Day: November 24, 2020

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

An acetonitrile (10mL) solution of CuBr (0.019g, 0.132mmol) was added dropwise to a well stirred solution of 1 (0.028g, 0.066mmol) in dichloromethane (10mL) at room temperature. The reaction mixture was stirred for 4h, all the solvent was evaporated under vacuum and the residue obtained was washed with 2¡Á5mL of petroleum ether to afford an analytically pure yellow solid. Yield: 85% (0.04g). Mp: >270C. Anal. Calcd. for C20H30N4Br2Cu2O2P2¡¤CH3CN: C, 35.31; H, 4.44; N, 9.36%. Found: C, 34.72; H, 4.02; N, 9.81%.

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

Reference£º
Article; Ananthnag, Guddekoppa S.; Mague, Joel T.; Balakrishna, Maravanji S.; Journal of Organometallic Chemistry; vol. 779; (2015); p. 45 – 54;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

As a common heterocyclic compound, it belongs to quinuclidine compound,Quinuclidine-4-carboxylic acid hydrochloride,40117-63-3,Molecular formula: C8H14ClNO107,mainly used in chemical industry, its synthesis route is as follows.,7787-70-4

Triethyl phosphite (183g, 1.1 mol) was added to a suspension of copper(I) bromide (164.5 g, 1.15 mol) in toluene (500 ml). The mixture was heated at 80C for 3 h with stirring, then left to cool and settle. The clear solution was decanted from the solid residue and the solvent evaporated on a rotary evaporator at 60C, to provide copper(I) bromide triethyl phosphite complex as a clear colourless oil, 336g (94% crude yield).

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

Reference£º
Patent; ASTRAZENECA AB; ASTRAZENECA UK LIMITED; WO2006/67412; (2006); A1;,
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(II) trifluoromethanesulfonate, and cas is 34946-82-2, its synthesis route is as follows.,34946-82-2

The copper(II) complexes with terpy ligand, [Cu(terpy)(ClO4)2(H2O)] (1) and [Cu(terpy)2](CF3SO3)2¡¤2H2O (2), were synthesized by modification of a previously described method for the preparation of [Cu(terpy)(H2O)](CF3SO3)2 complex [42]. The solution of 1.0mmol of terpy (233.3mg) in 2.0mL of methanol for 1 and ethanol for 2 was added slowly under stirring to the solution containing 1.0mmol of the corresponding copper(II) salt (370.5mg of Cu(ClO4)2¡¤6H2O (1) and 361.7mg of Cu(CF3SO3)2 (2)) in 5.0mL of water. The reaction mixture was stirred at room temperature for 3h. The blue crystals of 1 and 2 suitable for single-crystal X-ray analysis were grown by slow evaporation of the resulting solutions at room temperature. These crystals were filtered off and dried at ambient temperature. The yield (calculated on the basis of terpy) was 73% (375.0mg) for 1 and 78% (337.1mg) for 2.

With the complex challenges of chemical substances, we look forward to future research findings about 34946-82-2,belong copper-catalyst compound

Reference£º
Article; Gli?i?, Biljana ?.; Nikodinovic-Runic, Jasmina; Ilic-Tomic, Tatjana; Wadepohl, Hubert; Veselinovi?, Aleksandar; Opsenica, Igor M.; Djuran, Milo? I.; Polyhedron; vol. 139; (2018); p. 313 – 322;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

7787-70-4, Copper(I) bromide is a copper-catalyst compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

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.

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

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”

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

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

Cu (CF3 SO3 )2 And 4 – (3 – (4H – 1,2, 4 – triazole -4 – yl) phenyl) – 4H – 1,2, 4 – triazole) (L) in a molar ratio of 1:1; L (0.0424 g, 0.2 mmol), Cu (CF3 SO3 )2 (0.0691 g, 0.2 mmol), H2 O (6 ml), CH3 CN (4 ml), water heat 160 o C three days after cooling to room temperature. After operates the cauldron X – ray single crystal diffraction analysis is yellow rod-like crystal. Yield: 35% (calculated on the basis of L). Elemental analysis (C33 H26 Cu3 F9 N18 O10 S3 ) Theoretical value (%): C, 30.67; H, 2.03; N, 19.51. The measured value: C, 30.69; H, 2.06; N, 19.59. We also tried other proportions, for example Cu (CF3 SO3 )2 And L in a molar ratio of 2:1, irrespective of the length of the water heat reaction time, are not crystalline compound. Therefore Cu (CF3 SO3 )2 And L in a molar ratio of 1:1 is the best reaction mixture ratio.

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

Reference£º
Patent; Tianjin Normal University; Wang, Ying; (12 pag.)CN104557982; (2017); B;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Copper(I) bromide, cas is 7787-70-4, it is a common heterocyclic compound, the copper-catalyst compound, its synthesis route is as follows.,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, 2.1 mmol 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-Martn, Enrique; Lemus, Luis; Costamagna, Juan; Faras, Liliana; Rossi, Miriam; Caruso, Francesco; Guerrero, Juan; Polyhedron; vol. 85; (2015); p. 405 – 411;,
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”

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

To a solution of ligand L1 (50 mg, 0.2 mmol) in ethyl acetate(3 mL) was added a saturated solution of copper(II) trifluoromethanesulfonate(Cu(OTf)2) in ethyl acetate (2 mL).A blue-green precipitate appeared within 10 min, whichwas transformed into green-brown hexagonal crystalsduring slow evaporation of the solvent on standing withair contact. The crystals were collected by filtration withsuction, washed with a small volume of ethyl acetate toremove co-precipitated Cu(OTf)2. Yield: 85 mg (95%); M.p.272-274C. – IR (KBr): = 3262 m br (NH), 3147 w, 3103w, 1645 m, 1597 s, 1296 vs, 1253 vs, 1228 s, 1148 s, 1076 m,1059 m, 1029 vs, 757 w, 729 s, 629 s, 575 m, 520 m cm-1. -MS ((+)-MALDI-TOF): m/z (%) = 666.24 (100) [M-CF3SO3]+,516.26 (15) [M-2CF3SO3-H]+, 228.16 (74) [L1+H]+. – Anal. forC26H26CuF6N10O6S2 (816.21): calcd. C 38.26, H 3.21, N 17.16;found C 38.25, H 3.49, N 16.92.

With the rapid development of chemical substances, we look forward to future research findings about Copper(II) trifluoromethanesulfonate

Reference£º
Article; Schroeder, Sven; Frey, Wolfgang; Maas, Gerhard; Zeitschrift fur Naturforschung, B: Chemical Sciences; vol. 71; 6; (2016); p. 683 – 696;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

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

The ligand (50.0 mg, 0.11 mmol) was added to a suspension of copper(II) halogenide (0.11 mmol) in methanol (3 ml). The mixture was stirred at r. t. for 16 h. The precipitate was then filtered off and dried in vacuo. The pure compounds were obtained by recrystallization from dichloromethane and pentane.

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

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”