Category: 15418-29-8

Application In Synthesis of Copper(I) tetra(acetonitrile) tetrafluoroborate. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: Copper(I) tetra(acetonitrile) tetrafluoroborate, is researched, Molecular C8H12BCuF4N4, CAS is 15418-29-8, about Copper-Catalyzed, Chloroamide-Directed Benzylic C-H Difluoromethylation. Author is Zeng, Xiaojun; Yan, Wenhao; Paeth, Matthew; Zacate, Samson B.; Hong, Pei-Hsun; Wang, Yufei; Yang, Dongqi; Yang, Kundi; Yan, Tao; Song, Chang; Cao, Zhi; Cheng, Mu-Jeng; Liu, Wei.

We report herein the first catalytic strategy to harness amidyl radicals derived from N-chloroamides for C-C bond formation, allowing for the discovery of the first catalytic benzylic C-H difluoromethylation. Under copper-catalyzed conditions, a wide variety of N-chlorocarboxamides and N-chlorocarbamates direct selective benzylic C-H difluoromethylation with a nucleophilic difluoromethyl source at room temperature This scalable protocol exhibits a broad substrate scope and functional group tolerance, enabling late-stage difluoromethylation of bioactive mols. This copper-catalyzed, chloroamide-directed strategy has also been extended to benzylic C-H pentafluoroethylation and trifluoromethylation. Mechanistic studies on the difluoromethylation reactions support that the reactions involve the formation of benzylic radicals via intramol. C-H activation, followed by the copper-mediated transfer of difluoromethyl groups to the benzylic radicals.

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

COA of Formula: C8H12BCuF4N4. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: Copper(I) tetra(acetonitrile) tetrafluoroborate, is researched, Molecular C8H12BCuF4N4, CAS is 15418-29-8, about Enantioselective cyanation of remote C-H bonds via cooperative photoredox and copper catalysis. Author is Cheng, Zhongming; Chen, Pinhong; Liu, Guosheng.

Optically pure alkylnitriles are important structural motifs found in agrochems., pharmaceuticals, and natural products, which can be further transferred to acids, amines and amides. Direct asym. cyanation of sp3 C-H bonds represents the most efficient synthetic pathway to these optically pure alkylnitriles. However, selective functionalization of sp3 C-H bonds remains a crucial issue due to the inertness of sp3 C-H bonds as well as the difficulties in the control of stereo and regioselectivity. Inspired by enzymic oxygenases and halogenases, such as cytochrome P 450 and nonheme iron enzymes, the radical-based C-H functionalization has received much attention, which was initiated with a hydrogen atom transfer (HAT) process. Recently, numerous reports have been disclosed for the highly efficient functionalization of C-H bonds with an intramol. HAT process as a key step to govern the reactivity and site selectivity. Our group has developed a copper-catalyzed radical relay process for the enantioselective cyanation and arylation of benzylic C-H bonds using TMSCN and ArB(OH)2 as nucleophiles resp. Mechanistic studies indicated that a benzylic radical generated via a radical replay process can be trapped by a reactive chiral copper (II) cyanide enantioselectively, delivering optically pure benzyl nitriles efficiently. Herein, we communicate the catalytic asym. cyanation of remote C-H bonds by merging photoredox catalysis with copper catalysis. This reaction proceeds under mild reaction conditions and exhibits good functional group compatibility as well as wide substrates scope. Addnl., the nitrile group was further reduced to amide under hydrogen atm. This reaction provides an efficient pathway to synthesize chiral δ-cyano alcs. and 1, 6-amino alcs. The general procedure is as following: in a dried sealed tube, substrate 1 (0.2 mmol, 1.0 equivalent), Cu(CH3CN)4PF6 (0.01 mmol, 5 mol%), L (0.015 mmol, 7.5 mol%) and Ir(ppy)3 (0.002 mmol, 1 mol%) were dissolved in dichloromethane (4.0 mL) under N2 atmosphere, and stirred for 30 min. Then, TMSCN (50μL, 0.4 mmol, 2 equivalent) was added slowly under N2 atmosphere. The tube was sealed with a Teflon-lined cap, and the mixture was stirred under the irradiation of blue LED for 1∼7 d. The reaction mixture was diluted with dichloromethane, filtered through a short pad of celite. A solution of TBAF (3 equivalent) and HOAc (3 equivalent) was added to the filtration. The mixture was stirred for 5 min and then washed with water (3×10 mL) and dried over anhydrous Na2SO4. After filtration and concentration, the residue was purified by silica gel chromatog. (eluent: petroleum ether/ethyl acetate) to afford target product.

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

Name: Copper(I) tetra(acetonitrile) tetrafluoroborate. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: Copper(I) tetra(acetonitrile) tetrafluoroborate, is researched, Molecular C8H12BCuF4N4, CAS is 15418-29-8, about Divergent Chemistry Paths for 3D and 1D Metallo-Covalent Organic Frameworks (COFs). Author is Xu, Hai-Sen; Luo, Yi; See, Pei Zhen; Li, Xing; Chen, Zhongxin; Zhou, Yi; Zhao, Xiaoxu; Leng, Kai; Park, In-Hyeok; Li, Runlai; Liu, Cuibo; Chen, Fangzheng; Xi, Shibo; Sun, Junliang; Loh, Kian Ping.

The marriage of dynamic covalent chem. (DCC) and coordination chem. is a powerful tool for assembling complex architectures from simple building units. Recently, the synthesis of woven covalent organic frameworks (COFs) with topol. fascinating structures has been achieved using this approach. However, the scope is highly limited and there is a need to discover new pathways that can assemble covalently linked organic threads into crystalline frameworks. Herein, authors have identified branching pathways leading to the assembly of three-dimensional (3D) woven COFs or one-dimensional (1D) metallo-COFs (mCOFs), where the mechanism is underpinned by the absence or presence of ligand exchange.

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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 [Cu36H10(PET)24(PPh3)6Cl2] Reveals Surface Vacancy Defects in Ligand-Stabilized Metal Nanoclusters, published in 2021-07-28, which mentions a compound: 15418-29-8, Name is Copper(I) tetra(acetonitrile) tetrafluoroborate, Molecular C8H12BCuF4N4, Formula: C8H12BCuF4N4.

Precise identification and in-depth understanding of defects in nanomaterials can aid in rationally modulating defect-induced functionalities. However, few studies have explored vacancy defects in ligand-stabilized metal nanoclusters with well-defined structures, owing to the substantial challenge of synthesizing and isolating such defective metal nanoclusters. Herein, a novel defective copper hydride nanocluster, [Cu36H10(PET)24(PPh3)6Cl2] (Cu36; PET: phenylethanethiolate; PPh3: triphenylphosphine), is successfully synthesized at the gram scale via a simple one-pot reduction method. Structural anal. reveals that Cu36 is a distorted half cubic nanocluster, evolved from the perfect Nichol’s half cube. The two surface copper vacancies in Cu36 are found to be the principal imperfections, which result in some structural adjustments, including copper atom reconstruction near the vacancies as well as ligand modifications (e.g., substitution, migration, and exfoliation). D. functional theory calculations imply that the above-mentioned defects have a considerable influence on the electronic structure and properties. The modeling suggests that the formation of defective Cu36 rather than the perfect half cube is driven by the enlargement of the energy gap between the HOMO and the LUMO of the nanocluster. The structural evolution induced by the surface copper atom vacancies provides atomically precise insights into the defect-induced readjustment of the local structure and introduces new avenues for understanding the chem. of defects in nanomaterials.

Compound(15418-29-8)Formula: C8H12BCuF4N4 received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(Copper(I) tetra(acetonitrile) tetrafluoroborate), if you are interested, you can check out my other related articles.

