Tag: M.W:100-200

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

General procedure: A solution of Cu(OAc)2¡¤H2O (4.6 mmol) in methanol (10 mL) was added to a solution of corresponding porphyrin (1.15 mmol) in methylene chloride (50 mL). The resulting mixture was stirred flor 1.5 h at room temperature with TLC monitoring (CHCl3-hexane 1:2). Then the reaction mixture was poured into water and extracted with methylene chloride. The organic layer was dried over Na2SO4, and the solvent was removed under reduced pressure. The residue was used without purification. 5,10,15,20-(tetraphenylporphyrinato)copper(II) (13) [56] (757 mg,yield 97%). UV-Vis (CH2Cl2) >max, (j10-3) nm: 414 (611), 539 (29).APCI-MS Found: [M]+ 676.16; ?C44H28CuN4? requires [M]+ 676.26.

With the synthetic route has been constantly updated, we look forward to future research findings about Copper(II) acetate hydrate,belong copper-catalyst compound

Reference£º
Article; Ol’shevskaya, Valentina A.; Alpatova, Viktoriya M.; Radchenko, Alexandra S.; Ramonova, Alla A.; Petrova, Albina S.; Tatarskiy, Victor V.; Zaitsev, Andrei V.; Kononova, Elena G.; Ikonnikov, Nikolay S.; Kostyukov, Alexey A.; Egorov, Anton E.; Moisenovich, Mikhail M.; Kuzmin, Vladimir A.; Bragina, Natalya A.; Shtil, Alexander A.; Dyes and Pigments; vol. 171; (2019);,
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

General procedure: A solution of Cu(OAc)2¡¤H2O (4.6 mmol) in methanol (10 mL) was added to a solution of corresponding porphyrin (1.15 mmol) in methylene chloride (50 mL). The resulting mixture was stirred flor 1.5 h at room temperature with TLC monitoring (CHCl3-hexane 1:2). Then the reaction mixture was poured into water and extracted with methylene chloride. The organic layer was dried over Na2SO4, and the solvent was removed under reduced pressure. The residue was used without purification. 5,10,15,20-(tetraphenylporphyrinato)copper(II) (13) [56] (757 mg,yield 97%). UV-Vis (CH2Cl2) >max, (j10-3) nm: 414 (611), 539 (29).APCI-MS Found: [M]+ 676.16; ?C44H28CuN4? requires [M]+ 676.26., 6046-93-1

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

Reference£º
Article; Ol’shevskaya, Valentina A.; Alpatova, Viktoriya M.; Radchenko, Alexandra S.; Ramonova, Alla A.; Petrova, Albina S.; Tatarskiy, Victor V.; Zaitsev, Andrei V.; Kononova, Elena G.; Ikonnikov, Nikolay S.; Kostyukov, Alexey A.; Egorov, Anton E.; Moisenovich, Mikhail M.; Kuzmin, Vladimir A.; Bragina, Natalya A.; Shtil, Alexander A.; Dyes and Pigments; vol. 171; (2019);,
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

meso-Tetraphenylporphyrin (TPP)(2 g, 3.25 mmol) was dissolved in CH2Cl2 (160 mL) and methanol (50 mL). Cu(OAc)2¡¤H2O (1.2 g,5.85 mmol) was added and the mixture was heated to reflux for 2 h until all starting material wasconsumed (TLC, UV-vis). Solvents were evaporated to give a red-purple residue that was filteredthrough a short plug of silica. After filtration, the product 3 was obtained as a dark purple sparklingsolid (2.2 g, 3.25 mmol, 99%), 6046-93-1

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

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”

7787-70-4, A common heterocyclic compound, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc., below Introduce a new synthetic route., 7787-70-4

To a solution of CuBr (0.0135 g, 0.094 mmol) in 10 mL of acetonitrile was added dropwise 1 (0.03 g, 0.094 mmol) in dichloromethane (5 mL) at room temperature. The reaction mixture was stirred for 4 h. The solvent was removed under reduced pressure to get 6 as a pale yellow solid. Analtyically pure product of 6 was obtained by recrystallizing the crude product in a 1:2 mixture of dichloromethane and petroleum ether. Yield: 81% (0.035 g). Mp: 158-160 C. Anal. Calc. for C42H44Cu2Br2N2P2: C, 54.66; H, 4.80; N, 3.03. Found: C, 54.95; H, 4.85; N, 2.88%. 1H NMR (400 MHz, CDCl3): delta 7.52-6.83 (m, Ar, 28H), 3.50 (s, CH2, 4H), 2.42 (s, NMe2, 12H). 31P{1H} NMR (162 MHz, CDCl3): delta -16.2 (br s). MS (EI): m/z 845.22 [M-Br]+.

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; Ananthnag, Guddekoppa S.; Edukondalu, Namepalli; Mague, Joel T.; Balakrishna, Maravanji S.; Polyhedron; vol. 62; (2013); p. 203 – 207;,
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 rapid development of chemical substances, we look forward to future research findings about 6046-93-1

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”

Copper(I) bromide, A common heterocyclic compound, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc., below Introduce a new synthetic route. 7787-70-4

7787-70-4, General procedure: To a dry and degassed dichloromethane (10mL) solution of 2,2?-dipyridylamine (1mmol) was added CuX (1mmol). The mixture was kept stirring under nitrogen at ambient temperature. After 1h, a yellow precipitate was formed. To the resulting suspension was added dropwise with stirring a solution of triphenylphosphine (1mmol) in dichloromethane (5mL). The mixture was stirred for another 4h, and then the solvent was evaporated to give a white or yellow residue. The solid residue was extracted with 10mL absolute dichloromethane under the nitrogen atmosphere while the extract was filtered and transferred to a nitrogen-protected flask. 10mL hexane was layered above the resulting solution afforded crystals of the complexes, which were washed with hexane.

7787-70-4 Copper(I) bromide 24593, acopper-catalyst compound, is more and more widely used in various fields.

Reference£º
Article; Wu, Fengshou; Tong, Hongbo; Wang, Kai; Wang, Zheng; Li, Zaoying; Zhu, Xunjin; Wong, Wai-Yeung; Wong, Wai-Kwok; Journal of Photochemistry and Photobiology A: Chemistry; vol. 318; (2016); p. 97 – 103;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 7787-70-4, Copper(I) bromide. This compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.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 paragraph descriping shows that 7787-70-4 is playing an increasingly important role.

Reference£º
Patent; Pfizer Inc; US5968950; (1999); A;,
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

General procedure: The complexes were typically obtained from the reaction of the copper halide (CuX) with the appropriate camphor ligand in THF (3 mL) upon stirring for ca. 18 h at room temperature. Filtration of the precipitate, washing with n-pentane (ca. 6mL) and drying under vacuum affords the Cu(I) complex.

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

Reference£º
Article; Fernandes, Tiago A.; Mendes, Filipa; Roseiro, Alexandra P.S.; Santos, Isabel; Carvalho, M. Fernanda N.N.; Polyhedron; vol. 87; (2015); p. 215 – 219;,
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, General procedure: To a solution of (S,S)-iPr-pheboxH (0.051g, 0.173mmol) in dichloromethane (15mL), the corresponding copper(I) salt CuX (X=Cl, Br, I) (0.347mmol) was added and the mixture stirred at room temperature during 24h. Then, the reaction mixture was filtered via cannula, concentrated under reduced pressure to ca. 2mL and diethyl ether/n-hexane (1:2) (30mL) was added. The resulting solid was washed with n-hexane (3¡Á5mL) and vacuum-dried.

As the paragraph descriping shows that 7787-70-4 is playing an increasingly important role.

Reference£º
Article; Vega, Esmeralda; De Julian, Eire; Borrajo, Gustavo; Diez, Josefina; Lastra, Elena; Gamasa, M. Pilar; Polyhedron; vol. 94; (2015); p. 59 – 66;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

7787-70-4, A common heterocyclic compound, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc., below Introduce a new synthetic route., 7787-70-4

To a solution of CuBr (0.0135 g, 0.094 mmol) in 10 mL of acetonitrile was added dropwise 1 (0.03 g, 0.094 mmol) in dichloromethane (5 mL) at room temperature. The reaction mixture was stirred for 4 h. The solvent was removed under reduced pressure to get 6 as a pale yellow solid. Analtyically pure product of 6 was obtained by recrystallizing the crude product in a 1:2 mixture of dichloromethane and petroleum ether. Yield: 81% (0.035 g). Mp: 158-160 C. Anal. Calc. for C42H44Cu2Br2N2P2: C, 54.66; H, 4.80; N, 3.03. Found: C, 54.95; H, 4.85; N, 2.88%. 1H NMR (400 MHz, CDCl3): delta 7.52-6.83 (m, Ar, 28H), 3.50 (s, CH2, 4H), 2.42 (s, NMe2, 12H). 31P{1H} NMR (162 MHz, CDCl3): delta -16.2 (br s). MS (EI): m/z 845.22 [M-Br]+.

As the paragraph descriping shows that 7787-70-4 is playing an increasingly important role.

Reference£º
Article; Ananthnag, Guddekoppa S.; Edukondalu, Namepalli; Mague, Joel T.; Balakrishna, Maravanji S.; Polyhedron; vol. 62; (2013); p. 203 – 207;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”