Category: 7789-45-9

Obstals, Fabian; Witzdam, Lena; Garay-Sarmiento, Manuela; Kostina, Nina Yu.; Quandt, Jonas; Rossaint, Rolf; Singh, Smriti; Grottke, Oliver; Rodriguez-Emmenegger, Cesar published an article in 2021. The article was titled 《Improving Hemocompatibility: How Can Smart Surfaces Direct Blood To Fight against Thrombi》, and you may find the article in ACS Applied Materials & Interfaces.Formula: Br2Cu The information in the text is summarized as follows:

Nature utilizes endothelium as a blood interface that perfectly controls hemostasis, preventing the uncontrolled formation of thrombi. The management of pos. and neg. feedback that finely tunes thrombosis and fibrinolysis is essential for human life, especially for patients who undergo extracorporeal circulation (ECC) after a severe respiratory or cardiac failure. The exposure of blood to a surface different from healthy endothelium inevitably initiates coagulation, drastically increasing the mortality rate by thromboembolic complications. In the present study, an ultrathin antifouling fibrinolytic coating capable of disintegrating thrombi in a self-regulated manner is reported. The coating system is composed of a polymer brush layer that can prevent any unspecific interaction with blood. The brushes are functionalized with a tissue plasminogen activator (tPA) to establish localized fibrinolysis that solely and exclusively is active when it is required. This interactive switching between the dormant and active state is realized through an amplification mechanism that increases (pos. feedback) or restores (neg. feedback) the activity of tPA depending on whether a thrombus is detected and captured or not. Thus, only a low surface d. of tPA is necessary to lyse real thrombi. Our work demonstrates the first report of a coating that self-regulates its fibrinolytic activity depending on the conditions of blood. In the part of experimental materials, we found many familiar compounds, such as Cupric bromide(cas: 7789-45-9Formula: Br2Cu)

Some reported applications of Cupric bromide(cas: 7789-45-9) are: catalyst in cross coupling reactions; co-catalyst in Sonogashira coupling; lewis acid in enantioselective addition of alkynes.Formula: Br2Cu

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Name: Cupric bromideIn 2020 ,《Sodium Vapor Active Element Excited by Nanosecond Optical Pulses》 was published in Atmospheric and Oceanic Optics. The article was written by Evtushenko, G. S.; Petukhov, T. D.; Sukhanov, V. B.; Troitskii, V. O.; Kuryak, A. N.; Trigub, M. V.. The article contains the following contents:

A possibility of lasing at resonant transitions upon active medium excitation by nanosecond pulses of different energy and spectrum has been exptl. studied. The medium was pumped using a dye laser and a CuBr laser. The emission on sodium D lines was detected when pumping by yellow CuBr laser light. The experimental process involved the reaction of Cupric bromide(cas: 7789-45-9Name: Cupric bromide)

Some reported applications of Cupric bromide(cas: 7789-45-9) are: catalyst in cross coupling reactions; co-catalyst in Sonogashira coupling; lewis acid in enantioselective addition of alkynes.Name: Cupric bromide

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Application of 7789-45-9In 2019 ,《Controlled Growth of Ultra-Thick Polymer Brushes via Surface-Initiated Atom Transfer Radical Polymerization with Active Polymers as Initiators》 appeared in Macromolecular Rapid Communications. The author of the article were Zeng, Yiyang; Xie, Lei; Chi, Fangting; Liu, Dejian; Wu, Haoyan; Pan, Ning; Sun, Guangai. The article conveys some information:

Polymer brushes exhibit functionalities useful for a large number of applications. Often these functionalities only emerge when the polymer brushes have a desired thickness. Here, a significant breakthrough is achieved in the synthesis of ultra-thick polymer brushes using polymer initiators in the approach of surface-initiated atom transfer radical polymerization, yielding polymer brushes with a controllable thickness up to 15.1 μm. This is reportedly the thickest polymer brush ever synthesized. This approach is applicable for several monomers such as acrylonitrile, Me acrylate, and styrene, and for other types of polymer substrates such as fibers. In the experiment, the researchers used many compounds, for example, Cupric bromide(cas: 7789-45-9Application of 7789-45-9)

Some reported applications of Cupric bromide(cas: 7789-45-9) are: catalyst in cross coupling reactions; co-catalyst in Sonogashira coupling; lewis acid in enantioselective addition of alkynes.Application of 7789-45-9

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

《Influence of HMTA ligand in MMA AGET ATRP emulsion polymerization》 was written by Awad, Mohammed; Dhib, Ramdhane; Duever, Thomas. Application In Synthesis of Cupric bromide And the article was included in Journal of Applied Polymer Science in 2020. The article conveys some information:

Interactions of hexamethylenetetramine ligand in atom transfer radical polymerization initiated by activator generated by electron transfer were studied. Polymerization of Me methacrylate was done using two-step exptl. procedure in 2 L emulsion batch reactor at 50, 60, and 80°C. The selection of reactant ratios was quite challenging for a reactor of this size. Replicate runs were conducted for data reproducibility purpose. Gravimetry method and gel permeation chromatog. were used to determine monomer conversion, Mn, and PDI of polymer samples. PMMA produced was also characterized by means of dynamic light scattering, Fourier-transform IR spectroscopy and NMR spectroscopy. Results showed high monomer conversion up to 93% and Mn ranging 243-274 kg/mol with PDI from 1.45 to 1.60. Besides, combining HMTA with sodium dodecyl sulfate, an anionic surfactant, a well-controlled polymer with a lower Mn of 201 kg/mol and PDI of 1.56 was obtained in 3 h reaction time. The experimental process involved the reaction of Cupric bromide(cas: 7789-45-9Application In Synthesis of Cupric bromide)

Cupric bromide(cas: 7789-45-9) can be used as reducing agent, when complexed by three molecules of pyridine initiators for the controlled polymerization of styrene, methyl acrylate and methyl methacrylate.Application In Synthesis of Cupric bromide

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

In 2022,Omoregie, Helen Oluwatola; Eseola, Abiodun Omokehinde; Akong, Raymond Akong published an article in Journal of Molecular Structure. The title of the article was 《Mixed ligand complexes of copper(II) with benzoyltrifluoroacetone, 1,10-phenanthroline and 2,2′-bipyridine: Structure, spectroscopic and antimicrobial properties》.Quality Control of Cupric bromide The author mentioned the following in the article:

Mixed ligand copper(II) complexes of Benzoyltrifluoroacetone (BTAH) with 1,10-phenanthroline (Phen) and 2,2′-bipyridine (Bipy) were synthesized and characterized. These complexes, namely [Cu(BTA)(Phen)(NO3)] (1), [Cu(BTA)(Phen)Cl] (2), [Cu(BTA)(Bipy)(NO3)] (3), [Cu(BTA)(Bipy)Cl] (4), and [Cu(BTA)(Phen)Br]•H2O (5), were characterized by elemental anal.; spectral; magnetic and molar conductance measurements; mass spectrometry; thermal anal. and antimicrobial susceptibility testing. The structures of 1 and 4 contained square pyramidal copper(II) environments. The microbiostatic activity revealed that the copper complexes showed pronounced activity in all the tested bacteria, except in Klebsiella pneumonia, Escherichia coli and Salmonella enterica in which some of the complexes were moderately active on the bacterial strains. In addition to this study using Cupric bromide, there are many other studies that have used Cupric bromide(cas: 7789-45-9Quality Control of Cupric bromide) was used in this study.

Some reported applications of Cupric bromide(cas: 7789-45-9) are: catalyst in cross coupling reactions; co-catalyst in Sonogashira coupling; lewis acid in enantioselective addition of alkynes.Quality Control of Cupric bromide

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

HPLC of Formula: 7789-45-9In 2021 ,《Distinct Sustainable Carbon Nanodots Enable Free Radical Photopolymerization, Photo-ATRP and Photo-CuAAC Chemistry》 was published in Angewandte Chemie, International Edition. The article was written by Kuetahya, Ceren; Zhai, Yingxiang; Li, Shujun; Liu, Shouxin; Li, Jian; Strehmel, Veronika; Chen, Zhijun; Strehmel, Bernd. The article contains the following contents:

Carbon nanodots (CDs) originating from different biomass result in different activities to sensitize photo-ATRP and photo-CuAAC reaction protocols with visible light. Free radical polymerization of tri(propylene glycol)diacrylate also exhibited a good efficiency using CDs in combination with an iodonium salt employing LEDs emitting either at 405 nm, 525 nm or 660 nm. Photo-ATRP experiments confirmed controlled polymerization conditions using CuII at the ppm scale resulting in dispersities between 1.06 to 1.10. Chain end fidelity was successfully provided by chain extension and block copolymerization addnl. approving the living feature of polymerization using a CD synthesized from lac dye comprising olefinic moieties in the originating biomass. By global anal., time resolved fluorescence measurements indicated the appearance of several emitting species contributing to the reactivity of the excited states. Different cytotoxic response appeared following the answer of MCF-10A cells in a flow cytometry assay; that is 400μg mL-1. Thus, cell viability was greater 80% in the case of CD-2-CD-5 while that of CD-1 was close to 70%. In addition to this study using Cupric bromide, there are many other studies that have used Cupric bromide(cas: 7789-45-9HPLC of Formula: 7789-45-9) was used in this study.

Cupric bromide(cas: 7789-45-9) can be used as reducing agent, when complexed by three molecules of pyridine initiators for the controlled polymerization of styrene, methyl acrylate and methyl methacrylate.HPLC of Formula: 7789-45-9

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

In 2019,Russian Journal of Physical Chemistry A included an article by Koledina, K. F.; Gubaidullin, I. M.; Koledin, S. N.; Baiguzina, A. R.; Gallyamova, L. I.; Khusnutdinov, R. I.. Product Details of 7789-45-9. The article was titled 《Kinetics and Mechanism of the Synthesis of Benzylbutyl Ether in the Presence of Copper-Containing Catalysts》. The information in the text is summarized as follows:

The reaction of the synthesis of benzylbutyl ether via the intermol. dehydration of benzyl and Bu alcs. under the action of copper-containing catalysts is studied by math. means. The mechanism of the reaction was proposed, and the values of kinetic parameters are determined A comparative anal. of the activation energies of possible stages of chem. conversions is performed, and possible routes of the reactions and the catalytic cycles of reactions are determined Variations in stage rates and the concentrations of all substances participating in the reaction are analyzed. The experimental part of the paper was very detailed, including the reaction process of Cupric bromide(cas: 7789-45-9Product Details of 7789-45-9)

Some reported applications of Cupric bromide(cas: 7789-45-9) are: catalyst in cross coupling reactions; co-catalyst in Sonogashira coupling; lewis acid in enantioselective addition of alkynes.Product Details of 7789-45-9

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

In 2019,Macromolecular Chemistry and Physics included an article by Zaborniak, Izabela; Chmielarz, Pawel. Application In Synthesis of Cupric bromide. The article was titled 《Temporally Controlled Ultrasonication-Mediated Atom Transfer Radical Polymerization in Miniemulsion》. The information in the text is summarized as follows:

Due to the increasing requirement for more environmentally and industrially relevant approaches in macromols. synthesis, ultrasonication-mediated atom transfer radical polymerization (sono-ATRP) in miniemulsion media is applied for the first time to obtain precisely defined poly(Bu acrylate) (PBA) and poly(Me methacrylate) (PMMA) homopolymers, and poly(Bu acrylate)-block-poly(tert-Bu acrylate) (PBA-b-PtBA) and poly(Bu acrylate)-block-poly(Bu acrylate) (PBA-b-PBA) copolymers. It is demonstrated in the reaction setup with strongly hydrophilic catalyst copper(II) bromide/tris(2-pyridylmethyl)amine (CuIIBr2/TPMA) responsible for two principal mechanisms – interfacial and ion-pair catalysis reflecting single-catalyst approach. This solution turns out to be an excellent tool in controlled preparation of well-defined polymers with narrow mol. weight distribution (up to ETH = 1.28) and preserves chain-end functionality (DCF = 0.02% to 0.32%). Temporal control over the polymer chain growth is successfully conducted by turning the ultrasonication on/off. Taking into consideration long OFF stage (92.5 h) during ultrasonication-induced polymerization in miniemulsion, synthesis is efficiently reinitiated without any influence on controlled characteristics maintaining the precise structure of received PBA homopolymers, confirmed by narrow mol. weight distribution (ETH = 1.26) and high retention of chain-end functionality (DCF = 0.01%). This procedure constitutes an excellent simple and eco-friendly approach in preparation of functional polymeric materials.Cupric bromide(cas: 7789-45-9Application In Synthesis of Cupric bromide) was used in this study.

Cupric bromide(cas: 7789-45-9) can be used as reducing agent, when complexed by three molecules of pyridine initiators for the controlled polymerization of styrene, methyl acrylate and methyl methacrylate.Application In Synthesis of Cupric bromide

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Safety of Cupric bromideIn 2020 ,《Synthesis of sugar-based macromolecules via sono-ATRP in miniemulsion》 was published in Polymers for Advanced Technologies. The article was written by Zaborniak, Izabela; Surmacz, Karolina; Chmielarz, Pawel. The article contains the following contents:

Ultrasound-mediated atom transfer radical polymerization (sono-ATRP) in miniemulsion media is used for the first time for the preparation of complex macromol. architectures by a facile two-step synthetic route. Initially, esterification reaction of sucrose or lactulose with α-bromoisobutyryl bromide (BriBBr) is conducted to receive multifunctional ATRP macroinitiators with 8 initiation sites, followed by polymerization of Bu acrylate (BA) forming arms of the star-like polymers. The brominated lactulose-based mol. was examined as an ATRP initiator by determining the activation rate constant (ka) of the catalytic process in the presence of a copper(II) bromide/tris(2-pyridylmethyl)amine (CuIIBr2/TPMA) catalyst in both organic solvent and for the first time in miniemulsion media, resulting in ka = (1.03 ± 0.01) × 104 M-1s-1 and ka = (1.16 ± 0.56) × 103 M-1s-1, resp. Star-like macromols. with a sucrose or lactulose core and poly(Bu acrylate) (PBA) arms were successfully received using different catalyst concentration Linear kinetics and a well-defined structure of synthesized polymers reflected by narrow mol. weight distribution (Mw/Mn = 1.46) indicated 105 ppm weight of catalyst loading as concentration to maintain controlled manner of polymerization process. 1H NMR anal. confirms the formation of new sugar-inspired star-shaped polymers. In the experiment, the researchers used Cupric bromide(cas: 7789-45-9Safety of Cupric bromide)

Cupric bromide(cas: 7789-45-9) can be used as reducing agent, when complexed by three molecules of pyridine initiators for the controlled polymerization of styrene, methyl acrylate and methyl methacrylate.Safety of Cupric bromide

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

In 2022,Abid Derbel, Marwa; Nasr, Samia; Naili, Houcine; Rekik, Walid published an article in Inorganic Chemistry Communications. The title of the article was 《Thermal behavior and optical properties of a new dimeric 1D mixed halide hybrid material [CuBrCl(C2H8N2)]》.Synthetic Route of Br2Cu The author mentioned the following in the article:

A new organic-inorganic Cu-based hybrid material containing ethylenediamine as organic part and mixed bromide/chloride as halide ions was synthesized and crystallog. characterized. At room temperature, this new compound adopts the monoclinic symmetry (space group P21/m) and presents the following unit-cell parameters: a 6.927(3), b 5.884(3), c 8.399(4) Å, β 94.856(13)° and Z = 2. The 1-dimensional structure of the title compound consists of infinite dimeric chains running along the crystallog. b axis. These chains are constructed from dimeric units [Cu2Br2Cl2(C2H8N2)2] linked together by sharing (Br/Cl) atoms. N-H… Br/Cl H bonds guarantee the connection between the dimeric chains and the cohesion of the structure. The TGA shows that this new hybrid material decomposes in two stages giving rise to the Cu oxide as final residue. The UV-visible absorption shows that the new complex undergoes three optical absorption bands at 238, 317 and 686 nm, resp. From the gap energy value of 2.92 eV the new mixed halide compound is a semiconductor material. The results came from multiple reactions, including the reaction of Cupric bromide(cas: 7789-45-9Synthetic Route of Br2Cu)

Some reported applications of Cupric bromide(cas: 7789-45-9) are: catalyst in cross coupling reactions; co-catalyst in Sonogashira coupling; lewis acid in enantioselective addition of alkynes.Synthetic Route of Br2Cu

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”