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

SDS of cas: 15418-29-8. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: Copper(I) tetra(acetonitrile) tetrafluoroborate, is researched, Molecular C8H12BCuF4N4, CAS is 15418-29-8, about Copper-Catalyzed Azide-Ynamide Cyclization to Generate α-Imino Copper Carbenes: Divergent and Enantioselective Access to Polycyclic N-Heterocycles. Author is Liu, Xin; Wang, Ze-Shu; Zhai, Tong-Yi; Luo, Chen; Zhang, Yi-Ping; Chen, Yang-Bo; Deng, Chao; Liu, Rai-Shung; Ye, Long-Wu.

Here an efficient copper-catalyzed cascade cyclization of azide-ynamides via α-imino copper carbene intermediates is reported, representing the first generation of α-imino copper carbenes from alkynes. This protocol enables the practical and divergent synthesis of an array of polycyclic N-heterocycles, e.g., I, in generally good to excellent yields with broad substrate scope and excellent diastereoselectivities. Moreover, an asym. azide-ynamide cyclization has been achieved with high enantioselectivities (up to 98:2 e.r.) by employing BOX-Cu complexes as chiral catalysts. Thus, this protocol constitutes the first example of an asym. azide-alkyne cyclization. The proposed mechanistic rationale for this cascade cyclization is further supported by theor. calculations

Compound(15418-29-8)SDS of cas: 15418-29-8 received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(Copper(I) tetra(acetonitrile) tetrafluoroborate), if you are interested, you can check out my other related articles.

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

Formula: C8H12BCuF4N4. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: Copper(I) tetra(acetonitrile) tetrafluoroborate, is researched, Molecular C8H12BCuF4N4, CAS is 15418-29-8, about Synthesis, crystal structures and photo-thermal properties of five naphthyl-functionalized Copper(II) coordination compounds. Author is Wang, Hao-Hai; Li, Jing-Zhe; Nie, Jing; Yao, Zi-Xuan; Li, Hong-Jing; Liu, Kuan-Guan; Yan, Xiao-Wei.

For achieving solar absorber and conversion mol. materials with excellent photothermal conversion ability, five mononuclear Copper(II) coordination compounds were designed and isolated. They are fully characterized by IR, Powder XRD, Solid-state UV, and TGA. Single-crystal x-ray structural anal. reveals that they are typical photothermal conversion mols. with double chromophores: one antenna chromophore (NT group here) and the second chromophores (Cu(dmap)2+4, Cu(dmap)2+2, Cu(bpy)2+2 and Cu(phen)2+2). Both chromophores have great influence on their solid-state optical absorption. Their photothermal conversion experiments show that compounds 3, 4 and 5 have the better results (the highest temperature increment 21.7° and equilibrium temperature ∼ 60.7°) than compounds 1 and 2. Those results give some clues for illustrating the mol. mechanisms of solar absorber and photothermal conversion mol. materials.

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

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 15418-29-8, is researched, SMILESS is [Cu+](N#CC)(N#CC)(N#CC)N#CC.[B+3]([F-])([F-])([F-])[F-], Molecular C8H12BCuF4N4Journal, Article, Journal of the American Chemical Society called [Cu81(PhS)46(tBuNH2)10(H)32]3+ Reveals the Coexistence of Large Planar Cores and Hemispherical Shells in High-Nuclearity Copper Nanoclusters, Author is Huang, Ren-Wu; Yin, Jun; Dong, Chunwei; Ghosh, Atanu; Alhilaly, Mohammad J.; Dong, Xinglong; Hedhili, Mohamed Nejib; Abou-Hamad, Edy; Alamer, Badriah; Nematulloev, Saidkhodzha; Han, Yu; Mohammed, Omar F.; Bakr, Osman M., the main research direction is copper thiophenolate butylamine nanocluster preparation crystal structure hydrogen evolution.Reference of Copper(I) tetra(acetonitrile) tetrafluoroborate.

