Category: copper-catalyst

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.13395-16-9,Bis(acetylacetone)copper,as a common compound, the synthetic route is as follows.

Under a nitrogen atmosphere, copper acetylacetonate (0.9 mmol) was dissolved in 25 mL of dichloromethane, followed by addition of 1,10-phenanthroline (0.9 mmol). The reaction solution was stirred at room temperature for 48 hours and then concentrated in vacuo. The resulting solid was washed with 25 mL of n-pentane and recrystallized with dichloromethane and n-pentane to obtain Catalyst 3. The method of the invention produces this compound in a yield of up to 75%

The synthetic route of 13395-16-9 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Chinese Academy Of Sciences Lanzhou Chemical Physics Institute Suzhou Institute; Li Yuehui; Wang Hua; Dong Yanan; Ke Lisitian¡¤shanduofu; (20 pag.)CN108017557; (2018); A;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

13395-16-9, Bis(acetylacetone)copper is a copper-catalyst compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

A yellow solution of H4L (0.3mmol, 0.068g) in MeOH (5mL) was added to a green solution of Cu(acac)2 (0.30mmol, 0.079g) in dmf (20mL) which was stirred under heating at ~90C. The resulting dark green solution was refluxed for 3h and after cooled at r.t. was layered with Et2O. X-ray quality blue crystals of 1¡¤MeOH were formed after 3weeks. The identity of the crystals was confirmed by unit cell determination (a=b=17.414(1), c=16.751(1) A, alpha=beta=gamma=90, V=5079A3). The crystals were filtered off and dried under vacuum. (Yield: 0.056g, ?65%). The solid was analyzed as solvent free. C44H52Cu4N4O16 requires: C, 46.07; H, 4.57; N, 4.88. Found: C, 45.88; H, 4.54; N, 4.85%. FT-IR (KBr pellets, cm-1): 3413(br,s), 2912(w), 2873(w), 2828(w), 1625(vs), 1603(s), 1543(s), 1473(s), 1448(s), 1399(m), 1385(m), 1338(m), 1300(vs), 1254(m), 1206(m), 1160(m), 1129(m), 1083(m), 1029(s), 980(w), 936(w), 915(m), 875(m), 770(s), 683(s), 633(m), 586(m), 489(m), 454(m).

13395-16-9 Bis(acetylacetone)copper 2723615, acopper-catalyst compound, is more and more widely used in various.

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”

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.13395-16-9,Bis(acetylacetone)copper,as a common compound, the synthetic route is as follows.

General procedure: CZTS nanoparticles were synthesized at different temperatures(220-320 C) for 3 hours and for variousreaction times (2-5 hours) at 240 C, usinghigh-temperature arrested precipitation in the coordinatingsolvent, oleylamine (OLA).15 Under the reactiontime of 3 hours, the reactants for synthesis ofCZTS nanoparticles didn?t dissolve enough in OLA.

13395-16-9 Bis(acetylacetone)copper 2723615, acopper-catalyst compound, is more and more widely used in various.

Reference£º
Article; Kim, Donguk; Kim, Minha; Shim, Joongpyo; Kim, Doyoung; Choi, Wonseok; Park, Yong Seob; Choi, Youngkwan; Lee, Jaehyeong; Journal of Nanoscience and Nanotechnology; vol. 16; 5; (2016); p. 5082 – 5086;,
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

To 0.025 g (0.0296 mmol) of copper tetraphenylporphyrin in a mixture of 10 mL ofCHCl3 and 1mL of DMF was added 0.105 g (0.592 mmol) of NBS and stirred at roomtemperature for 10 h. The reaction mixture was evaporated to a minimum 10 mL ofDMF, H2O and NaClsolid was added. Dark brown precipitate was filtered off, washedwith water and dried, then chromatographed on Al2O3 with CHCl3, and precipitatedfrom C25OH. Yield: 68% (0.026 g, 0.0199 mmol). Mass spectrum, m/z (Irel, %) 1306.6(98) [M]+ was calculated for C44H20N4Br8Cu – 1307.5. UV-vis spectrum in CHCl3, lambda, nm(log epsilon)626 sh., 581 (4.33), 467 (5.21), 447 sh

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

Reference£º
Article; Chizhova, Natalya Vasil?evna; Maltceva, Olga Valentinovna; Zvezdina, Svetlana Veniaminovna; Mamardashvili, Nugzar Zhoraevich; Koifman, Oscar Iosifovich; Journal of Coordination Chemistry; vol. 71; 19; (2018); p. 3222 – 3232;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

660-60-6, Copper(II) stearate is a copper-catalyst compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: To a screw-cap reaction tube was added symmetrical N,N?-disubstituted guanidines 1a (0.2 mmol), PdCl2 (5 mol%, 1.8 mg), CuX2 (0.44 mmol). The reaction tube was evacuated and back-filled with CO (three times, balloon). PhCN (2 mL) was added using a syringe and the mixture was heated to the desired temperature with use of an oil bath. When the reaction was completed (detected by TLC), the mixture was cooled to room temperature and vented to discharge the excess CO. After the reaction was completed, the solvent was concentrated by evaporation in vacuo. The residue was purified by flash column chromatography on silica gel to afford the desired product Amides 6a with petroleum ether/ethyl acetate as the eluent.

660-60-6 Copper(II) stearate 93553, acopper-catalyst compound, is more and more widely used in various.

Reference£º
Article; Chang, Denghu; Zhu, Dan; Zou, Peng; Shi, Lei; Tetrahedron; vol. 71; 11; (2015); p. 1684 – 1693;,
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.7758-89-6,Cuprouschloride,as a common compound, the synthetic 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/0.1 M 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 Cuprouschloride 62652, acopper-catalyst compound, is more and more widely used in various.

Reference£º
Patent; Wishart, Neil; Ritter, Kurt; US2003/9034; (2003); A1;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

7758-99-8, Copper(II) sulfate pentahydrate is a copper-catalyst compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

[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.

7758-99-8 Copper(II) sulfate pentahydrate 24463, acopper-catalyst compound, is more and more widely used in various.

Reference£º
Patent; CHEMOCENTRYX, INC.; WO2003/105853; (2003); 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.6046-93-1,Copper(II) acetate hydrate,as a common compound, the synthetic route is as follows.

A mixed solvent of 75 ml of chlorobenzene and 50 ml of N,N-dimethylformamide (DMF) was added to a 250 ml three-neck distillation flask. Add 5,10,15,20-tetraphenylporphyrin (H2TPP) (0.50 g, 0.81 mmol) start stirring, after the solid is dissolved, add an appropriate amount of copper acetate monohydrate (Cu(OAc)2*H2O) (0.324 g 1.62 mmol). Put about 3g of potassium carbonate (K2CO3) in the alkali storage chamber, the mixture in the reaction kettle was heated to 150 C and kept under reflux. The progress of the reaction (UV-Vis) is monitored by thin layer chromatography (TLC) or ultraviolet visible absorption spectroscopy until the complete reaction of H2TPP is completed. The solvent is distilled off under vacuum. The remaining solid was dissolved in 150 ml of chloroform. Wash three times with 50 ml of water each time, then collect these liquids in a static layer. The organic layer was further washed three times with 50 ml of saturated sodium bicarbonate solution. Then dried with potassium sulfate (K2SO4), The solvent is distilled off under vacuum. The remaining solid was recrystallized from chloroform/heptane. A purple crystalline solid product of 0.526 g was obtained in a yield of 96%.

6046-93-1 Copper(II) acetate hydrate 165397, acopper-catalyst compound, is more and more widely used in various.

Reference£º
Patent; Guangzhou Lvying Environmental Protection Technology Co., Ltd.; Yao Shu; Chen Liangming; Qiao Nasen¡¤wudong; (8 pag.)CN109651381; (2019); A;,
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.13395-16-9,Bis(acetylacetone)copper,as a common compound, the synthetic route is as follows.

Cu(C5H7O2)2 (13.1 mg, 0.05 mmol) was solubilized in 5 mL of methanoland added to a 5 mL of methanolic solution of HL (24.0 mg,0.1 mmol). The mixture was stirred under reflux for 1 h. Dark greencrystals suitable for X-ray diffraction analysis were obtained after somedays from the mother liquor at room temperature. Yield: 22.9 mg(84.5%). Melting point: Decomposes after 260 C. Molar conductivity(1 mM, DMF): 0.35 Omega-1¡¤cm2¡¤mol-1 Elemental analysis calculated forC26H22O2N8Cu (%): C. 57.61; H. 4.09; N. 20.67. Found (%): C. 57.65; H.3.83; N. 20.64. IR bands (KBr, cm-1): nu(CeO) 1371; nu(C]N) 1580,1557; nu(NeN) 1160; rho(py) 735. ESI-MS [C26H23O2N8Cu]+ calcd./found(m/z)=542.1240, 542.1251.

The synthetic route of 13395-16-9 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Santiago, Pedro H.O.; Santiago, Mariana B.; Martins, Carlos H.G.; Gatto, Claudia C.; Inorganica Chimica Acta; vol. 508; (2020);,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

13395-16-9, Bis(acetylacetone)copper is a copper-catalyst compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: CZTS nanoparticles were synthesized at different temperatures(220-320 C) for 3 hours and for variousreaction times (2-5 hours) at 240 C, usinghigh-temperature arrested precipitation in the coordinatingsolvent, oleylamine (OLA).15 Under the reactiontime of 3 hours, the reactants for synthesis ofCZTS nanoparticles didn?t dissolve enough in OLA.

As the paragraph descriping shows that 13395-16-9 is playing an increasingly important role.

Reference£º
Article; Kim, Donguk; Kim, Minha; Shim, Joongpyo; Kim, Doyoung; Choi, Wonseok; Park, Yong Seob; Choi, Youngkwan; Lee, Jaehyeong; Journal of Nanoscience and Nanotechnology; vol. 16; 5; (2016); p. 5082 – 5086;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”