Category: 1111-67-7

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Selective construction of 2-substituted benzothiazoles from o-iodoaniline derivatives S8 and N-tosylhydrazone via a copper-promoted [3 + 1 + 1]-type cyclization reaction has been realized. In the protocol, the carbon atom on N-tosylhydrazone could be regulated to construct benzothiazole by changing the reaction system. Furthermore, the transformation has achieved the construction of multiple carbon-heteroatom bonds.

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

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

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The crystal structure of the [Cu(NCS)-(C4H4N 2)]n was investigated. Each Cu atom was coordinated by one N atom of one pyridazine ligand and by one N and two S atoms of three symmetry-related thiocyanate anions within a distorted tetrahedron in the above compound. The compound was prepared by the reaction of CuSCN and pyridazine in acetonitrile in a teflon-lined steel autoclave at 373 K. It was observed that only one N atom of the pyridazine ligand was involved in Cu coordination. It was shown that the Cu atoms were connected via the thiocyanate anions, forming layers parallel to the ab plane.

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

As a society publisher, everything we do is to support the scientific community – so you can trust us to always act in your best interests, and get your work the international recognition that it deserves. HPLC of Formula: CCuNS, Name is Cuprous thiocyanate, HPLC of Formula: CCuNS, molecular formula is CCuNS. In a article，once mentioned of HPLC of Formula: CCuNS

The salts Cu(CN) and Cu(NCS) react with 2,2′-biquinoline (bq = C18H12N2) to give the adducts <n> (1) and <n> (2).Complex (1) crystallyzes in space group C2/m with cell dimensions a = 13.626(2), b = 15.322(2), c = 7.908(1) Angstroem, beta = 95.89(1) deg, and Z = 2.It consists of chains of CN-bridged copper atoms, each copper being either linearly or tetrahedrally co-ordinated.The tetrahedral copper is also co-ordinated to bq.Pairs of bq molecules belonging to paralell chains stack with an interplanar spacing of 3.35 Angstroem.Complex (2) is microcrystalline and from hot dimethyl sulphoxide gives crystals of (3).The polarization properties of the i.r. and electronic bands of complex (1) have been determined.In the optical spectrum two metal-to-ligand charge-transfer transitions could be detected.Comparison of the spectroscopic properties of the three compounds indicates a lower degree of polymerization for (3).

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

Chemistry graduates have much scope to use their knowledge in a range of research sectors, including roles within chemical engineering, chemical and related industries, healthcare and more. Reference of 1111-67-7. Introducing a new discovery about 1111-67-7, Name is Cuprous thiocyanate, The appropriate choice of redox mediator can avoid electrode passivation and overpotential, which strongly inhibit the efficient activation of substrates in electrolysis.

The structure of dichloro(thiosemicarbazide)copper(II), , has been determined by X-ray crystallography.Contrary to earlier proposals the compound is found to be monomeric.Electron spin resonance studies of the compound both as a polycrystalline solid and in dimethylformamide solution are also in accordance with a monomeric structure.The reactivity of towards some Lewis bases such as imidazole, 2,2′-bipyridyl etc. has also been studied.

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

Chemical engineers ensure the efficiency and safety of chemical processes, adapt the chemical make-up of products to meet environmental or economic needs, and apply new technologies to improve existing processes. name: Cuprous thiocyanate. Introducing a new discovery about 1111-67-7, Name is Cuprous thiocyanate

Two new dinuclear mu-CO32- Cu(II) complexes with different coordination modes for the carbonato bridge have been obtained by fixation of atmospheric CO2 and also directly prepared from the carbonate salt. The compounds comprise: [Cu2(mu-CO3)(dpyam)4](ClO4) 2(H2O)4 (1), and [Cu2(mu-CO3)2(dpyam)2](H 2O) (2), (in which dpyam = di-2-pyridylamine). For 1, the carbonate ligand acts as a bridge between two Cu(II) centres showing an anti-anti (mu-eta1-eta1-CO32-) coordination mode with a distorted square-based pyramidal geometry for each Cu(II) environment. Complex 2 involves the di-mu-CO32- bridge with a novel tridentate mu-eta1-eta2-CO32- coordination mode. The geometry around each copper atom is distorted square-based pyramidal. Susceptibility measurements for both complexes show a weak to moderately strong antiferromagnetic coupling with J values of -90.4 and -9.9 cm-1 for 1 and 2, respectively. The tridentate co-ordination mode of the carbonate bridge in 2 has not previously been reported for dinuclear Cu(II) complexes. Also its magnetic behaviour and superexchange pathway are discussed.

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

Chemistry graduates have much scope to use their knowledge in a range of research sectors, including roles within chemical engineering, chemical and related industries, healthcare and more. Synthetic Route of 1111-67-7. Introducing a new discovery about 1111-67-7, Name is Cuprous thiocyanate, The appropriate choice of redox mediator can avoid electrode passivation and overpotential, which strongly inhibit the efficient activation of substrates in electrolysis.

Copper(I) complexes of 1,2-bis(diphenylphosphino)ethane (dppe) with a stoichiometry Cu2(dppe)3(X)2 [X – = CN- (1), SCN- (2), NO3- (3)] are obtained from direct reactions of CuX and dppe. The complexes are structurally and spectroscopically (NMR and IR) characterized. The structure of the [Cu2(dppe)3]2+ dication is similar to the structural motif observed in many other complexes with a chelating dppe and a bridging dppe connecting two copper centers. In complexes 1-3, the anions are confined to the cavity formed by the phosphines which force a monodentate coordination mode despite the predominant bidentate/bridging character of the anions. The coordination angles rather than the thermochemical radii dictate the steric requirement of anions. While the solution behavior of 3, with nitrate, is similar to complexes studied earlier, complexes with pseudohalides exhibit new solution behavior.

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

Having gained chemical understanding at molecular level, chemistry graduates may choose to apply this knowledge in almost unlimited ways, as it can be used to analyze all matter and therefore our entire environment. 1111-67-7, Name is Cuprous thiocyanate, belongs to copper-catalyst compound, is a common compound. name: Cuprous thiocyanateIn an article, once mentioned the new application about 1111-67-7.

Treatment of an acetonitrile solution of CuI with 1,7-dithia-18-crown-6 (1,7-DT18C6) at 100C affords the coordination polymer ? 1[(CuI)2(1,7-DT18C6)2] (1) in which 1,7-DT18C6 ligands bridge (CuI)2 rings into double chains. 1D polymers of the type ?1[M{(Cu3I 4)(1,7-DT18C6)}] (M = K, 2; M = Cs, 3) can be isolated under similar conditions in the presence of respectively KI and CsI. Both contain bridging heptacyclic [Cu6I8]2- units but crystallise in different space groups, namely P1 and C2/m. The cesium cation of 3 is markedly displaced from the best plane through the thiacrown ether donor atoms. Reaction of 1,7-DT18C6 with CuSCN in the presence of NaSCN yields ?2[{Na(CH3CN)2} {(CuSCn) 2(1,7-DT18C6)}][Cu(SCN)2] (4), in which ?1[(CuSCN)2] double chains are linked through macrocycles into sheets. Infinite ? 1[{Cu(SCN)2}-] chains compensate the charge of the Na+ cations. Complex 1 can imbibe 0.90 mol CsNO3 per mol of 1,7-DT18C6 pairs.

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

Chemical research careers are more diverse than they might first appear, as there are many different reasons to conduct research and many possible environments. Synthetic Route of 1111-67-7. Introducing a new discovery about 1111-67-7, Name is Cuprous thiocyanate, The appropriate choice of redox mediator can avoid electrode passivation and overpotential, which strongly inhibit the efficient activation of substrates in electrolysis.

The new area of lithio(thiocyanato)cuprates has been developed. Using inexpensive, stable and safe CuSCN for their preparation, these complexes revealed Lipshutz-type dimeric motifs with solvent-dependent point group identities; planar, boat-shaped and chair shaped conformers are seen in the solid state. In solution, both Lipshutz-type and Gilman structures are clearly seen. Since the advent in 2007 of directed ortho cupration, effort has gone into understanding the structure-reactivity effects of amide ligand variation in and alkali metal salt abstraction from Lipshutz-type cuprates such as (TMP)2Cu(CN)Li2(THF) 1 (TMP = 2,2,6,6-tetramethylpiperidide). The replacement of CN- with SCN- is investigated presently as a means of improving the safety of lithium cuprates. The synthesis and solid state structural characterization of reference cuprate (TMP)2Cu(CN)Li2(THP) 8 (THP = tetrahydropyran) precedes that of the thiocyanate series (TMP)2Cu(SCN)Li2(L) (L = OEt29, THF 10, THP 11). For each of 9-11, preformed TMPLi was combined with CuSCN (2 : 1) in the presence of sub-stoichiometric Lewis base (0.5 eq. wrt Li). The avoidance of Lewis basic solvents incurs formation of the unsolvated Gilman cuprate (TMP)2CuLi 12, whilst multidimensional NMR spectroscopy has evidenced the abstraction of LiSCN from 9-11 in hydrocarbon solution and the in situ formation of Gilman reagents. The synthetic utility of 10 is established in the selective deprotometalation of chloropyridine substrates, including effecting transition metal-free homocoupling in 51-69% yield.

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

Reactions catalyzed within inorganic and organic materials and at electrochemical interfaces commonly occur at high coverage and in condensed media. We’ll be discussing some of the latest developments in chemical about CAS: Quality Control of Cuprous thiocyanate, Name is Cuprous thiocyanate, belongs to copper-catalyst compound, is a common compound. Quality Control of Cuprous thiocyanateIn an article, authors is Szpakolski, Katherine B., once mentioned the new application about Quality Control of Cuprous thiocyanate.

Complexes containing di(2-pyridyl) ketone (dpk) as a bi- (N,N) and tridentate (N,N,O) ligand have been synthesised1,2 and characterized by spectral and structural studies. Products 1 and 2 are polymorphs of the polymeric copper(I) complex [Cu(dpk)(NCS)]n containing dpk with thiocyanate anions which bridge to form a one-dimensional continuous polymer chain. The novel dinuclear copper(II) complex [Cu2(dpkA·acetone) 2(NCS)2] (3) was formed when 1 and 2 were allowed to stand in the supernatant. In this instance it appears that a transition-metal- promoted aldol condensation has occurred between the solvent acetone and the ketone carbonyl of dpk to produce the novel ligand, dpkA·acetone. Product 3 contains two five-coordinate copper(II) ions, both with trigonal bipyramidal coordination, bridged through deprotonated hydroxy groups on each dpkA·acetone. A chemical rationalisation for the formation of 3 is proposed. The dinuclear copper(I) complex [Cu2(dpk)2I 2] (4) is also reported, which contains two four-coordinate copper(I) ions that are bridged together through iodide ions.

This is the end of this tutorial post, and I hope it has helped your research about 1111-67-7 Quality Control of Cuprous thiocyanate

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