Cu-based nanomaterials have attracted tremendous interest due to their unique properties in the fields of photoluminescence and catalysis. As a result, studies on the correlation between their mol. structure and their properties are of great importance. Cu nanoclusters are a new class of nanomaterials that can provide an at.-level view of the crystal structure of Cu nanoparticles. Herein, a high-nuclearity Cu nanocluster with 81 Cu atoms, formulated as [Cu81(PhS)46(tBuNH2)10(H)32]3+ (Cu81), was successfully synthesized and fully studied by x-ray crystallog., XPS, H evolution experiments, electrospray ionization mass spectrometry, NMR spectroscopy, and d. functional theory calculations Cu81 exhibits extraordinary structural characteristics, including (i) three types of novel epitaxial surface-protecting motifs; (ii) an unusual planar Cu17 core; (iii) a hemispherical shell, comprised of a curved surface layer and a planar surface layer; and (iv) two distinct, self-organized arrangements of protective ligands on the curved and planar surfaces. The present study sheds light on structurally unexplored Cu nanomaterials and paves the way for the synthesis of high-nuclearity Cu nanoclusters.

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

SDS of cas: 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 New Photosensitizers Based on Heteroleptic CuI Complexes and CO2 Photocatalytic Reduction with [NiII(cyclam)]Cl2. Author is Gracia, Lisa-Lou; Luci, Luisa; Bruschi, Cecilia; Sambri, Letizia; Weis, Patrick; Fuhr, Olaf; Bizzarri, Claudia.

Earth-abundant metal complexes have been attracting increasing attention in the field of photo(redox)catalysis. In this work, the synthesis and full characterization of four new heteroleptic CuI complexes are reported, which can work as photosensitizers. The complexes bear a bulky diphosphine (DPEPhos=bis[(2-diphenylphosphino)phenyl] ether) and a diimine chelating ligand based on 1-benzyl-4-(quinol-2′yl)-1,2,3-triazole. Their absorption has a relative maximum in the visible-light region, up to 450 nm. Thus, their use in photocatalytic systems for the reduction of CO2 with blue light in combination with the known catalyst [NiII(cyclam)]Cl2 was tested. This system produced CO as the main product through visible light (λ=420 nm) with a TON up to 8 after 4 h. This value is in line with other photocatalytic systems using the same catalyst. Nevertheless, this system is entirely noble-metal free.

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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 Triple-bridged helical binuclear copper(I) complexes: Head-to-head and head-to-tail isomerism and the solid-state luminescence, published in 2020, which mentions a compound: 15418-29-8, mainly applied to copper pyridylphospholane complex preparation luminescence frontier mol orbital; crystal structure copper pyridylphospholane complex, Recommanded Product: 15418-29-8.

A family of helical dinuclear copper(I) pyridylphospholane complexes [Cu2L3X]X (X = BF4-, Cl- and Br-) was prepared The family includes the first examples of this type of complex based on copper(I) chloride and copper(I) bromide. The two isomers typical of this class of compounds, head-to-head and head-to-tail complexes, were studied in solution by spectroscopic and optical methods, and in the solid state by X-ray diffraction. Furthermore, the solid-state luminescence of the complexes at different temperatures was studied, and the results were interpreted using quantum-chem. calculations It was shown that the luminescence of the complexes is attributed to the 3(M + X)LCT transitions.

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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 Preparation, photo- and electrochemical studies of a homoleptic imine-phosphaalkene Cu(I) complex, published in 2020-12-01, which mentions a compound: 15418-29-8, Name is Copper(I) tetra(acetonitrile) tetrafluoroborate, Molecular C8H12BCuF4N4, Reference of Copper(I) tetra(acetonitrile) tetrafluoroborate.

A 1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU) functionalized phosphaalkene was used as a bidentate ligand towards a [Cu(I)L2]+ complex. The spectroscopic, electrochem. and photophys. properties of the compound were studied revealing a rich redox chem. indicative of ligand non-innocence. The compound is weakly emissive with excited state lifetimes of up to 9 ns. NMR and electrochem. anal. indicate a complex dynamic behavior of this photosensitizer in solution

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