copper related catalyst

In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact.7787-70-4, Copper(I) bromide it is a common compound, a new synthetic route is introduced below.7787-70-4

General procedure: A suspension of copper(I) iodide (0.190 g, 1.0 mmol) and dppc (0.534 g, 1.0 mmol) in20 mL of CH2Cl2 was stirred for 6 h at room temperature to form a light-yellow precipitate.The precipitate was filtered off and purified by recrystallization from CH2Cl2/ethanolto give yellow crystals (Yield: 0.618 g, 85.3%).

With the synthetic route has been constantly updated, we look forward to future research findings about Copper(I) bromide,belong copper-catalyst compound

Reference£º
Article; Li, Qian; Wei, Qiong; Xie, Pei; Liu, Li; Zhong, Xin-Xin; Li, Fa-Bao; Zhu, Nian-Yong; Wong, Wai-Yeung; Chan, Wesley Ting-Kwok; Qin, Hai-Mei; Alharbi, Njud S.; Journal of Coordination Chemistry; vol. 71; 24; (2018); p. 4072 – 4085;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

The copper-catalyst compound, cas is 34946-82-2 name is Copper(II) trifluoromethanesulfonate, mainly used in chemical industry, its synthesis route is as follows.,34946-82-2

Tert-leucine phosphinoazomethinylate potassium salt (100 mg, 0.23 mmol, 1 eq.) and copper bis-triflate Cu(OTf)2 (114 mg, 0.23 mmol, 1 eq.) are placed in a round-bottom flask. Anhydrous THF is then added (9 mL, 40 mL per mmol). The reaction mixture is agitated at room temperature for 1 hour. The solvent is evaporated and the product is dried under reduced pressure. A green powder is obtained (210 mg, 98%).

With the rapid development of chemical substances, we look forward to future research findings about 34946-82-2

Reference£º
Patent; Mauduit, Marc; Rix, Diane; Crevisy, Christophe; Wencel, Joanna; US2010/267956; (2010); A1;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.578743-87-0,[1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene]copper chloride,as a common compound, the synthetic route is as follows.

In a glove box, IPrCuCl (224 mg, 0.46 mmol) and potassium tris(1-pyrazolyl)borohydride (127 mg, 0.50 mmol) in THF in a 40 mixture was stirred at room temperature for 3 hours dongan. Filtered through a plug of Celite and the reaction mixture after the evaporation of the solvent under reduced pressure to give product as a white powder IPrCuTp, 578743-87-0

As the paragraph descriping shows that 578743-87-0 is playing an increasingly important role.

Reference£º
Patent; University Of Southern California; Thompson, Mark E; Hamz, Rasya; Durovitch, Peter I; (50 pag.)KR2015/26932; (2015); A;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

As a common heterocyclic compound, it belongs to copper-catalyst compound, name is Cuprouschloride, and cas is 7758-89-6, its synthesis route is as follows.,7758-89-6

Step 3. 3,3-Ethylenedioxy-5alpha-hydroxy-11beta-[4-(N,N-dimethylamino)phenyl]-17beta-cyano-17alpha-trimethylsilyloxyestr-9(10)-ene (4): Magnesium (2.6 g, 107 mmol) was added to a 1.0 L, 3-neck flask equipped with a magnetic stir bar, addition funnel and a condenser. A crystal of iodine was added followed by dry THF (100 mL) and a few drops of 1,2-dibromoethane. The mixture was stirred under nitrogen and heated in a warm water bath until evidence of reaction was observed. A solution of 4-bromo-N,N-dimethylaniline (19.6 g, 98 mmol) in dry THF (100 mL) was then added dropwise over a period of 20 min. and the mixture stirred for an additional 1.5 hours. Solid copper (I) chloride (1 g, 10.1 mmol) was added followed 30 minutes later by a solution of the 5alpha-,10alpha-epoxide (3, 8.4 g, 19.55 mmol) in dry THF (10 mL). The mixture was stirred at room temperature for 1 hr., then quenched by the addition of saturated NH4Cl solution (100 mL). With vigorous stirring, air was drawn through the reaction mixture for 30 minutes. The mixture was diluted with ether (250 mL) and the layers allowed to separate. The THF/ether solution was washed with 10% NH4Cl solution (3*), 2 N NH4OH solution (3*) and brine (1*). The organic layers were combined, dried over Na2SO4, filtered and concentrated in vacuo to give the crude product. Crystallization of the crude product from ether gave 8.6 g of the pure product 4 as a white solid in 80% yield; m.p.=222-224 C. dec. FTIR (KBr, diffuse reflectance) numax 3221, 2951, 2232, 1613, 1517 and 1253 cm-1. NMR (CDCl3) delta 0.20 (s, 9H, OSiMe3), 0.5 (s, 3H, C18-CH3), 2.83 (s, 6H, NMe2), 3.9 (m, 4H, OCH2CH2O), 4.3 (m, 1H, C11alpha-CH), 6.63 (d, J=9 Hz, 2H, 3′,5′ aromatic-CH’s) and 7.03 (d, J=9 Hz, 2′,6′ aromatic-CH’s).

With the complex challenges of chemical substances, we look forward to future research findings about 7758-89-6,belong copper-catalyst compound

Reference£º
Patent; The United States of America as represented by the Department of Health and Human Services; US6900193; (2005); B1;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 7787-70-4, name is Copper(I) bromide. This compound has unique chemical properties. The synthetic route is as follows. 7787-70-4

General procedure: An acetonitrile solution (5 mL) of cuprous chloride (0.008 g,0.084 mmol) was introduced dropwise to a solution of 1(0.040 g, 0.084 mmol) in dichloromethane (5 mL). The reactionwas allowed to stir at room temperature for 6 h. Afterthat, solvent was evaporated under vacuum to give microcrystallineproduct of 5 as a white solid.

With the complex challenges of chemical substances, we look forward to future research findings about Copper(I) bromide

Reference£º
Article; Kumar, Saurabh; Balakrishna, Maravanji S; Journal of Chemical Sciences; vol. 129; 8; (2017); p. 1115 – 1120;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.34946-82-2,Copper(II) trifluoromethanesulfonate,as a common compound, the synthetic route is as follows.

To a yellow-brown solution of L1 (60 mg, 0.09 mmol) in THF (3 mL)was added a blue solution of [Cu(OTf)2] (36 mg, 0.09 mmol) at roomtemperature. Upon addition the solution colored to dark green. Themixture solution was stirred for 8 h and after filtered, 20 mL of diethylether were then added to the filtrate to precipitate a green solid. Thesolvents were removed by filtration and the residue was washed withether (3¡Á5 mL) and dried in vacuum to yield product 3 as a blue-greenpowder. The formulation of 3 was deduced from elemental analysis asbeing [Cu(H2O)2(L1)](OTf)2, H2O. Yield: 50 mg, 56%. Crystals suitablefor a X-ray diffraction study were obtained by slow vapor diffusion ofEt2O into a CH3CN solution of 3 in a sealed tube. IR (solid, cm-1):nu(NH) 3334 (w), nu(CO) 1654 (w), nu(CF) 1027 (s). UV-Vis (MeCN) lambdamax,nm (epsilon, M-1cm-1): 257 (28110), 284 (26400), 666 (51), EPR (9.30 GHz;CH3CN; 150 K): g//=2.27, g?=2.05, A//=166 G. Elemental analysis calcd (%) for C39H29CuF6N7O8S2. 1 H2O: C, 45.93; H, 3.46; N, 9.62.Found: C, 45.72; H, 3.17; N, 9.23.

34946-82-2, The synthetic route of 34946-82-2 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Ayad, Massinissa; Schollhammer, Philippe; Le Mest, Yves; Wojcik, Laurianne; Petillon, Francois Y.; Le Poul, Nicolas; Mandon, Dominique; Inorganica Chimica Acta; vol. 497; (2019);,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact.578743-87-0, [1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene]copper chloride it is a common compound, a new synthetic route is introduced below., 578743-87-0

In a flame-dried Schlenk tube under argon atmosphere, [CuCl(IPr)] (1) (0.3mmol, 150mg, 1 equiv.) and KCN (0.3mmol, 19mg, 1 equiv.) were introduced in degassed MeOH (5mL) and the reaction mixture was stirred under reflux (50C) for 4h. After returning to room temperature, the reaction mixture was concentrated to dryness under vacuum. The complex was then dissolved in dichloromethane and filtered through a pad of Celite and concentrated again under vacuum. A purification by recrystallization by slow diffusion of pentane in a THF solution of the complex led to the pure complex (4) as a white powder (143mg, 97% yield). 1H-NMR (CDCl3, 400MHz): delta 1.22 (d, J=6.9Hz, 12H), 1.27 (d, J=6.9Hz, 12H), 2.50 (sept, J=6.9Hz, 4H), 7.14 (s, 2H), 7.30 (d, J=7.8Hz, 4H), 7.50 (t, J=7.8Hz, 4H) ppm. (spectroscopic data in good agreement with the literature) [54].

As the paragraph descriping shows that 578743-87-0 is playing an increasingly important role.

Reference£º
Article; Elie, Margaux; Mahoro, Gilbert Umuhire; Duverger, Eric; Renaud, Jean-Luc; Daniellou, Richard; Gaillard, Sylvain; Journal of Organometallic Chemistry; vol. 893; (2019); p. 21 – 31;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.34946-82-2,Copper(II) trifluoromethanesulfonate,as a common compound, the synthetic route is as follows.

General procedure: A mixture of ligand L (23.1 mg, 55 mumol) and appropriate metalsalt (55 mumol) in nitromethane (20 mL) was stirred at room temperaturefor 48 h under the normal atmosphere. The complexeswere isolated as a solids by evaporation of the solvent and followedby a dissolution of the residue in the minimum volume of CH3CNand precipitation of the complexes by the gradual addition ofether. Obtained solids were filtered off and dried in air., 34946-82-2

As the paragraph descriping shows that 34946-82-2 is playing an increasingly important role.

Reference£º
Article; Wa??sa-Chorab, Monika; Marcinkowski, Dawid; Kubicki, Maciej; Hnatejko, Zbigniew; Patroniak, Violetta; Polyhedron; vol. 118; (2016); p. 1 – 5;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

14172-91-9, 5,10,15,20-Tetraphenyl-21H,23H-porphine copper(II) is a copper-catalyst compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,14172-91-9

(a) N-Bromosuccinimide (0.105 g, 0.592 mmol) was added with stirring to a solution of 0.02 g (0.0296 mmol) of complex 5 in a mixture of 10 mL of chloroform and 1 mL of DMF, the mixture was stirred at ambient temperature for 8 h. The reaction mixture was concentrated to minimal volume, 10 mL of DMF, water, and solid NaCl were added, the precipitate was separated by filtration, washed with water, acetonitrile, dried, chromatographed on aluminum oxide using chloroform as an eluent, and reprecipitated from ethanol. Yield 0.026 g (0.0199 mmol), 68%. MS (m/z (Irel, %)): 1306.6 (98) [M]+; for C44H20N4Br8Cu calcd.: 1307.5. IR (nu, cm-1): 2925 s, 2853 m nu(C-H, Ph), 1680 w, 1488 m nu(C=C, Ph), 1467 w, 1444 w nu(C=N), 1366 w, 1351 w nu(C-N), 1175 m, 1145 w, 1108 w delta(C-H, Ph), 1024 s nu(C-C), 924 m, 858 m gamma(C-H, pyrrole ring), 756 m, 734 m, 695 m gamma(C-H, Ph). For C44H20N4Br8Cu anal. calcd. (%): C, 40.42; N, 4.29; H, 1.54; Br, 48.89. Found (%): C, 40.15; N, 4.16; H, 1.59; Br, 48.71.

As the paragraph descriping shows that 14172-91-9 is playing an increasingly important role.

Reference£º
Article; Chizhova; Shinkarenko; Zav?yalov; Mamardashvili, N. Zh.; Russian Journal of Inorganic Chemistry; vol. 63; 6; (2018); p. 732 – 735; Zh. Neorg. Khim.; vol. 63; 6; (2018); p. 695 – 699,5;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Copper(I) bromide, A common heterocyclic compound, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc., below Introduce a new synthetic route. 7787-70-4

General procedure: The complexes were prepared according to the following method [14]: 1mmol of copper(I) bromide or copper(I) chloride is stirred in methanol until complete dissolution. Then, 2.1mmol of the corresponding phosphine ligand was added. The mixture was stirred at 60C for 30min. under nitrogen atmosphere. A microcrystalline precipitate was obtained by concentration of the solution at reduced pressure. The solid product was dissolved in a dichloromethane/methanol mixture and the solution was gradually cooled to 4C to give an air stable and colorless crystalline solid suitable for X-ray single-crystal diffraction studies.

7787-70-4 is used more and more widely, we look forward to future research findings about Copper(I) bromide

Reference£º
Article; Espinoza, Sully; Arce, Pablo; San-Martin, Enrique; Lemus, Luis; Costamagna, Juan; Farias, Liliana; Rossi, Miriam; Caruso, Francesco; Guerrero, Juan; Polyhedron; vol. 85; (2014); p. 405 – 411;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”