Category: 623-24-5

In 2022,Chen, Xiaodong; Chen, Qian; He, Dan; Yang, Sanxiu; Yang, Yunfei; Qian, Jing; Long, Lingliang; Wang, Kun published an article in Sensors and Actuators, B: Chemical. The title of the article was 《Mitochondria targeted and immobilized ratiometric NIR fluorescent probe for investigating SO2 phytotoxicity in plant mitochondria》.Application In Synthesis of 1,4-Bis(bromomethyl)benzene The author mentioned the following in the article:

Exposure to excessive SO2 will induce severe phytotoxicity to plants. Dissecting mechanisms of SO2 phytotoxicity is vital for preventing adverse effect of SO2. But unfortunately, the mechanisms of SO2 phytotoxicity remain elusive. We speculated that interaction of SO2 derivatives with mitochondria might be an important mechanism for SO2 phytotoxicity. To authenticate this speculation, it is urgently need to detect SO2 derivatives in plant mitochondria when it is suffering from SO2 phytotoxicity. Herein, we presented a novel ratiometric NIR fluorescent probe for highly sensitive and selective detection of SO2 derivatives in plant mitochondria. Notably, the probe not only could target into the mitochondria, but also can immobilize in the mitochondria to continue detecting SO2 derivatives even when the mitochondrial membrane potential was collapsed by high concentration of SO2 derivatives Importantly, the probe has been successfully employed for monitoring high concentration of SO2 derivatives in the plant mitochondria when the plant is suffering from SO2 phytotoxicity. The results demonstrated that the SO2 derivatives level in plant mitochondria is strictly associated with SO2 phytotoxicity. Thus, the interaction of SO2 derivatives with plant mitochondria could be considered as an important mechanism for SO2 phytotoxicity. In the experimental materials used by the author, we found 1,4-Bis(bromomethyl)benzene(cas: 623-24-5Application In Synthesis of 1,4-Bis(bromomethyl)benzene)

1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals.Application In Synthesis of 1,4-Bis(bromomethyl)benzene The most pervasive is the naturally produced bromomethane.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

The author of 《Effect of aromatic spacer groups and counterions on aqueous micellar and thermal properties of the synthesized quaternary ammonium gemini surfactants》 were Shakil Hussain, S. M.; Kamal, Muhammad Shahzad; Murtaza, Mobeen. And the article was published in Journal of Molecular Liquids in 2019. HPLC of Formula: 623-24-5 The author mentioned the following in the article:

One of the major challenges for the oil industry in the 21st century is to get the desired surfactants that are soluble in high saline water (220, 000 ppm) and stable at high temperature (100°C). Most com. surfactants suffering due to hydrolysis at high temperature and the monovalent and divalent reservoir ions leads to surfactant precipitation In order to address these issues, a new series of cationic gemini surfactants with a different number of aromatic rings in the spacer group as well as different counter ions were synthesized and characterized with the aid of MALDI-TOF MS, FTIR, 1H NMR, and 13C NMR spectroscopy. The effect of number of Ph aromatic rings in the spacer and counterions on thermal and surface properties was determined Thermogravimetric results showed the decomposition temperature of all the gemini surfactant near to 300°C which is larger than the existing oilfield temperature (≥100°C). The insertion of ethoxy units between the lipophilic tail and lipophobic headgroup resulted in good solubility of cationic gemini surfactants in high saline and normal water without cloudiness or precipitation The critical micelle concentration and the corresponding surface tension were lower for gemini surfactants containing bromide counterions compared to the surfactants containing chloride counterions. The gemini surfactants containing two aromatic Ph rings in the spacer have lower critical micelle concentration compared to the gemini surfactants with one Ph ring. The properties of the synthesized cationic gemini surfactants mark them a material of choice for high salinity/temperature reservoirs. In the experimental materials used by the author, we found 1,4-Bis(bromomethyl)benzene(cas: 623-24-5HPLC of Formula: 623-24-5)

1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. Organobromine compounds have fallen under increased scrutiny for their environmental impact. HPLC of Formula: 623-24-5

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Heck, Matthias; Botha, Carlo; Wilhelm, Manfred; Hirschberg, Valerian published their research in Macromolecular Rapid Communications in 2021. The article was titled 《One-Pot Synthesis of Alternating (Ultra-High Molecular Weight) Multiblock Copolymers via a Combination of Anionic Polymerization and Polycondensation》.Quality Control of 1,4-Bis(bromomethyl)benzene The article contains the following contents:

This article presents a fast, straightforward synthesis approach to polymerize alternating multiblock copolymers, ultra-high mol. weight (UHMW) (homo)polymers as well as precursors for complex macromol. topologies such as comb or barbwire architectures. The one-pot synthesis strategy proposed in this work is based on anionic polymerization via a bifunctional initiator and the subsequent linking of macro dianions with a bifunctional linker, addnl. overcoming the limitations associated with the monomer reactivity. Thus, the synthetic route guarantees the repeating size of polymer blocks and an equal distribution of functional groups in precursors for complex topologies. Dianions of polystyrene (PS), polyisoprene-b-polystyrene-b-polyisoprene, and poly-2-vinylpyridine-b-polystyrene-b-poly-2-vinylpyridine are linked with α,α’-dibromo-para-xylene to UHMW and multiblock copolymers. Multiblock copolymers with on average up to 50 well-defined alternating A and B blocks are accessible within 15 min. The experimental part of the paper was very detailed, including the reaction process of 1,4-Bis(bromomethyl)benzene(cas: 623-24-5Quality Control of 1,4-Bis(bromomethyl)benzene)

1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. Organobromine compounds have fallen under increased scrutiny for their environmental impact. Quality Control of 1,4-Bis(bromomethyl)benzene

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

HPLC of Formula: 623-24-5In 2020 ,《Synthesis of poly(phenylene methylenes) via a AlCl3-mediated Friedel-Craft alkylation of multi-substituted benzyl bromide with benzene》 appeared in Journal of Applied Polymer Science. The author of the article were Teng, Dao-Guang; Wei, Xian-Yong; Yang, Zheng; Zhu, Qing-Jiang; Gao, Hua-Shuai; Li, Jia-Hao; Zhang, Min; Zong, Zhi-Min; Kang, Yv-Hong. The article conveys some information:

A facile AlCl3-mediated Friedel-Craft alkylation between a multi-substituted benzyl bromide and benzene is established, in which a wide set of poly(phenylene methylenes) (MMSs) are synthesized through a two-step strategy under metal-free conditions with high yields (slightly lower than theor. yields). The resulting MMSs, characterized by Fourier transform IR spectrometry, NMR spectrometry, thermogravimetric anal., elemental anal., gel permeation chromatog., UV-vis and fluorescence spectrometry, feature large mol. mass, outstanding fluorescence, and excellent thermal/chem. stabilities. Moreover, a gram-scale reaction was carried out under the standard conditions to produce MMSs, exhibiting a promising potential application in industrial practice. In the experiment, the researchers used many compounds, for example, 1,4-Bis(bromomethyl)benzene(cas: 623-24-5HPLC of Formula: 623-24-5)

1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds.The reactivity of organobromine compounds resembles but is intermediate between the reactivity of organochlorine and organoiodine compounds. HPLC of Formula: 623-24-5 Dehydrobromination, Grignard reactions, reductive coupling, Wittig reaction, and several nucleophilic substitution reactions are some of the principal reactions which involve organic bromides.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Electric Literature of C8H8Br2In 2020 ,《Ring-in-Ring(s) Complexes Exhibiting Tunable Multicolor Photoluminescence》 was published in Journal of the American Chemical Society. The article was written by Wu, Huang; Wang, Yu; Jones, Leighton O.; Liu, Wenqi; Song, Bo; Cui, Yunpeng; Cai, Kang; Zhang, Long; Shen, Dengke; Chen, Xiao-Yang; Jiao, Yang; Stern, Charlotte L.; Li, Xiaopeng; Schatz, George C.; Stoddart, J. Fraser. The article contains the following contents:

One ring threaded by two other rings to form a non-intertwined ternary ring-in-rings motif is a challenging task in noncovalent synthesis. Constructing multicolor photoluminescence systems with tunable properties is also a fundamental research goal, which can lead to applications in multidimensional biol. imaging, visual displays, and encryption materials. Herein, we describe the design and synthesis of binary and ternary ring-in-ring(s) complexes, based on an extended tetracationic cyclophane and cucurbit[8]uril. The formation of these complexes is accompanied by tunable multicolor fluorescence outputs. On mixing equimolar amounts of the cyclophane and cucurbit[8]uril, a 1:1 ring-in-ring complex is formed as a result of hydrophobic interactions associated with a favorable change in entropy. With the addition of another equivalent of cucurbit[8]uril, a 1:2 ring-in-rings complex is formed, facilitated by addnl. ion-dipole interactions involving the pyridinium units in the cyclophane and the carbonyl groups in cucurbit[8]uril. Because of the narrowing in the energy gaps of the cyclophane within the rigid hydrophobic cavities of cucurbit[8]urils, the binary and ternary ring-in-ring(s) complexes emit green and bright yellow fluorescence, resp. A series of color-tunable emissions, such as sky blue, cyan, green, and yellow with increased fluorescence lifetimes, can be achieved by simply adding cucurbit[8]uril to an aqueous solution of the cyclophane. Notably, the smaller cyclobis(paraquat-p-phenylene), which contains the same p-xylylene linkers as the extended tetracationic cyclophane, does not form ring-in-ring(s) complexes with cucurbit[8]uril. The encapsulation of this extended tetracationic cyclophane by both one and two cucurbit[8]urils provides an incentive to design and synthesize more advanced supramol. systems, as well as opening up a feasible approach toward achieving tunable multicolor photoluminescence with single chromophores. In the experiment, the researchers used many compounds, for example, 1,4-Bis(bromomethyl)benzene(cas: 623-24-5Electric Literature of C8H8Br2)

1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals.Electric Literature of C8H8Br2 The most pervasive is the naturally produced bromomethane.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

COA of Formula: C8H8Br2In 2019 ,《A Dynamic Tetracationic Macrocycle Exhibiting Photoswitchable Molecular Encapsulation》 was published in Journal of the American Chemical Society. The article was written by Wu, Huang; Chen, Yong; Zhang, Long; Anamimoghadam, Ommid; Shen, Dengke; Liu, Zhichang; Cai, Kang; Pezzato, Cristian; Stern, Charlotte L.; Liu, Yu; Stoddart, J. Fraser. The article contains the following contents:

Designing macrocycles with appropriate mol. recognition features that allow for the integration of suitable external stimuli to control host-guest processes is a challenging endeavor which enables mol. containers to solubilize, stabilize, and sep. chem. entities in an externally controllable manner. Herein, we introduce photo- and thermal-responsive elements into a semi-rigid tetracationic cyclophane, OPVEx2Box4+, that is composed of oligo(p-phenylenevinylene) pyridinium units and the biphenylene-bridged 4,4-bipyridinium extended viologens and adopts a rectangle-like geometry. It transpires that when the photoactive oligo(p-phenylenevinylene) pyridinium unit is incorporated in a macrocyclic scaffold, its reversibility is dramatically improved, and the configurations of the cyclophane can go back and forth between (EE)- and (EZ)-isomers upon alternating blue light irradiation and heating. When the macrocycle is found in its (EE)-configuration, it is capable of binding various π-electron-rich guests-e.g., anthracene and perylene-as well as π-electron-deficient guests-e.g., 9,10-anthraquinone and 5,12-tetracenequinone-through charge-transfer and van der Waals interactions. When irradiated with blue light, the (EE)-isomer of the cyclophane can be transformed successfully to the (EZ)-isomer, resulting in the switching off of the binding affinity for guest mols., which are bound once again upon heating. The use of light and heat as external stimuli to control host-guest interactions involving a multi-responsive host and various guests provides us with a new opportunity to design and construct more-advanced mol. switches and machines. In the part of experimental materials, we found many familiar compounds, such as 1,4-Bis(bromomethyl)benzene(cas: 623-24-5COA of Formula: C8H8Br2)

1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds.Most of the natural organobromine compounds are produced by marine organisms , and several brominated metabolites with antibacterial , antitumor , antiviral , and antifungal activity have been isolated from seaweed, sponges, corals, molluscs, and others. In contrast, terrestrial plants account only for a few bromine-containing compounds.COA of Formula: C8H8Br2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Safety of 1,4-Bis(bromomethyl)benzeneIn 2021 ,《Tailoring the Pore Size and Chemistry of Ionic Ultramicroporous Polymers for Trace Sulfur Dioxide Capture with High Capacity and Selectivity》 was published in Angewandte Chemie, International Edition. The article was written by Suo, Xian; Yu, Ying; Qian, Siheng; Zhou, Lin; Cui, Xili; Xing, Huabin. The article contains the following contents:

Here we demonstrate the deep removal of SO2 with high uptake capacity (1.55 mmol g-1) and record SO2/CO2 selectivity (>5000) at ultra-low pressure of 0.002 bar, using ionic ultramicroporous polymers (IUPs) with high d. of basic anions. The successful construction of uniform ultramicropores via polymerizing ionic monomers into IUPs enables the fully exploitation of the selective anionic sites. Notably, the aperture size and surface chem. of IUPs can be finely tuned by adjusting the branched structure of ionic monomers, which play critical roles in excluding CH4 and N2, as well as reducing the coadsorption of CO2. The swelling property of IUPs with adsorption of SO2 contributed to the high SO2 uptake capacity and high separation selectivity. Systematic investigations including static gas adsorption, dynamic breakthrough experiments, stability tests and modeling studies confirmed the efficient performance of IUPs for trace SO2 capture. The results came from multiple reactions, including the reaction of 1,4-Bis(bromomethyl)benzene(cas: 623-24-5Safety of 1,4-Bis(bromomethyl)benzene)

1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds.Depending on the type of carbon to which the bromine is bonded, organic bromide could be alkyl, alkenyl, alkynyl, or aryl. Due to the reactivity of bromide, they are used as potential precursors or important intermediates in organic synthesis. Safety of 1,4-Bis(bromomethyl)benzene

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

SDS of cas: 623-24-5In 2022 ,《Quantifying the barrier for the movement of cyclobis(paraquat-p-phenylene) over the dication of monopyrrolotetrathiafulvalene》 was published in Organic & Biomolecular Chemistry. The article was written by Kristensen, Rikke; Neumann, Mathias S.; Andersen, Sissel S.; Stein, Paul C.; Flood, Amar H.; Jeppesen, Jan O.. The article contains the following contents:

A bistable [2]pseudorotaxane 1⊂CBPQT·4PF6 and a bistable [2]rotaxane 2·4PF6 have been synthesized to measure the height of an electrostatic barrier produced by double mol. oxidation (0 to +2). Both systems have monopyrrolotetrathiafulvalene (MPTTF) and oxyphenylene (OP) as stations for cyclobis(paraquat-p-phenylene) (CBPQT4+). They have a large stopper at one end while the second stopper in 24+ is composed of a thioethyl (SEt) group and a thiodiethyleneglycol (TDEG) substituent, whereas in 1⊂CBPQT4+, the SEt group has been replaced with a less bulky thiomethyl (SMe) group. This seemingly small difference in the substituents on the MPTTF unit leads to profound changes when comparing the phys. properties of the two systems allowing for the first measurement of the deslipping of the CBPQT4+ ring over an MPTTF2+ unit in the [2]pseudorotaxane. Cyclic voltammetry and 1H NMR spectroscopy were used to investigate the switching mechanism for 1⊂CBPQT·MPTTF4+ and 2·MPTTF4+, and it was found that CBPQT4+ moves first to the OP station producing 1⊂CBPQT·OP6+ and 2·OP6+, resp., upon oxidation of the MPTTF unit. The kinetics of the complexation/decomplexation process occurring in 1⊂CBPQT·MPTTF4+ and in 1⊂CBPQT·OP6+ were studied, allowing the free energy of the transition state when CBPQT4+ moves across a neutral MPTTF unit (17.0 kcal mol-1) or a di-oxidised MPTTF2+ unit (24.0 kcal mol-1) to be determined These results demonstrate that oxidation of the MPTTF unit to MPTTF2+ increases the energy barrier that the CBPQT4+ ring must overcome for decomplexation to occur by 7.0 kcal mol-1. In the experiment, the researchers used many compounds, for example, 1,4-Bis(bromomethyl)benzene(cas: 623-24-5SDS of cas: 623-24-5)

1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds.Most of the natural organobromine compounds are produced by marine organisms , and several brominated metabolites with antibacterial , antitumor , antiviral , and antifungal activity have been isolated from seaweed, sponges, corals, molluscs, and others. SDS of cas: 623-24-5

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2019,Angewandte Chemie, International Edition included an article by Wang, Bing; Chou, Kuang-Hua; Queenan, Bridget N.; Pennathur, Sumita; Bazan, Guillermo C.. HPLC of Formula: 623-24-5. The article was titled 《Molecular Design of a New Diboronic Acid for the Electrohydrodynamic Monitoring of Glucose》. The information in the text is summarized as follows:

A new dicationic diboronic acid structure, DBA2+, was designed to exhibit good affinity (Kd ≈ 1 mM) and selectivity toward glucose. Binding of DBA2+ to glucose changes the pKa of DBA2+ from 9.4 to 6.3, enabling opportunities for detection of glucose at physiol. pH. Proton release from DBA2+ is firmly related to glucose concentrations within the physiol. relevant range (0-30 mM), as verified by conductometric monitoring. Negligible interference from other sugars (for example, maltose, fructose, sucrose, lactose, and galactose) was observed These results demonstrate the potential of DBA2+ for selective, quant. glucose sensing. The nonenzymic strategy based on electrohydrodynamic effects may enable the development of stable, accurate, and continuous glucose monitoring platforms.1,4-Bis(bromomethyl)benzene(cas: 623-24-5HPLC of Formula: 623-24-5) was used in this study.

1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds. A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. Organobromine compounds have fallen under increased scrutiny for their environmental impact. HPLC of Formula: 623-24-5

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Synthetic Route of C8H8Br2In 2019 ,《Tetrameric (Bi4I16)4- Iodobismuthate Templated by 1,ω-Bis(isoquinoline)alkane cation: structure, photoluminescence and enhanced thermochromism》 was published in Chinese Journal of Structural Chemistry. The article was written by Wang, Penga; Chen, Zhi-Rong; Li, Hao-Hong. The article contains the following contents:

Using 1,1′-bis(isoquinoline)-1,4-phenyldimethylenyl (BIQPM2+) cation as template, a new tetrameric (Bi4I16)4- iodobismuthate-containing hybrid with formula of (BIQPM)2(Bi4I16)•H2O (1), has been prepared under solvothermal conditions. The centrosym. Bi4I164- tetraanion is constructed from four edge-shared slightly distorted BiI6 octahedrons. Due to the presence of larger conjugated system (isoquinoline ring), strong π•••π stacking interactions can be observed Besides, strong I•••I interactions can be monitored and extends the 0-D Bi4I164- cluster to a quasi-1-D chain. The smaller energy gap of 2.13 eV is led by these non-covalent interactions. Its IR emission might be caused by strong charge transfer between anions and cations. Furthermore, the reversible thermochromic behavior with low chromotropic temperature of 80° can be observed, whose mechanism was discussed. In the experiment, the researchers used 1,4-Bis(bromomethyl)benzene(cas: 623-24-5Synthetic Route of C8H8Br2)

1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds.Most of the natural organobromine compounds are produced by marine organisms , and several brominated metabolites with antibacterial , antitumor , antiviral , and antifungal activity have been isolated from seaweed, sponges, corals, molluscs, and others. Synthetic Route of C8H8Br2 In contrast, terrestrial plants account only for a few bromine-containing compounds.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary