfred published an article about the compound: Copper(I) tetra(acetonitrile) tetrafluoroborate( cas:15418-29-8,SMILESS:[Cu+](N#CC)(N#CC)(N#CC)N#CC.[B+3]([F-])([F-])([F-])[F-] ).Category: ruthenium-catalysts. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:15418-29-8) through the article.

The reactions of the phosphinoborane Ph2PBH2·NMe3 with Cu(I) halides [CuCl, CuBr, CuI] and [Cu(CH3CN)4BF4], resp., were studied. Depending on the ratio of the reactants used, the former reaction allowed for the synthesis of eight neutral coordination compounds with the general formula [CunXn(Ph2PBH2·NMe3)m] (X = Cl, Br, I; n = 1, 2, 4, 5; m = 2, 4) (4-11). The latter reaction, however, led to the formation of the homoleptic complex [Cu(Ph2PBH2·NMe3)3][BF4] (13). The structures of the products 4-11 and 13 were compared to related complexes possessing the well-known Ph3P ligand. All compounds were characterized by single crystal X-ray structure anal., multinuclear NMR spectroscopy, IR spectroscopy and mass spectrometry.

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Reference:
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

Application of 15418-29-8. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: Copper(I) tetra(acetonitrile) tetrafluoroborate, is researched, Molecular C8H12BCuF4N4, CAS is 15418-29-8, about Synthesis, structures, DFT studies and luminescent properties of copper(I)-diimine complexes and application in yellow-green light-emitting diode. Author is Wu, Tian-Cheng; Hu, Qiao-Long; Huang, Ting-Hong; Cui, Yi-Shun; Zheng, Dan; Ji, Changyan; Luo, Cheng.

A series of copper(I)-diimine complexes, [Cu(bdpp)(bpy)]BF4 (1), [Cu(bdpp) (pen)]BF4 (2), [Cu(bdpp)(damp)]BF4 (3), [Cu(bdpp)(pen)]BF4 (4) (bdpp = 4,6-bis-(biphenylphosphino)phenoxazine, bpy = 2,2′-bipyridine, phen = 1,10-Phenanthroline, dmp = 2,9-dimethyl-1,10-phenanthroline, bphen = 4,7-diphenyl-1,10-phenanthroline), were synthesized and characterized by IR, 1H NMR, 31P NMR, XRD and x-ray crystal structure anal. Structural anal. reveals that each Cu+ in 1-4 is four-coordinated by two N atoms and two P atoms and adopts a distorted tetrahedral geometry. DFT calculations show that the HOMOs in 1-4 are mainly comprised of bdpp and copper d-orbitals, while the LUMOs are mainly dominated by diimine ligands. Calculation of at. charges indicates that the charges of the central Cu atoms in 1-4 are less than + 1, and the diimine ligands may be the key to the metal charge transfer to the coordinated atom. In 1-4, the maximum phosphorescent lifetimes and quantum yields are up to 349μs and 22%, resp. Moreover, complex 3 was used for fabricating the LED device, showing a decent performance with the maximum EQE of 11%.

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Reference:
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

Recommanded Product: Copper(I) tetra(acetonitrile) tetrafluoroborate. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: Copper(I) tetra(acetonitrile) tetrafluoroborate, is researched, Molecular C8H12BCuF4N4, CAS is 15418-29-8, about Copper(I) complex with BINAP and 3,5-dimethylpyrazole: synthesis and photoluminescent properties.

A reaction of [Cu(MeCN)4]BF4 with PzH (3,5-dimethylpyrazole) and BINAP [2,20-bis(diphenylphosphino)-1,10-binaphthyl] gives mononuclear CuI complex [Cu(PzH)(BINAP)]BF4 containing the mol. of nondeprotonated pyrazole and one BINAP ligand with two phosphorus atoms chelating the metal. This complex exhibits a bright phosphorescence originating from the 3(M+L)LCT state at room temperature At 77 K, the emission is splitted into two components: 3(M+L)LCT and 3LC transitions.

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Reference:
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Asymmetric Propargylic Radical Cyanation Enabled by Dual Organophotoredox and Copper Catalysis, published in 2019-04-17, which mentions a compound: 15418-29-8, mainly applied to asym propargylic radical cyanation dual organophotoredox copper catalysis, Synthetic Route of C8H12BCuF4N4.

The first asym. propargylic radical cyanation was realized through a dual photoredox and copper catalysis. An organic photocatalyst serves to both generate propargyl radicals and oxidize Cu(I) species to Cu(II) species. A chiral Cu complex functions as an efficient organometallic catalyst to reassemble the propargyl radical and cyanide in an enantio-controlled manner. Thus, a diverse range of optically active propargyl cyanides were produced with high reaction efficiency and enantioselectivities (28 examples, 57-97% yields and 83-98% ee). Moreover, mechanistic investigations including experiments and d. functional theory calculations were performed to illustrate the reaction pathway and stereochem. results. Thus, e.g., propargyl substrate I + TMSCN → II (90%, 91% ee) in presence of Cu(MeCN)4BF4, a chiral bis-oxazoline ligand and 10-phenyl-10H-phenothiazine as the organic photocatalyst.

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Reference:
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI

So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Huang, En-He; Zhang, Zhi-Xin; Ye, Si-Han; Chen, Yang-Bo; Luo, Wen-Feng; Qian, Peng-Cheng; Ye, Long-Wu researched the compound: Copper(I) tetra(acetonitrile) tetrafluoroborate( cas:15418-29-8 ).Category: ruthenium-catalysts.They published the article 《Copper-Catalyzed Carbocyclization of Silyl Enol Ether Tethered Ynamides for Efficient and Practical Synthesis of 2-Azabicyclo[3.2.0] Compounds》 about this compound( cas:15418-29-8 ) in Chinese Journal of Chemistry. Keywords: azabicyclo compound preparation regioselective diastereoselective; silyl enol ether ynamide carbocyclization copper catalyst. We’ll tell you more about this compound (cas:15418-29-8).

An efficient copper-catalyzed carbocyclization of silyl enol ether tethered ynamides has been developed, allowing rapid and practical construction of diverse 2-azabicyclo[3.2.0] compounds I (PG = Ts, 4-bromobenzenesulfonyl, 4-methoxybenzenesulfonyl; R = C6H5, 4-FC6H4, hexyl, etc.). in generally good to excellent yields with broad substrate scope under mild reaction conditions. Importantly, this protocol not only constitutes a rare example of non-noble metal-catalyzed alkyne carbocyclization, but also represents a rare cyclization on the β-position of π-tethered ynamides. The possibility of asym. carbocyclization via kinetic resolution also emerges.

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Reference:
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI