Category: copper-catalyst

As a common heterocyclic compound, it belongs to copper-catalyst compound, name is Copper(I) bromide, and cas is 7787-70-4, its synthesis route is as follows.

CuBr2 (12.5 mg, 0.056 mmol) dissolved in 14 mL absolute ethyl alcohol was slowly dropwise added into a dichloromethane solution(10 mL) containing 20.2 mg (0.05 mmol) of deebq at ambient temperature. The mixture was stirred for 1 min to give a dark red-brown solution. Then, four droplets of hydrobromic acid together with five droplets of hydrogen dioxide were in turn added to it. After stirring for another 1 min, the mixture was abruptly transformed into pale red-brown and allowed standing 24 h. The achieved crystal was collected by filtration, washed with EtOH and dried in vacuum. Yield: 92%. Anal. Calc. for C48H40N4O8Cu2-Br4: C, 46.21; H, 3.23; N, 4.49. Found: C, 46.14; H, 3.04; N, 4.17% .IR (KBr pellet, cm-1): 3067(w) for the nuC-H of the quinolyl ring; 2981(m), 2933(w), 2902(w), 2872(w) for the nuC-H of -CH3 and -CH2; 1729(s) for the nuC=O of the -COOCH2CH3; 1589 (m),1512 (m), 1459 (m) for the nuC=C and mC=N of the quinolyl ring;1265(s), 1209(s), 1102(m) for the nuC-O-C of the -COOCH2CH3.

7787-70-4, In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles.,7787-70-4 ,Copper(I) bromide, other downstream synthetic routes, hurry up and to see

Reference£º
Article; Yang, Hao; Sun, Xiao-Mei; Ren, Xiao-Ming; Polyhedron; vol. 83; (2014); p. 24 – 29;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Name is 5,10,15,20-Tetraphenyl-21H,23H-porphine copper(II), as a common heterocyclic compound, it belongs to copper-catalyst compound, and cas is 14172-91-9, its synthesis route is as follows.

Cu(II)TPP (3) (0.7 g, 1.0 mmol)was dissolved in chloroform (700 mL) and acetic acid (15 mL) was added. Cu(NO3)2¡¤3H2O (0.63 g,2.6 mmol) was dissolved in acetic anhydride (70 mL) and added to the reaction mixture. The mixturewas heated to 35 C and let to stir for 5 h. The reaction mixture was washed with water(3 ¡Á 700 mL), saturated K2CO3 solution (2 ¡Á 700 mL) and again with water (2 ¡Á 700 mL), dried overanhydrous Na2SO4 and solvents removed by azeotropic evaporation with methanol. The residue waspurified by column chromatography using CH2Cl2:pentane 1:1 as eluent resulting in Cu(II)TPPNO2(4) as a dark purple solid (0.65 g, 0.89 mmol, 89%)

14172-91-9, In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles.,14172-91-9 ,5,10,15,20-Tetraphenyl-21H,23H-porphine copper(II), other downstream synthetic routes, hurry up and to see

Reference£º
Article; Blom, Magnus; Norrehed, Sara; Andersson, Claes-Henrik; Huang, Hao; Light, Mark E.; Bergquist, Jonas; Grennberg, Helena; Gogoll, Adolf; Molecules; vol. 21; 1; (2016);,
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 Copper(I) bromide, and cas is 7787-70-4, its synthesis route is as follows.

In a round bottom flask, copper(I) bromide (0.3mmol, 0.043g) was dissolved in 5mL of degassed MeCN. Under continuous stirring and in a N2-atmosphere, a 2mL degassed NCMe solution of HC(3,5-Me2pz)3 (0.33mmol, 0.1g) was added dropwise. The mixture was stirred at room temperature for 3h, then its volume was reduced to ca. 2mL by evaporation. Hexane (10mL) was added, and the obtained precipitate was filtered off and recrystallized from a mixture if CH2Cl2 and hexane (1:1) to afford complexes 3 as off-white powder. [CuBr(Tpm*)] (3): Yield (108.9mg) 82%. Elemental analysis calcd (%) for C16H22BrCuN6: C 43.49, H 5.02, N 19.02; found: C 43.45, H 5.51, N 19.62. FTIR (KBr): nu (cm-1)=3397m, 2962m, 2925m, 1562s, 1455s, 1412s, 1383s, 1303s, 1239s, 1153 w, 1112 w, 1035m, 980m, 905m, 845s, 824m, 796m, 695s. Far IR (CsI): nu (cm-1)=216m nu(Cu-Br). 1H NMR (300MHz, DMSO-d6, delta): 7.83 (s, 1H, HC(3,5-Me2pz)3), 6.04 (s, 3H, 4-H-pz), 2.40, 2.22 (s, s, 9H, 9H, 3,5-Me). 13C{1H} NMR (300MHz, DMSO-d6, delta): 149.12 (3-Cquat-pz), 140.28 (5-Cquat-pz), 106.44 (4-C-pz), 70.67 (HC(3,5-Me2pz)3), 13.48,10.37 (3,5-Me). ESI(+)MS in MeCN (m/z assignment, % intensity): 204 ({[HC(3,5-Me2pz)3]Cu+MeCN}+, 100), 361 ({[HC(3,5-Me2pz)3]Cu}+, 26).

7787-70-4, In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles.,7787-70-4 ,Copper(I) bromide, other downstream synthetic routes, hurry up and to see

Reference£º
Article; Mahmoud, Abdallah G.; Martins, Luisa M.D.R.S.; Guedes da Silva, M. Fatima C.; Pombeiro, Armando J.L.; Inorganica Chimica Acta; vol. 483; (2018); p. 371 – 378;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

34946-82-2, 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. Copper(II) trifluoromethanesulfonate, cas is 34946-82-2,the copper-catalyst compound, it is a common compound, a new synthetic route is introduced below.

LigandH2L2 (100 mg, 0.275 mmol)was added to the solutionof Cu(OTf)2 (298 mg, 0.826 mmol) in 10mLMeNO2 forminga clear light blue coloured solution. The reaction mixture wasstirred for 30 min at 50 C. The solution was filtered andleft in open air for slow evaporation. X-ray quality light bluecrystals were collected after 24 h. (Yield: 64%). Anal. Calcd.for C24H36Cu4F12N10O30S4: C, 18.54; H, 2.33; N, 9.01%.Found. C, 18.14; H, 2.82; N, 8.74%. IR (nu, cm-1): 3424.20(H2O); 1681.07 (C=O); 1638.57 (C=N).

Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of Copper(II) trifluoromethanesulfonate, 34946-82-2

Reference£º
Article; Lakma, Avinash; Hossain, Sayed Muktar; Pradhan, Rabindra Nath; Singh, Akhilesh Kumar; Journal of Chemical Sciences; vol. 130; 7; (2018);,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Name is Copper(I) bromide, as a common heterocyclic compound, it belongs to copper-catalyst compound, and cas is 7787-70-4, its synthesis route is as follows.

General procedure: [CuBr(CNR)3] (1-4). Any one of the isocyanides CNR (R=Xyl, 2-Cl-6-MeC6H3, 2-Naphtyl, Cy) (3.1mmol) was added to a suspension of CuBr (143mg, 1.0mmol) in chloroform (5mL) and the reaction mixture was stirred at RT for 1h. The solvent was removed in vacuo and the product was recrystallized by slow concentration of a CH2Cl2/hexane solution at RT to give colorless (1, 2, and 4) or orange (3) crystalline solid. (0027) [CuBr(CNXyl)3] (1). Yield 530mg, 99%. Anal. Calc. for C27H27N3BrCu: C, 60.39; H, 5.07; N, 7.83. Found: C, 59.88; H, 4.89; N, 7.70%. HRESI+-MS, m/z: 325.0756 ([M-(XylNC)2]+, calcd 325.0760). IR spectrum in KBr, selected bands, cm-1: 2136 s nu(C?N). 1H NMR in CDCl3, delta: 2.49 (s, 6H, CH3), 7.11 (d, J 7.6Hz, 2H, aryl) 7.23 (d, J 7.6Hz, 1H, aryl). 13C{1H} NMR in CDCl3, delta: 18.95 (CH3), 127.92, 129.33, 135.49 (aryl).

7787-70-4, In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles.,7787-70-4 ,Copper(I) bromide, other downstream synthetic routes, hurry up and to see

Reference£º
Article; Melekhova, Anna A.; Novikov, Alexander S.; Luzyanin, Konstantin V.; Bokach, Nadezhda A.; Starova, Galina L.; Gurzhiy, Vladislav V.; Kukushkin, Vadim Yu.; Inorganica Chimica Acta; vol. 434; (2015); p. 31 – 36;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

It is a common heterocyclic compound, the copper-catalyst compound, [1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene]copper chloride, cas is 578743-87-0 its synthesis route is as follows.

In a dry double-mouth bottle to place Pt – 3 (0.0594 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 0.047 g, and the yield is 40%.

578743-87-0, In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles.,578743-87-0 ,[1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene]copper chloride, other downstream synthetic routes, hurry up and to see

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”

7787-70-4, 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. Copper(I) bromide, cas is 7787-70-4,the copper-catalyst compound, it is a common compound, a new synthetic route is introduced below.

A mixture of CuBr (0.57g, 4mmol) and 2,9-dimethyl-1,10-phenanthroline (L3) (0.72g, 2mmol) in CH3CN (30ml) was stirred overnight under nitrogen atmosphere at room temperature. The copper complex was obtained as a brick-red solid in 90% yield.

The chemical industry reduces the impact on the environment during synthesis,7787-70-4,Copper(I) bromide,I believe this compound will play a more active role in future production and life.

Reference£º
Article; Liang, Zhaoli; Wang, Fei; Chen, Pinhong; Liu, Guosheng; Journal of Fluorine Chemistry; vol. 167; (2014); p. 55 – 60;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

578743-87-0, 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. [1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene]copper chloride, cas is 578743-87-0,the copper-catalyst compound, it is a common compound, a new synthetic route is introduced below.

2-(2-Pyridyl)benzimidazole (78.1 mg, 0.4 mmol) was dissolved in 10 mL of dry THF under N2 and this solution was transferred via cannula to suspension of sodium hydride (17.6 mg, 0.44 mmol, 60% in mineral oil) in dry THF. Reaction mixture was stirred at RT for 1 h and then chloro[l,3-bis(2,6-di-i-propylphenyl)imidazol-2- ylidene]copper(I) (195.1 mg, 0.4 mmol) was added. Reaction mixture was stirred at RT for 3 h. The resulting mixture was filtered through Celite and solvent was removed by rotary evaporation. Recrystallization by vapor diffusion of Et20 into a CH2C12 solution of product gave 154 mg (59.5%>) of dark yellow crystals. Anal, calcd. for C39H44CuN5: C, 72.47; H, 6.86; N, 10.48; Found: C, 72.55; H, 6.94; N, 10.84.

The chemical industry reduces the impact on the environment during synthesis,578743-87-0,[1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene]copper chloride,I believe this compound will play a more active role in future production and life.

Reference£º
Patent; THE UNIVERSITY OF SOUTHERN CALIFORNIA; THOMPSON, Mark; DJUROVICH, Peter; KRYLOVA, Valentina; WO2011/63083; (2011); A1;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

578743-87-0, 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. [1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene]copper chloride, cas is 578743-87-0,the copper-catalyst compound, it is a common compound, a new synthetic route is introduced below.

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

The chemical industry reduces the impact on the environment during synthesis,578743-87-0,[1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene]copper chloride,I believe this compound will play a more active role in future production and life.

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”

7787-70-4, 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. Copper(I) bromide, cas is 7787-70-4,the copper-catalyst compound, it is a common compound, a new synthetic route is introduced below.

Cuprous iodide (0.198 g, 1.04 mmol)Adding to a solution of 3,4-bis(diphenylphosphino)-2,5-dimethylthiophene (dpmt) (0.500 g, 1.04 mmol) synthesized in Example 1 in 30 mL of CH2Cl2,The mixture was stirred at room temperature for 5 h. Filter the reaction mixture,The solvent was removed under reduced pressure to give a pale yellow powder.The powder was dissolved in dichloromethane and recrystallized to give 0.615 g of yellow crystals.That is, the complex 1 was found to have a yield of 88.1%.

Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of Copper(I) bromide, 7787-70-4

Reference£º
Patent; Hubei University; Liu Li; Wei Qiong; (15 pag.)CN108997382; (2018); A;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”