Category: copper-catalyst

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

A solution of Cu(OTf)2 (90.0 mg, 0.249 mM, OTf = trifluormethansulfonate) in methanol was added to a solution of HLpz (53.5 mg,0.250 mM) and triethylamine (25.0 mg, 0.250 mM) in methanol, affording a dark green solution. A solution of excess 4,4-bipyridine (4,4-bipy) was layered on the above solution, from which purple crystals of 1 suitable for X-ray analysis were obtained. Yield: 86 mg, 68%. Anal. Calcd for C34H26Cu2F6N10O8S2: C, 40.52; H, 2.60; N, 13.90. Found: C, 40.27;H, 2.53; N, 13.63. FTIR (KBr): 3447, 1647, 1416, 1380, 1291, 1245, 1224, 1158, 1033,816, 772, 638, 518 cm-1. ESI-MS (MeOH): m/z = 276 [Cu(Lpz)]+, 432 [Cu(Lpz)(4,4-bipy)]+, 490 [Cu(Lpz)2 + H]+.

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

Reference£º
Article; Houser, Robert P.; Wang, Zhaodong; Powell, Douglas R.; Hubin, Timothy J.; Journal of Coordination Chemistry; vol. 66; 23; (2013); p. 4080 – 4092;,
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 solution ofTX-CH2COOH (1 g, 3.7 mmol) in distilled water (50 mL), was addedNaOH (148 mg, 3.7 mmol) to give sodium thioxanthone carboxylate (Na+TX-CH2COO-). Tothis solution Cu(OTf)2 (670 mg, 1.85 mmol) was added upon whichCu(TX)2 formed as a green precipitate. The resultant was separatedby filtration and dried in vacuo to obtain a greensolid. Yield 62%. Elementalanalysis; Calculated: C 66.90%; H 3.37%; O 17.82%; S 11.91%. Found: C 61.13%, H4.75%, O 18.97, S 14.25%. Melting point: 232 C., 34946-82-2

34946-82-2 Copper(II) trifluoromethanesulfonate 2734996, acopper-catalyst compound, is more and more widely used in various fields.

Reference£º
Article; Dadashi-Silab, Sajjad; Yagci, Yusuf; Tetrahedron Letters; vol. 56; 46; (2015); p. 6440 – 6443;,
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.

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

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

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”

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

L (0.0424 g, 0.2 mmol), Cu (CF3SO3)2(0.0691g,0.2mmol)H2O (6 mL), CH3CN (4 mL), water and heat 100Oslow C down to room temperature after three days.After opening the autoclave there for X- ray diffraction analysis of the yellow rod-like crystals.Yield: 35%

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; (10 pag.)CN104557986; (2016); B;,
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.

The copper tetraphenyl porphyrinssynthesised as above was converted into itsoctabromo derivative by the addition of liquidbromine (1.2ml)in chloroform(50ml) to a solution ofCu(TPP)(0.50g) in chloroform:carbon tetrachloride(1:1 V/V) (500ml) in a conical flask. Bromine wasadded dropwise and slowly over a period of halfhour, at room temperature. The contents were stirredfor 4hours, followed by addition of pyridine 2.4mlin 40ml mixture of CHCl3:CCl4in 1:1 ratio. Theaddition took about half hour and stirring continuedfor 12hours. The bromination process wasmonitored by UV-visible spectroscopy to ensurecomplete bromination. The excess bromine was destroyed byaddition of sodium metasulphite (200ml 20% aq.solution) to the system. The organic layer wasseparated using a separating funnel and the solutionwas dried over anhydrous sodium sulphate. Theevaporation of solvent under reduced pressureresulted a green solid of copper octabromoteraphenylporphyrin [Cu(OBTPP)]. The solid was dissolved inminimum amount of chloroform and columnchromatography was done. The first fraction comingout of the column was collected. The removal of solventyielded copper octabromotetraphenyl porphyrin(3)in purified form, yield (75%).

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; Raikwar, Kalpana; Oriental Journal of Chemistry; vol. 31; 2; (2015); p. 1195 – 1200;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

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

Chloro[l ,3-bis(2,6-di-i-propylphenyl)imidazol-2-ylidene]copper(I) (121.9 mg, 0.25 mmol) and silver triflate (64.2 mg, 0.25 mmol) were mixed under nitrogen in 25 mL flask and 10 mL of dry THF were added. Reaction mixture was stirred at RT for 30 minutes. Solution of 1 , 10-phenanthroline (45.05 mg, 0.25 mmol) in dry THF (5 mL) was added. Reaction mixture turned yellow and was stirred at RT overnight. Resulting mixture was filtered through Celite and solvent was evaporated on rotovap. Recrystallization from CH2Ch by vapor diffusion of Et20 gave 120 mg (61.4%) of yellow crystals. Anal, calcd. for C40H44CUF3N4O3S: C, 61.48; H, 5.68; N, 7.17; Found: C, 61.06; H, 5.61; N, 7.14. Structure was confirmed by IH-NMR spectrum of [(IPR)Cu(phen)]OTf (CDCb, 400MHz).

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; 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”

13395-16-9, 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. Bis(acetylacetone)copper, cas is 13395-16-9,the copper-catalyst compound, it is a common compound, a new synthetic route is introduced below.

A yellow solution of H4L (0.30mmol, 0.068g) in dmf (6mL) was added to a turquoise solution of Cu(acac)2 (0.30mmol, 0.079g) in dmf (20mL). The immediately formed green solution was refluxed for 3h and left for slow evaporation. X-ray quality blue crystals of 3¡¤1.5dmf were formed after 2months, which were filtered off and dried under vacuum. (Yield: 0.053g, ?60%). The solid was analyzed as solvent free. C44H56Cu4N4O18 requires: C, 44.67; H, 4.77; N, 4.73%. Found: C, 44.49; H, 4.74; N, 4.70. FT-IR (KBr pellets, cm-1): 3553(s), 3477(s), 3414(s), 1638(s), 1617(vs), 1578(s), 1553(s), 1533(s), 1462(w), 1413(m), 1384(m), 1355(s), 1275(s), 1189(s), 1020(s), 937(s), 782(s), 684(m), 653(w), 613(s), 480(m), 455(s).

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 Bis(acetylacetone)copper, 13395-16-9

Reference£º
Article; Lazarou, Katerina N.; Savvidou, Aikaterini; Raptopoulou, Catherine P.; Psycharis, Vassilis; Polyhedron; vol. 152; (2018); p. 125 – 137;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

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

EXAMPLE 1 N2-(4-Bromophenyl)-5-trifluoromethyl-1,3-benzoxazol-2-amine 4-Bromophenyl isothiocyanate (1.667 g, 7.785 mmol) was added to a solution of 2-amino-4-trifluoromethylphenol (1.379 g, 7.785 mmol) in tetrahydrofuran (THF) (100 mL) and the reaction was stirred at room temperature for about 16 hours then at about 50 C. for about another 5 hours. Copper (I) chloride (0.771 g, 7.785 mmol) and triethylamine (1.08 mL, 7.785 mmol) were added, and the mixture was stirred at room temperature for about 72 hours and then at about 50 C. for about another 18 hours. Additional copper (I) chloride (0.385 g) was added and the reaction was stirred at about 60 C. for about another 2 hours. The reaction was concentrated under reduced pressure, dissolved in methanol (200 mL), filtered through a pad of diatomaceous earth and the solvent removed in vacuo to afford N2-(4-bromophenyl)-5-trifluoromethyl-1,3-benzoxazol-2-amine as a brown solid (3.90 g, 140% of theory); RP-HPLC Rt 17.627 min, 77% purity (5% to 85% acetonitrile/0.1M aqueous ammonium acetate, buffered to pH 4.5, over 20 min at 1 mL/min; lambda=254 nm; Waters Deltapak C18, 300 A, 5 mum, 150*3.9 mm column); and m/z 354.9 and 356.9 (M-H)-.

7758-89-6, 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.,7758-89-6 ,Cuprouschloride, other downstream synthetic routes, hurry up and to see

Reference£º
Patent; Wishart, Neil; Rudolph, Alena; Ritter, Kurt; US2003/109714; (2003); A1;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

142-71-2, 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) acetate, cas is 142-71-2,the copper-catalyst compound, it is a common compound, a new synthetic route is introduced below.

Copper tetraphenyl porphyrin was synthesised by taking tetra phenyl porphyrin[H2(TPP)]16(500mg) in chloroform(100ml).Copper(II) acetate(200mg) in glacial aceticacid(50ml) was added to the above solution andthe mixture was refluxed for 2hrs. The contents wereconcentrated to a volume of about 50-60ml andcooled to room temperature which resulted in crudecopper-tetraphenyl porphyrin Cu(TPP) (about450mg). The crude product was purified by columnchromatography using neutral alumina andchloroform as eluent. On elution the unreactedtetraphenyl porphyrin was eluted out first, followedby pure Cu(TPP). The chloroform fraction containingCu(TPP) was concentrated to obtain pure crystalsof Cu(TPP)[2]. The formation of Cu(TPP) wasmonitored by UV-visible spectroscopy which givepeaks-around 580, 541 and 417nm respectivelyconfirming the formation of Cu(TPP) (yield=400mg).

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) acetate, 142-71-2

Reference£º
Article; Raikwar, Kalpana; Oriental Journal of Chemistry; vol. 31; 2; (2015); p. 1195 – 1200;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

7758-99-8, 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) sulfate pentahydrate, cas is 7758-99-8,the copper-catalyst compound, it is a common compound, a new synthetic route is introduced below.

[0146] Sodium nitrite (2.35 g, 34.13mmol) solution (40 mL) was added dropwise to 4- Chloro-2-fluoro aniline (4. [5G,] 31mmol) in 170 mL HBr [AT-10C] bath temperature, then the mixture was stirred for 30 min at-10C bath temperature. In parallel, copper sulfate (10.22g, 24. [29MMOL)] and sodium bromide (3.79 g, 36. [8MMOL)] were mixed and the reaction mixture was heated at [60C] for 30 min. Then sodium sulfite (2.66g, 21. [2MMOL)] was added into this copper sulfate reaction mixture and heated for [95C] for 30 min. The reaction mixture was cooled to room temperature and solid formed was washed with water to afford white solid cuprous bromide. The diazonium salt was portion wise added into the freshly prepared cuprous bromide in 40 mL HBr [AT-10C] bath temperature and the reaction mixture was then warmed to room temperature. The reaction mixture was heated at [55C] for 20 min, cooled and then extracted with ethyl acetate three times. The combined organic layer was washed with water and saturated brine solution, dried over sodium sulfate and concentrated. The crude material was purified by column chromatography (5: 95 ethyl acetate: pet ether) to afford solid product.

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) sulfate pentahydrate, 7758-99-8

Reference£º
Patent; CHEMOCENTRYX, INC.; WO2003/105853; (2003); A1;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”