Category: copper-catalyst

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”

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”

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

7787-70-4, Copper bromide (2.223 g, 10.00 mmols) was added to 2-pyridone (1.936 g, 20.38 mmols) dissolved in 10 mL THF, 3 mL of water, and 0.859 g (10.6 mmol) concentrated HBr (?9 M). Dark crystals formed in solution after one week. The product was isolated by vacuum filtration, washed with cold THF, and air-dried to yield 3.41 g (82%) of brown crystals. Single crystals (brown prisms) were obtained by recrystallization in THF/water (10:3). IR (KBr): 3241m, 3150m, 3082m, 2936m (nu N-H), 1638s/1621s (C=O) 1586s, 1536s, 1466m, 1374s, 1277m, 1216m, 1156m, 1091m, 997m, 859m, 775s, 718m, 593m, 539m, 511m cm-1. Anal. Calc. for C20H20N4O4Cu2Br4: C, 29.04; H, 2.44; N, 6.77. Found: C, 28.79; H, 1.76; N, 6.60%.

The synthetic route of 7787-70-4 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Shortsleeves, Kelley C.; Turnbull, Mark M.; Seith, Christopher B.; Tripodakis, Emilia N.; Xiao, Fan; Landee, Christopher P.; Dawe, Louise N.; Garrett, David; De Delgado, Graciela Diaz; Foxman, Bruce M.; Polyhedron; vol. 64; (2013); p. 110 – 121;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

34946-82-2, Copper(II) trifluoromethanesulfonate is a copper-catalyst compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

A solution of Cu(OTf )2 (0.089 g, 0.25 mmol) in 1 mL of CH3CN was added to a stirred solution of 2-pina (0.050 g, 0.25 mmol) in 1 mL of CH3CN. The blue suspension was stirred for 1.5 h and the solvent was removed under reduced pressure. The resulting blue solid was washed with Et2O (5 mL ¡Á 3). Dissolving the product in DMF and vapor diffusion of Et2O into the blue solution at room temperature led to green crystals suitable for X-ray crystallographic characterization (0.095 g, 54% yield). Anal. Calcd for C19H23N5O9F6S2Cu: C, 32.28; H, 3.28; N, 9.90. Found: C, 31.96; H, 3.03; N, 10.15. FT-IR (cm-1): 1644, 1619, 1546, 1457, 1431, 1386, 1369, 1243, 1223, 1147, 1106, 1028, 862, 759, 698, 667, 634, 572, 516, 418., 34946-82-2

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

Reference£º
Article; McMoran, Ethan P.; Mugenzi, Clement; Fournier, Kyle; Draganjac, Mark; Tony, Donavon; Jeong, Kwangkook; Powell, Douglas R.; Yang, Lei; Journal of Coordination Chemistry; vol. 69; 3; (2016); p. 375 – 388;,
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 dry double-mouth bottle to place Ir – 1 (0.0695 g, 0.1 mmol), CuClNHC (0.0488 g, 0.1 mmol), vacuum pumping and nitrogen cycle three times, then the nitrogen flow by adding 10 ml ethanol, stirring reflux reaction for 4 hours, cooling to room temperature, then added potassium hexafluorophosphate (0.184 g, 1 mmol), stirring at the room temperature reaction 2 hours, filtered, concentrated filtrate, ethanol: dichloromethane=1:10 column, get the orange solid 0.064 g, and the yield is 50%.

With the synthetic route has been constantly updated, we look forward to future research findings about [1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene]copper chloride,belong copper-catalyst compound

Reference£º
Patent; Jiangsu University Of Science And Technology; Shi Chao; Li Qiuxia; Zhang Xinghua; (24 pag.)CN108690096; (2018); A;,
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.6046-93-1, Copper(II) acetate hydrate it is a common compound, a new synthetic route is introduced below., 6046-93-1

Bis(8-quinolinolato)copper(II) was synthesized as follows. In a typical synthesis, 1.45 g (10 mmol) of 8-quinolinol ligand was dissolved in 20 ml THF, followed by the dropwise addition of a solution of 1.0 g (5 mmol) Cu(CH3COO)2*H2O in 10ml THF at reflux temperature. The resultant solution was stirred and refluxed for 2 h. After cooling, the solid product was separated by filtration and denoted as CuQ2.

As the paragraph descriping shows that 6046-93-1 is playing an increasingly important role.

Reference£º
Article; Hu, Jing; Zou, Yongcun; Liu, Jing; Sun, Jian; Yang, Xiaoyuan; Kan, Qiubin; Guan, Jingqi; Research on Chemical Intermediates; vol. 41; 8; (2015); p. 5703 – 5712;,
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

Synthesis of [(SIMes)CuBr]. In an oven-dried vial, copper(I) bromide (0.522 g, 3.63 mmol), SIMes.HCl (0.86 g, 2.52 mmol) and sodium tert-butoxide (0.243 g, 2.52 mmol) were loaded inside a glovebox and stirred in dry THF (18 mL) overnight at room temperature outside of the glovebox. After filtration of the reaction mixture through a plug of Celite, the filtrate was mixed with hexane to form a precipitate. A second filtration afforded 0.808 g (71% yield) of the title complex as an off-white solid.Spectroscopic and analytical data for [(SIMes)CuBr]: 1H NMR (300 MHz, [D6]acetone): delta=7.01 (s, 4H, HAr), 4.16 (s, 4H, NCH2), 2.37 (s, 12H, ArCH3), 2.29 (s, 6H, ArCH3); 13C NMR (75 MHz, CDCl3): delta=202.6 (C, NCN), 138.5 (C, CAr), 135.3 (CH, CAr), 135.0 (C, CAr), 129.7 (CH, CAr), 51.0 (CH2, NCH2), 21.0 (CH3, ArCH3), 18.0 (CH3, ArCH3); Elemental analysis calcd for C21H26BrCuN2 (449.89): C, 56.06; H, 5.83; N, 6.23. Found: C, 55.98; H, 5.64; N, 6.21%.

With the complex challenges of chemical substances, we look forward to future research findings about 7787-70-4,belong copper-catalyst compound

Reference£º
Patent; Institut Catala d’Investigacio Quimica; Institucio Catalana de Recerca i Estudis Avancats; US2009/69569; (2009); A1;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Copper(II) trifluoromethanesulfonate, cas is 34946-82-2, it is a common heterocyclic compound, the copper-catalyst compound, its synthesis route is as follows.,34946-82-2

Copper(II) triflate (50.0 mg, 0.14 mmol) was dissolved in methanol (3 ml) and the ligand (42.8 mg, 0.07 mmol) added. The reaction mixture was stirred at r. t. for 16 h. Then the mixture was evaporated to dryness and the resulting green solid recrystallised from dichloromethane and pentane. 5: 23.6 mg, 34.0%. C42H37N5O8S2F6Cu¡¤2CH2Cl2: Anal. Calc. C, 43.16; H, 3.30; N, 5.59. Found: C, 42.72; H, 3.71; N, 5.87%. HR-MS: C40H36N5O263Cu Calc. 681.2239. Found: 681.2202 (100.0), C40H36N5O265Cu Calc. 683.2147. Found 683.2105 (65.1). IR: nunu [cm-1]=3066, 2962, 2870, 1657, 1598, 1535, 1484, 1454, 1265, 1172, 1109, 1032, 953, 756, 639. Magnetic susceptibility in CD2Cl2 (295 K): mueff=1.78muB.

34946-82-2 is used more and more widely, we look forward to future research findings about Copper(II) trifluoromethanesulfonate

Reference£º
Article; Sauer, Desiree C.; Wadepohl, Hubert; Polyhedron; vol. 81; (2014); p. 180 – 187;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

578743-87-0, [1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene]copper chloride is a copper-catalyst compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,578743-87-0

General procedure: To an oven-dried screwed 20 mL vial were added (NHC)CuCl (c7 or c8, 0.2 mmol) suspended in dry THF (3 mL); in another vial, [tBu3PN]Li (1b, 42.3 mg, 0.95 eq.) was also dissolved in dry THF (3 mL), then the vial was put into glove-box fridge (-35 C) for one hour. Then the cold mixture was dropped into the (NHC)CuCl/THF suspension slowly under stirring and the suspension was turned into clear solution as the lithium salt added. After addition, the reaction mixture was kept at room temperature in glove box for 13 hours. After the reaction was completed, the volatile was removed under vacuum and dry hexane or pentane (7 mL) was added into the formed oily residue. The suspension obtained was kept stirring for another 15 mins at room temperature, then filtered through a short pad of neutral celite to get rid of precipitate. The filtrate was cooled down in the fridge (-35 C) for 3-4 hours to remove the unreacted lithium salt 1b further. Repeated once again to get the clear hexane or pentane filtrate. The filtrate was evaporated until white crystallized solid was formed, which is the catalytic active species (3 or 4). IPrCuCl (c7, 97 mg, 0.2 mmol); Obtain IPrCuNPtBu3 (3, 99 mg, 78%) as Colorless Solid; 1H NMR (C6D6, 600 MHz) delta 7.26-7.21 (br, m, 4H, m-ArH), 7.17-7.14 (br, m, 2H, p-ArH), 6.40 (s, 2H, NCH=), 2.83 (sep, 4H, J = 6.6 Hz, CH(CH3)2), 1.61 (d, 12H, J = 6.6 Hz, CH(CH3)2), 1.37 (d, 27H, J(PH) = 10.8 Hz, P(C(CH3)3)3), 1.20 (d, 12H, J = 6.6 Hz, CH(CH3)2); 13C NMR (C6D6, 151 MHz) delta 146.18, 136.50, 130.42, 128.68, 124.42, 122.05, 40.78, 40.49, 31.01, 29.33, 25.04, 24.42; 31P NMR (C6D6, 243 MHz) delta 26.35 (s); Elemental analysis calcd for [C39H63CuN3P+0.67 THF]: C, 69.84; H, 9.61; N, 5.86. Found: C, 69.48; H, 9.90; N, 6.19.

The synthetic route of 578743-87-0 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Bai, Tao; Yang, Yanhui; Han, Chao; Tetrahedron Letters; vol. 58; 15; (2017); p. 1523 – 1527;,
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

Example 1 2-(Carboxy-5-nitro-phenyl)malonic acid dimethyl ester A solution of 2-chloro-4-nitrobenzoic acid (75 g, 372 mmol) in dimethyl malonate (900 mL, 20 equivalents) was degassed with nitrogen for 15 min. Copper (I) bromide (5.4 g, 37 mmol) was added in one portion. Sodium methoxide (48.3 g, 894 mmol) was added in one portion to the solution while stirring and the contents exothermed to 48 C. Fifteen minutes later, the contents were heated to 70 C. for 24 hrs. The reaction was complete by nmr. Water (900 mL) was added to the cooled reaction followed by hexanes (900 mL). The aqueous layer was separated, toluene (900 mL) added, the solution filtered through Celite, and the aqueous layer separated. Fresh toluene (1800 mL) was added to the aqueous layer and the biphasic mixture acidified with 6 N aqueous HCl (90 mL). A white precipitate formed and the contents were stirred for 18 hrs. The product was filtered off and dried to give a white solid, 78.1 g (70%, mp 153 C.). IR 2923, 2853, 1750, 1728, 1705, 1458, 1376, 1352, 1305, 1261 cm-1.1 H NMR (CD3)2 SO delta8.37(d,J=2 Hz, 1H), 8.30 (d,J=1 Hz,2H), 5.82(s, 1H),3.83 (s,6H).13 C NMR (CD3)2 SOdelta168.0, 167.3, 149.4, 137.1, 135.8, 132.5, 125.4, 123.7, 54.5, 53.4.Anal. Calcd for C11 H10 NO8:C,48.49; H,3.73; N, 4.71. Found:C, 48.27; H,3.72; N, 4.76.

As the rapid development of chemical substances, we look forward to future research findings about 7787-70-4

Reference£º
Patent; Pfizer Inc; US5968950; (1999); A;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”