Tag: 300-400

Computed Properties of Br3InIn 2021 ,《Indium bromide (InBr3): A versatile and efficient catalyst in organic synthesis》 appeared in Synthetic Communications. The author of the article were Yu, Ying; Kazemi, Mosstafa. The article conveys some information:

A review. Indium compounds are versatile and efficient materials for catalysis in chem. science, especially in organic synthesis. Amongst indium compounds, indium bromide (InBr3) is widely employed in many chem. reactions. The present review focuses on the developments in the catalytic application of indium bromide (InBr3) for chem. reactions. The review is aimed at researchers, graduate students, and synthetic chemists at all levels in academia and industry, for the utilization of indium bromide (InBr3) as a catalyst in chem. transformations. In the experiment, the researchers used many compounds, for example, Indium(III) bromide(cas: 13465-09-3Computed Properties of Br3In)

Indium(III) bromide(cas: 13465-09-3) is used as a catalyst to produce dithioacetals when unactivated alkynes react with thiols and fields such as optics and microelectronics that utilize semiconductor technology have wide uses for indium in high-performing solar cells.Computed Properties of Br3In

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2022,Liu, Aifeng; Zheng, Minggang; Qiu, Ying; Hua, Yi; Li, Ying; Jiang, Yuqing; Ning, Ke; Hu, Shanmin; Wang, Ling published an article in Environmental Research. The title of the article was 《Study of the scavenger and vector roles of microplastics for polyhalocarbazoles under simulated gastric fluid conditions》.Related Products of 6825-20-3 The author mentioned the following in the article:

Microplastics entering the digestive system of living organisms can serve as a carrier of hydrophobic organic pollutants (HOPs), increasing their exposure levels and the health risks they pose to both humans and animals. The desorption kinetics of six polyhalocarbazoles (PHCZs) from 5 mm and 0.15 mm polypropylene (PP) and polyvinyl chloride (PVC) microplastic particles were assessed using a combined microplastics and food system, representing the gastric system of vertebrates and invertebrates. Results showed that the chem. transfer of PHCZs is biphasic and reversible, with rapid exchange occurring within 2-48 h, followed by a period of slow transfer, which continues for weeks to months. The desorption capacity of PHCZs loaded on 0.15 mm microplastic particles was greater than that of 5 mm particles. The bioavailability percentage of PHCZ congeners for PP (24.2%-65.3%) and PVC (43.5%-57.2%) in the vertebrate fluid system were all lower than those in the invertebrate system (34.2%-70.7% for PP and 56.3%-72.7% for PVC, resp.). These findings indicate that physiol. conditions, such as polarity, ingestion fluid, and microplastic affect the desorption of PHCZs from microplastics. In addition, desorption from PP was inhibited by the presence of foodstuff loaded with PHCZs due to competition, while desorption from PVC was not significantly affected by the presence of PHCZs contaminant food. Microplastics could provide a cleaning function in gastric fluid systems containing contaminated foodstuff, especially PP, which was capable of competitive adsorption of PHCZs from food. Few investigations have focused on the adverse effects of microplastic ingestion on human health, particularly in their role as vectors for HOPs, compared to other routes of exposure and transport. Therefore, these findings provide valuable insight into the health risks associated with dietary intake of microplastics and HOPs. In addition to this study using 3,6-Dibromo-9H-carbazole, there are many other studies that have used 3,6-Dibromo-9H-carbazole(cas: 6825-20-3Related Products of 6825-20-3) was used in this study.

3,6-Dibromo-9H-carbazole(cas: 6825-20-3) is used as a pharmaceutical intermediate, and also an important intermediate of synthesizing optoelectronic materials. It has been used in the preparation of N-(2-hydroxyethyl)-3,6-dibromocarbazole.Related Products of 6825-20-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2022,Tandekar, Kesar; Tripathi, Anjali; Prasad, Muvva D.; Supriya, Sabbani published an article in Materials Advances. The title of the article was 《Keggin based self-assembled mesoporous materials for capture of selective guest molecules》.Quality Control of Ethyltriphenylphosphonium bromide The author mentioned the following in the article:

A series of self-assembled mesoporous materials, compounds 1-9, of the type [RPPh3]n[XM12O40] (R = Ph, Me, Et; n = 3 or 4; X = P, Si; M = Mo, W) composed of Keggin anions and phosphonium cations have been fabricated and characterized. These thermally stable hybrid materials show selective reversible uptake of non-polar mols. such as iodine and carbon disulfide under ambient conditions. The resultant porosity is attributed to the self-assembling of the cations on the surface of the Keggin anion such that the pores are lined with the phosphonium cations rendering them hydrophobhic. The present work explores the spontaneous self-assembly process of POM integrated mesoporous compounds stabilized via non-covalent interactions and their potential applications as adsorbing materials. In the experimental materials used by the author, we found Ethyltriphenylphosphonium bromide(cas: 1530-32-1Quality Control of Ethyltriphenylphosphonium bromide)

Ethyltriphenylphosphonium bromide(cas: 1530-32-1) is a phase transfer catalyst, used to accelerate the cure of phenolic-based epoxy resins, certain fluoroelastomer resins and thermosetting powder coatings. CatOnium ETPB is also used as catalysts in the synthesis of certain organic compounds.Quality Control of Ethyltriphenylphosphonium bromide

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Asymmetric construction of acyclic quaternary stereocenters via direct enantioselective additions of α-alkynyl ketones to allenamides》 was written by Wang, Jiawen; He, Faqian; Yang, Xiaoyu. Application of 1530-32-1 And the article was included in Nature Communications in 2021. The article conveys some information:

Acyclic quaternary stereocenters are widely present in a series of biol. active natural products and pharmaceuticals. However, development of highly efficient asym. catalytic methods for the construction of these privileged motifs represents a longstanding challenge in organic synthesis. Herein, an efficient chiral phosphoric acid catalyzed direct asym. addition of α-alkynyl acyclic ketones with allenamides has been developed, furnishing the acyclic all-carbon quaternary stereocenters with excellent regioselectivities and high enantioselectivities. Extensive and detailed exptl. mechanistic studies were performed to investigate the mechanism of this reaction. Despite a novel covalent allyl phosphate intermediate was found in these reactions, further studies indicated that a SN2-type mechanism with the ketone nucleophiles is not very possible. Instead, a more plausible mechanisml involving the elimination of the allyl phosphate to give the α,β-unsaturated iminium intermediate, which underwent the asym. conjugate addition with the enol form of ketone nucleophiles under chiral anion catalysis, was proposed. In virtue of the fruitful functional groups bearing in the chiral products, the diverse derivatizations of the chiral products provided access to a wide array of chiral scaffolds with quaternary stereocenters. In addition to this study using Ethyltriphenylphosphonium bromide, there are many other studies that have used Ethyltriphenylphosphonium bromide(cas: 1530-32-1Application of 1530-32-1) was used in this study.

Ethyltriphenylphosphonium bromide(cas: 1530-32-1) is a phase transfer catalyst, used to accelerate the cure of phenolic-based epoxy resins, certain fluoroelastomer resins and thermosetting powder coatings. It is also used as catalysts in the synthesis of certain organic compounds and as a pharmaceutical intermediate.Application of 1530-32-1

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2019,Nature Communications included an article by Krause, Simon; Evans, Jack D.; Bon, Volodymyr; Senkovska, Irena; Iacomi, Paul; Kolbe, Felicitas; Ehrling, Sebastian; Troschke, Erik; Getzschmann, Juergen; Toebbens, Daniel M.; Franz, Alexandra; Wallacher, Dirk; Yot, Pascal G.; Maurin, Guillaume; Brunner, Eike; Llewellyn, Philip L.; Coudert, Francois-Xavier; Kaskel, Stefan. Reference of 3,6-Dibromo-9H-carbazole. The article was titled 《Towards general network architecture design criteria for negative gas adsorption transitions in ultraporous frameworks》. The information in the text is summarized as follows:

Switchable metal-organic frameworks (MOFs) have been proposed for various energy-related storage and separation applications, but the mechanistic understanding of adsorption-induced switching transitions is still at an early stage. Here we report critical design criteria for neg. gas adsorption (NGA), a counterintuitive feature of pressure amplifying materials, hitherto uniquely observed in a highly porous framework compound (DUT-49). These criteria are derived by analyzing the phys. effects of micromechanics, pore size, interpenetration, adsorption enthalpies, and the pore filling mechanism using advanced in situ X-ray and neutron diffraction, NMR spectroscopy, and calorimetric techniques parallelised to adsorption for a series of six isoreticular networks. Aided by computational modeling, we identify DUT-50 as a new pressure amplifying material featuring distinct NGA transitions upon methane and argon adsorption. In situ neutron diffraction anal. of the methane (CD4) adsorption sites at 111 K supported by grand canonical Monte Carlo simulations reveals a sudden population of the largest mesopore to be the critical filling step initiating structural contraction and NGA. In contrast, interpenetration leads to framework stiffening and specific pore volume reduction, both factors effectively suppressing NGA transitions. The experimental part of the paper was very detailed, including the reaction process of 3,6-Dibromo-9H-carbazole(cas: 6825-20-3Reference of 3,6-Dibromo-9H-carbazole)

3,6-Dibromo-9H-carbazole(cas: 6825-20-3) is used as a pharmaceutical intermediate, and also an important intermediate of synthesizing optoelectronic materials. It has been used as a reagent in the synthesis of P7C3-A20 which is a potent neuroprotective agent.Reference of 3,6-Dibromo-9H-carbazole

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2019,ChemPlusChem included an article by Mohamed, Mohamed Gamal; El-Mahdy, Ahmed F. M.; Ahmed, Mahmoud M. M.; Kuo, Shiao-Wei. Quality Control of 3,6-Dibromo-9H-carbazole. The article was titled 《Direct Synthesis of Microporous Bicarbazole-Based Covalent Triazine Frameworks for High-Performance Energy Storage and Carbon Dioxide Uptake》. The information in the text is summarized as follows:

In this study a series of bicarbazole-based covalent triazine frameworks (Car-CTFs) were synthesized under ionothermal conditions from [9,9′-bicarbazole]-3,3′,6,6′-tetracarbonitrile (Car-4CN) in the presence of molten zinc chloride. Thermogravimetric and Brunauer-Emmett-Teller analyses revealed that these Car-CTFs possessed excellent thermal stabilities and high sp. surface areas (ca. 1400 m2/g). The electrochem. performances of this Car-CTF series, investigated by using cyclic voltammetry, showed a highest capacitance of (545 F/g at 5 mV/s), which also exhibited excellent columbic efficiencies of 96.1% after 8000 cycles at 100μA/0.5 cm2. The other Car-CTF samples displayed similar efficiencies. Furthermore, based on CO2 uptake measurements, one of the series showed the highest CO2 uptake capacities: 3.91 and 7.60 mmol/g at 298 and 273 K, resp. These results suggest a simple method for the preparation of CTF materials that provide excellent electrochem. and CO2 uptake performance. In the experiment, the researchers used many compounds, for example, 3,6-Dibromo-9H-carbazole(cas: 6825-20-3Quality Control of 3,6-Dibromo-9H-carbazole)

3,6-Dibromo-9H-carbazole(cas: 6825-20-3) is used as a reagent in the synthesis of P7C3-A20 which is a potent neuroprotective agent. And it has been used in the preparation of N-(2-hydroxyethyl)-3,6-dibromocarbazole.Quality Control of 3,6-Dibromo-9H-carbazole

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Computed Properties of C15H12BrNO2SOn May 8, 2006 ,《Synthesis of fused imidazo-pyridine and -azepine derivatives by sequential van Leusen/Heck reactions》 appeared in Tetrahedron Letters. The author of the article were Beebe, Xenia; Gracias, Vijaya; Djuric, Stevan W.. The article conveys some information:

Fused imidazo-pyridine and -azepine derivatives were synthesized using a sequential van Leusen/intramol. Heck protocol. The combination of a multicomponent reaction followed by an intramol. carbon-carbon bond forming reaction generates heterocycles of significant mol. complexity from readily available starting materials in just two steps. In addition to this study using a-Tosyl-(2-bromobenzyl) isocyanide, there are many other studies that have used a-Tosyl-(2-bromobenzyl) isocyanide(cas: 936548-16-2Computed Properties of C15H12BrNO2S) was used in this study.

a-Tosyl-(2-bromobenzyl) isocyanide(cas: 936548-16-2) belongs to organobromine compounds.The reactivity of organobromine compounds resembles but is intermediate between the reactivity of organochlorine and organoiodine compounds. The principal reactions for organobromides include dehydrobromination, Grignard reactions, reductive coupling, and nucleophilic substitution.Computed Properties of C15H12BrNO2S

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Formula: C10H16Br3NOn March 2, 2021, Williams, Sierra J.; Hwang, Clare S.; Prescher, Jennifer A. published an article in Biochemistry. The article was 《Orthogonal bioluminescent probes from disubstituted luciferins》. The article mentions the following:

Bioluminescence imaging with luciferase-luciferin pairs is routinely used to monitor cellular functions. Multiple targets can be visualized in tandem using luciferases that process unique substrates, but only a handful of such orthogonal probes are known. Multiplexed studies require addnl. robust, light-emitting mols. In this work, we report new luciferins for orthogonal imaging that comprise disubstituted cores. These probes were found to be bright emitters with various engineered luciferases. The unique patterns of light output also provided insight into enzyme-substrate interactions necessary for productive emission. Screening studies identified mutant luciferases that could preferentially process the disubstituted analogs, enabling orthogonal imaging with existing bioluminescent reporters. Further mutational analyses revealed the origins of substrate selectivity. Collectively, this work provides insights into luciferase-luciferin features relevant to bioluminescence and expands the number of probes for multicomponent tracking. The results came from multiple reactions, including the reaction of Mono(N,N,N-trimethyl-1-phenylmethanaminium) tribromide(cas: 111865-47-5Formula: C10H16Br3N)

Mono(N,N,N-trimethyl-1-phenylmethanaminium) tribromide(cas: 111865-47-5) 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.Formula: C10H16Br3N

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Alkyl vs. aryl modifications: a comparative study on modular modifications of triphenylphosphonium mitochondrial vectors》 was written by Ong, How Chee; Coimbra, Joao T. S.; Kwek, Germain; Ramos, Maria J.; Xing, Bengang; Fernandes, Pedro A.; Garcia, Felipe. Application In Synthesis of Ethyltriphenylphosphonium bromideThis research focused ontriphenylphosphonium mitochondrial vector alkyl aryl modification lipophilicity. The article conveys some information:

Triphenylphosphonium (TPP+) moieties are commonly conjugated to drug mols. to confer mitochondrial selectivity due to their pos. charge and high lipophilicity. Although optimization of lipophilicity can be achieved by modifying the length of the alkyl linkers between the TPP+ moiety and the drug mol., it is not always possible. While methylation of the TPP+ moiety is a viable alternative to increase lipophilicity and mitochondrial accumulation, there are no studies comparing these two sep. modular approaches. Thus, we have systematically designed, synthesized and tested a range of TPP+ mols. with varying alkyl chain lengths and degree of aryl methylation to compare the two modular methodologies for modulating lipophilicity. The ability of aryl/alkyl modified TPP+ to deliver cargo to the mitochondria was also evaluated by confocal imaging with a TPP+-conjugated fluorescein-based fluorophore. Furthermore, we have employed mol. dynamics simulations to understand the translocation of these mols. through biol. membrane model systems. These results provide further insights into the thermodn. of this process and the effect of alkyl and aryl modular modifications. In the part of experimental materials, we found many familiar compounds, such as Ethyltriphenylphosphonium bromide(cas: 1530-32-1Application In Synthesis of Ethyltriphenylphosphonium bromide)

Ethyltriphenylphosphonium bromide(cas: 1530-32-1) is a phase transfer catalyst, used to accelerate the cure of phenolic-based epoxy resins, certain fluoroelastomer resins and thermosetting powder coatings. CatOnium ETPB is also used as catalysts in the synthesis of certain organic compounds.Application In Synthesis of Ethyltriphenylphosphonium bromide

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《A chiral uranyl-Kemp’s tricarboxylate cubic framework: structure-directing effect of counter ions with three-fold rotational symmetry》 was written by Thuery, Pierre; Harrowfield, Jack. Related Products of 1779-49-3This research focused onuranyl carboxylate coordination polymer preparation Hirshfeld surface; crystal structure uranyl carboxylate coordination polymer. The article conveys some information:

In the presence of PPh3Me+ cations, Kemp’s tricarboxylate (kta3-) complexes the uranyl cation to give [PPh3Me][UO2(kta)] (1), a triperiodic framework with cubic symmetry and srs topol. The PPh3Me+ cation is held by weak interactions into cavities with matching three-fold rotational symmetry. Comparison with the diperiodic hemi-hydrate polymorph previously reported points to the disrupting role of OH···O hydrogen bonds in the latter.Methyltriphenylphosphonium bromide(cas: 1779-49-3Related Products of 1779-49-3) was used in this study.

Methyltriphenylphosphonium bromide(cas: 1779-49-3) is a lipophilic molecule with a cation allowing for it to be used to deliver molecules to specific cell components. Also considered an antineoplastic agent.Related Products of 1779-49-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary