Category: 623-24-5

《Polymerization of N-vinyl caprolactam by ultrasound aided dual-sited phase transfer catalytic conditions》 was written by Marimuthu, Elumalai; Murugesan, Vajjiravel. Recommanded Product: 1,4-Bis(bromomethyl)benzeneThis research focused onvinyl caprolactam phase transfer catalyzed polymerization. The article conveys some information:

This work demonstrates the successful polymerization of N-vinyl caprolactam using dual-sited phase-transfer catalyst and potassium persulfate as conventional radical initiator in cyclohexane-aqueous media at 60 ± 2°C under normal and ultrasound environment with 45 kHz power of 550 W. Dual-sited phase-transfer catalyst acts as a gear to accelerate the reaction in a two-phase system and along with ultrasound circumstance reaction rate was effectively improved. We observed that the polymerization rate was significantly increased with an increase of concentration of different reaction parameters and also presence of ultrasound environment rate was doubled than with normal condition. Activation energy value of polymerization reaction validates the doubling of polymerization rate. The various reaction parameters (frequency, monomer, initiator, catalyst, and temperature) on the polymerization rate were explored under normal and ultrasound condition. Acquired poly(N-vinyl caprolactam) was validated and characterized by different analyses. In the experiment, the researchers used 1,4-Bis(bromomethyl)benzene(cas: 623-24-5Recommanded Product: 1,4-Bis(bromomethyl)benzene)

1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds.Organobromine chemicals are produced naturally by an array of biological and other chemical processes in our environment. Organobromine compounds are produced naturally by marine creatures (sponges, corals, sea slugs, tunicates, sea fans) and seaweed, plants, fungi, lichen, algae, bacteria, microbes, and some mammals. Recommanded Product: 1,4-Bis(bromomethyl)benzene

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2019,Angewandte Chemie, International Edition included an article by Anamimoghadam, Ommid; Cooper, James A.; Nguyen, Minh T.; Guo, Qing-Hui; Mosca, Lorenzo; Roy, Indranil; Sun, Junling; Stern, Charlotte L.; Redfern, Louis; Farha, Omar K.; Stoddart, J. Fraser. Application In Synthesis of 1,4-Bis(bromomethyl)benzene. The article was titled 《Cyclotris(paraquat-p-phenylenes)》. The information in the text is summarized as follows:

Reported here is the synthesis, solid-state characterization, and redox properties of new triangular, threefold sym., viologen-containing macrocycles. Cyclotris(paraquat-p-phenylene) (CTPQT6+) and cyclotris(paraquat-p-1,4-dimethoxyphenylene) (MCTPQT6+) were prepared and their X-ray single-crystal (super)structures reveal intricate three-dimensional packing. MCTPQT6+ results in nanometer-sized channels, in contrast with its parent counterpart CTPQT6+ which crystallizes as a couple of polymorphs in the form of intercalated assemblies. In the solid state, MCTPQT3(.+) exhibits stacks between the 1,4-dimethoxyphenylene and bipyridinium radical cations, providing new opportunities for the manipulation and control of the recognition motif associated with viologen radical cations. These redox-active cyclophanes demonstrate that geometry-matching and weak intermol. interactions are of paramount importance in dictating the formation of their intricate solid-state superstructures. After reading the article, we found that the author used 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.The reactivity of organobromine compounds resembles but is intermediate between the reactivity of organochlorine and organoiodine compounds. Dehydrobromination, Grignard reactions, reductive coupling, Wittig reaction, and several nucleophilic substitution reactions are some of the principal reactions which involve organic bromides.Application In Synthesis of 1,4-Bis(bromomethyl)benzene

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Category: bromides-buliding-blocksIn 2019 ,《Thinking Outside the “”Blue Box””: Induced Fit within a Unique Self-Assembled Polycationic Cyclophane》 was published in Journal of the American Chemical Society. The article was written by Blanco-Gomez, Arturo; Fernandez-Blanco, Angel; Blanco, Victor; Rodriguez, Jaime; Peinador, Carlos; Garcia, Marcos D.. The article contains the following contents:

We present herein the development of a new polycationic mol. receptor, inspired by the ubiquitous cyclobis(paraquat-p-phenylene)cyclophane (“”blue box””). Our analog, the “”white box””, has been easily self-assembled on a preparative scale in water, using a template-assisted process by acyl hydrazone bonding of complementary bis(pyridinium)xylylene tweezers, followed by kinetic trapping of the empty receptor. The obtained macrocycle was found to display a marked pH responsiveness in water, because of an abnormal acidity of the amide protons within its structure. Consequently, and because of the concurrence of rotational isomerism under acidic conditions (fixed at higher pH values), the compound was found to display a dual behavior as a conformationally locked/flexible mol. host, being able to recognize appropriate aromatic substrates, in a lock and key or induced fit fashion, by a conjunction of π-π, C-H···π, and, crucially, the hydrophobic effect. In addition to this study using 1,4-Bis(bromomethyl)benzene, there are many other studies that have used 1,4-Bis(bromomethyl)benzene(cas: 623-24-5Category: bromides-buliding-blocks) was used in this study.

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. Dehydrobromination, Grignard reactions, reductive coupling, Wittig reaction, and several nucleophilic substitution reactions are some of the principal reactions which involve organic bromides.Category: bromides-buliding-blocks

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Reference of 1,4-Bis(bromomethyl)benzeneIn 2020 ,《Tetraphenylethene-based tetracationic dicyclophanes: synthesis, mechanochromic luminescence, and photochemical reactions》 was published in Chemical Communications (Cambridge, United Kingdom). The article was written by Nian, Hao; Li, Aisen; Li, Yawen; Cheng, Lin; Wang, Ling; Xu, Weiqing; Cao, Liping. The article contains the following contents:

Two tetraphenylethene-based tetracationic dicyclophanes 1 and 2 were synthesized via a one-step SN2 reaction. Based on the central TPE unit and the slight difference of the outer linkers, 1 and 2 exhibited a classic aggregation-induced emission but contrasting mechanochromic luminescence under grinding, vaporing, or hydrostatic pressure in the solid state, and photochem. reactions with various emitting colors induced by photoirradiation in the solution state.1,4-Bis(bromomethyl)benzene(cas: 623-24-5Reference of 1,4-Bis(bromomethyl)benzene) was used in this study.

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. Reference of 1,4-Bis(bromomethyl)benzene Due to the reactivity of bromide, they are used as potential precursors or important intermediates in organic synthesis.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Name: 1,4-Bis(bromomethyl)benzeneIn 2019 ,《Tetraphenylethene-based tetracationic cyclophanes and their selective recognition for amino acids and adenosine derivatives in water》 was published in Chemical Communications (Cambridge, United Kingdom). The article was written by Cheng, Lin; Zhang, Haiyang; Dong, Yunhong; Zhao, Yanxia; Yu, Yang; Cao, Liping. The article contains the following contents:

Two new tetracationic cyclophanes 1 and 2 containing tetraphenylethene and bipyridinium moieties were synthesized via a two-step SN2 reaction. These water-soluble cyclophanes with a cationic and hydrophobic cavity exhibited selective recognition for amino acids (e.g. tryptophan) and adenosine derivatives (e.g.ATP) via electrostatic and π-π interactions in water. In addition to this study using 1,4-Bis(bromomethyl)benzene, there are many other studies that have used 1,4-Bis(bromomethyl)benzene(cas: 623-24-5Name: 1,4-Bis(bromomethyl)benzene) was used in this study.

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. Name: 1,4-Bis(bromomethyl)benzene Due to the reactivity of bromide, they are used as potential precursors or important intermediates in organic synthesis.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2022,Liu, Chao; Shi, Lei; Zhang, Jiaxu; Sun, Jianmin published an article in Chemical Engineering Journal (Amsterdam, Netherlands). The title of the article was 《One-pot synthesis of pyridine-based ionic hyper-cross-linked polymers with hierarchical pores for efficient CO2 capture and catalytic conversion》.Reference of 1,4-Bis(bromomethyl)benzene The author mentioned the following in the article:

A kind of pyridine-based ionic hyper-cross-linked polymers (Py-HCP-X, X = Cl, Br) with high surface area, plentiful hierarchical pores and abundant catalytic active units were prepared via a one-pot method. Adsorption measurements showed that the as-prepared Py-HCP-X exhibited high CO2 capture capacity (up to 1.72 mmol g-1, 273 K and 1 bar). Importantly, Py-HCP-Br displayed excellent catalytic activity for the cycloaddition of CO2 to epoxides under metal/cocatalyst/solvent-free conditions. And the propylene carbonate was produced in 97% yield with an excellent selectivity of 99% at 120°C and 2.0 MPa CO2 for 8 h. The high performance of the present catalyst is ascribable to synergistic contributions of plentiful hierarchical pores and abundant nucleophilic bromide ions and pyridine-based active units in the Py-HCP-Br catalyst. Addnl., the catalyst is able to be simply separated by centrifugation and reused for four runs without significant loss in the performance, furthermore, the catalyst exhibits great structural stability and substrate universality. In the experiment, the researchers used 1,4-Bis(bromomethyl)benzene(cas: 623-24-5Reference of 1,4-Bis(bromomethyl)benzene)

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. Dehydrobromination, Grignard reactions, reductive coupling, Wittig reaction, and several nucleophilic substitution reactions are some of the principal reactions which involve organic bromides.Reference of 1,4-Bis(bromomethyl)benzene

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

The author of 《Fabrication of nor-seco-cucurbit[10]uril based supramolecular polymers via self-sorting》 were Yang, Yuchong; Ni, Xin-Long; Xu, Jiang-Fei; Zhang, Xi. And the article was published in Chemical Communications (Cambridge, United Kingdom) in 2019. Computed Properties of C8H8Br2 The author mentioned the following in the article:

A nor-seco-CB[10] (ns-CB[10]) based linear supramol. polymer is firstly fabricated via self-sorting strategy. Through self-sorting of the monomer, ns-CB[10] and CB[7], the unfavorable factors for supramol. polymerization are avoided. Therefore, supramol. polymer with high mol. weight is successfully fabricated, and the mol. weight can be controllably regulated. The experimental part of the paper was very detailed, including the reaction process of 1,4-Bis(bromomethyl)benzene(cas: 623-24-5Computed Properties 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. Computed Properties of C8H8Br2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Guan, Lijiang; Cheng, Guang; Tan, Bien; Jin, Shangbin published their research in Chemical Communications (Cambridge, United Kingdom) in 2021. The article was titled 《Covalent triazine frameworks formation via benzyl halide monomers forming photocatalyst for biomass reforming hydrogen evolution》.Application In Synthesis of 1,4-Bis(bromomethyl)benzene The article contains the following contents:

Here we report the synthesis of covalent triazine frameworks (CTFs) using benzyl halide monomers which are more cost-effective and with higher availability than previous ones. The resulting CTFs were successfully applied for efficient photocatalytic reforming of glucose for the first time, with a high hydrogen evolution rate up to 330μmol g-1 h-1 under pH = 12. This work presented a new way to synthesize CTFs and further exhibited their potential applications in photocatalytic biomass reforming. In addition to this study using 1,4-Bis(bromomethyl)benzene, there are many other studies that have used 1,4-Bis(bromomethyl)benzene(cas: 623-24-5Application In Synthesis of 1,4-Bis(bromomethyl)benzene) was used in this study.

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. Moreover, several studies demonstrate that the average proportion of bromine in drugs is significantly higher than that in natural products. Application In Synthesis of 1,4-Bis(bromomethyl)benzene

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Benzimidazole-based hyper-cross-linked poly(ionic liquid)s for efficient CO2 capture and conversion》 was published in Chemical Engineering Journal (Amsterdam, Netherlands) in 2020. These research results belong to Sang, Yafei; Huang, Jianhan. Name: 1,4-Bis(bromomethyl)benzene The article mentions the following:

Porous materials with high Brunauer-Emmett-Teller (BET) surface area (SBET) and abundant ionic active sites facilitate efficient CO2 capture and conversion. Herein, a kind of novel benzimidazole-based hyper-cross-linked poly(ionic liquid)s (HPILs) were developed via the hyper-crosslinking strategy and the as-prepared HPILs possessed high SBET (485-780 m2/g), plentiful micro/mesoporosity, and abundant ionic active sites. The HPILs showed noteworthy CO2 uptake (79-143 mg/g at 273 K and 1.0 bar), moderate isosteric heats (32-45 kJ/mol), and acceptable CO2/N2 selectivity (IAST: 23-46). Intriguingly, HPILs-Cl-2 exhibited excellent catalytic activity for CO2 cycloaddition and 99% of propylene oxide was successfully converted to cyclic carbonates under mild conditions (70°, 0.1 MPa CO2, 9 h). This synthetic strategy is of great importance for the functionalized hyper-cross-linked polymers and the synthesized HPILs are promising for efficient CO2 capture and conversion under mild conditions. After reading the article, we found that the author used 1,4-Bis(bromomethyl)benzene(cas: 623-24-5Name: 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. Alkyl bromides are mainly used as alkylating agents and also find application as a solvent to extract oil from seeds and wool. Name: 1,4-Bis(bromomethyl)benzene

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Building a smart surface with converse temperature-dependent wettability based on poly(acrylamide-co-acrylonitrile)》 was published in Chemical Communications (Cambridge, United Kingdom) in 2020. These research results belong to Chen, Longbin; Yang, Tao; Niu, Yue; Mu, Xin; Gong, Yelei; Feng, Yancong; de Rooij, Nicolaas Frans; Wang, Yao; Li, Hao; Zhou, Guofu. Quality Control of 1,4-Bis(bromomethyl)benzene The article mentions the following:

A smart surface with converse temperature-dependent (CTD) wettability was fabricated from an upper critical solution temperature-type (UCST-type) poly(acrylamide-co-acrylonitrile) (P(AAm-co-AN)) copolymer. The obtained surface exhibits a remarkable and reversible hydrophobic-hydrophilic transition depending on temperature with a high response rate. The static water contact angle of the surface decreases from 103° ± 2° to 60° ± 1° as the temperature increases from 30°C to 80°C. Further, the wettability of the UCST-type surface shows a pos. linear relationship between wettability and temperature This study for the first time provides an UCST-type smart surface with wettability that decreases by over 35° as the temperature increases by only 20°C. In the experiment, the researchers used 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.Quality Control of 1,4-Bis(bromomethyl)benzene Organobromine compounds have fallen under increased scrutiny for their environmental impact.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary