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Madar, D. J.’s team published research in Tetrahedron Letters in 42 | CAS: 189748-25-2

Tetrahedron Letters published new progress about 189748-25-2. 189748-25-2 belongs to bromides-buliding-blocks, auxiliary class Bromide,Nitro Compound,Benzene,Ester, name is Methyl 2-(5-bromo-2-nitrophenyl)acetate, and the molecular formula is C9H8BrNO4, Safety of Methyl 2-(5-bromo-2-nitrophenyl)acetate.

Madar, D. J. published the artcileSynthesis of N-arylated oxazolidinones via a palladium catalyzed cross coupling reaction. Application to the synthesis of the antibacterial agent Dup-721, Safety of Methyl 2-(5-bromo-2-nitrophenyl)acetate, the publication is Tetrahedron Letters (2001), 42(22), 3681-3684, database is CAplus.

A method for the intermol. coupling of aryl bromides and oxazolidinones is described. Application to intermediates useful for the preparation of a known class of antibacterial agent and the synthesis of the known antibacterial oxazolidinone Dup-721 are described.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Zhang, Yan’s team published research in Journal of Electroanalytical Chemistry in 830-831 | CAS: 52431-30-8

Journal of Electroanalytical Chemistry published new progress about 52431-30-8. 52431-30-8 belongs to bromides-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 2,5-Dibromo-3,4-dinitrothiophene, and the molecular formula is C20H19FN2O2, Recommanded Product: 2,5-Dibromo-3,4-dinitrothiophene.

Zhang, Yan published the artcileThree novel donor-acceptor type electrochromic polymers containing 2,3-bis(5-methylfuran-2-yl)thieno[3,4-b]pyrazine acceptor and different thiophene donors: Low-band-gap, neutral green-colored, fast-switching materials, Recommanded Product: 2,5-Dibromo-3,4-dinitrothiophene, the publication is Journal of Electroanalytical Chemistry (2018), 7-19, database is CAplus.

Three novel donor-accept type electrochromic polymers with very low band gap, PMFTTP, PMFBTTP and PMFMOTTP, were prepared via electrochem. polymerization, employing 2,3-bis(5-methylfuran-2-yl)thieno[3,4-b]pyrazine as the acceptor units and thiophene, butylthiophen and methoxythiophene as the donor units, resp. All the polymers were comparatively studied by cyclic voltammetry (CV), scanning electron micrographs (SEM), UV-visible-NIR spectroscopy and colorimetry. PMFTTP and PMFBTTP showed obvious color change from green color to brown in the oxidation process, while PMFMOTTP exhibited color change from brick red to dark gray. And the three polymers possessed very low optical band gaps in the following order: PMFTTP (1.23 eV) > PMFBTTP (0.88 eV) > PMFMOTTP (0.74 eV), which demonstrated the different election-donating ability of thiophene or its derivatives The electrochromic kinetic studies manifested that the polymers presented satisfactory optical contrasts (ΔT%) in the near IR region (NIR), which were 35%, 67% and 60% for PMFTTP, PMFBTTP and PMFMOTTP, resp. Also, the polymers also displayed short switching times (<1 s at any wavelengths), high coloration efficiencies (around ∼200 cm²/C) and outstanding robust stabilities, suggesting the probability of being the promising candidates for the electrochromic devices. In summary, the above pos. results, especially the neutral green color and the very low band gap, had important theor. significance for the application and development of electrochromic polymers.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Ju, Xiuping’s team published research in Electrochimica Acta in 238 | CAS: 52431-30-8

Electrochimica Acta published new progress about 52431-30-8. 52431-30-8 belongs to bromides-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 2,5-Dibromo-3,4-dinitrothiophene, and the molecular formula is C4Br2N2O4S, Synthetic Route of 52431-30-8.

Ju, Xiuping published the artcileSynthesis and electrochemical capacitive performance of thieno[3,4-b]pyrazine-based Donor-Acceptor type copolymers used as supercapacitor electrode material, Synthetic Route of 52431-30-8, the publication is Electrochimica Acta (2017), 36-48, database is CAplus.

Two novel donor-acceptor-donor type monomers were synthesized by using thieno[3,4-b]pyrazine (TPZ) as the acceptor units (A) and 3-methylthiophene or 3-methoxythiophene as the donor units (D). The as-prepared D-A-D monomers were named as MOTP and MTP, resp. These two monomers could be facilely polymerized on the glass carbon electrode (GCE) via a potentiostatic method, and the resultant D-A-D alternative conjugated polymers were referred as PMOTP and PMTP. The obtained conjugated polymers were routinely characterized by FT-IR, SEM and TGA at first. Then, as supercapacitor electrode materials, they were further investigated in detail by cyclic voltammetry (CV), constant galvanostatic charge-discharge (GCD) and electrochem. impedance spectroscopy (EIS) methods The GCD results showed that the polymer-modified GCEs had high specific capacitances of 678.2 and 319.1 F/g, for PMOTP and PMTP, resp., at a c.d. of 1 A/g. Excellent switching stabilities were also observed for both polymer-modified GCEs, with the high retention rates of 77.3% and 53.4% for PMOTP and PMTP, resp., after 1000 times of charge-discharge cycling at a c.d. of 10 A/g. Notably, the maximum energy densities of 22.4 Wh/kg and 7.94 Wh/kg were attained at the power d. of 0.55 kW/kg for the sym. supercapacitor based on PMOTP and PMTP, resp. The excellent performances of these two D-A-D type conjugated polymers make them to be the promising electrode materials for energy-storage and conversion applications.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Kakinami, Takaaki’s team published research in Ube Kogyo Koto Senmon Gakko Kenkyu Hokoku in 35 | CAS: 111865-47-5

Ube Kogyo Koto Senmon Gakko Kenkyu Hokoku published new progress about 111865-47-5. 111865-47-5 belongs to bromides-buliding-blocks, auxiliary class Benzenes, name is Mono(N,N,N-trimethyl-1-phenylmethanaminium) tribromide, and the molecular formula is C10H16Br3N, Recommanded Product: Mono(N,N,N-trimethyl-1-phenylmethanaminium) tribromide.

Kakinami, Takaaki published the artcileSelective bromination of aromatic amines by use of tetrabutylammonium tribromide and benzyltrimethylammonium tribromide, Recommanded Product: Mono(N,N,N-trimethyl-1-phenylmethanaminium) tribromide, the publication is Ube Kogyo Koto Senmon Gakko Kenkyu Hokoku (1989), 37-45, database is CAplus.

The title reactions in CH₂Cl₂-MeOH containing powd. CaCO₃ at room temperature gave, selectively, the mono-, di-, or tribromo-substituted aromatic amines in good yields.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Yasu, Yusuke’s team published research in Chemical Communications (Cambridge, United Kingdom) in 48 | CAS: 594-81-0

Chemical Communications (Cambridge, United Kingdom) published new progress about 594-81-0. 594-81-0 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 2,3-Dibromo-2,3-dimethylbutane, and the molecular formula is C65H82N2O18S2, Synthetic Route of 594-81-0.

Yasu, Yusuke published the artcileSunlight-driven synthesis of γ-diketones via oxidative coupling of enamines with silyl enol ethers catalyzed by [Ru(bpy)₃]²⁺, Synthetic Route of 594-81-0, the publication is Chemical Communications (Cambridge, United Kingdom) (2012), 48(43), 5355-5357, database is CAplus and MEDLINE.

A photosensitizer [Ru(bpy)₃]²⁺ catalyzes oxidative coupling reaction of enamines with silyl enol ethers under visible light irradiation by a Xe lamp or sunlight to produce γ-diketones. A 2e-oxidation process involved in this reaction is achieved by a combination of the photoexcited [Ru(bpy)₃]²⁺ species and duroquinone, a 2e-acceptor.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Lorion, Melanie M.’s team published research in Chemistry – A European Journal in 26 | CAS: 401-55-8

Chemistry – A European Journal published new progress about 401-55-8. 401-55-8 belongs to bromides-buliding-blocks, auxiliary class Fluoride,Bromide,Aliphatic hydrocarbon chain,Ester, name is Ethylbromofluoroacetate, and the molecular formula is C4H6BrFO2, Recommanded Product: Ethylbromofluoroacetate.

Lorion, Melanie M. published the artcileCobalt-Catalyzed α-Arylation of Substituted α-Bromo α-Fluoro β-Lactams with Diaryl Zinc Reagents: Generalization to Functionalized Bromo Derivatives, Recommanded Product: Ethylbromofluoroacetate, the publication is Chemistry – A European Journal (2020), 26(58), 13163-13169, database is CAplus and MEDLINE.

A cobalt-catalyzed cross-coupling of α-bromo α-fluoro β-lactams with diarylzinc or diallylzinc reagents is herein disclosed. The protocol proved to be general, chemoselective and operationally simple allowing the C4 functionalization of β-lactams. The substrate scope was expanded to α-bromo lactams and amides, α-bromo lactones and esters as well as N- and O-containing heterocycles.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Laufer, Stefan’s team published research in Organic & Biomolecular Chemistry in 6 | CAS: 66197-72-6

Organic & Biomolecular Chemistry published new progress about 66197-72-6. 66197-72-6 belongs to bromides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyl (bromomethyl)phosphonate, and the molecular formula is C5H12BrO3P, Computed Properties of 66197-72-6.

Laufer, Stefan published the artcileTowards the improvement of the synthesis of novel 4(5)-aryl-5(4)-heteroaryl-2-thio-substituted imidazoles and their p38 MAP kinase inhibitory activity, Computed Properties of 66197-72-6, the publication is Organic & Biomolecular Chemistry (2008), 6(3), 437-439, database is CAplus and MEDLINE.

A series of 2-alkylsulfanyl-4-(4-fluorophenyl)-5-(2-aminopyridin-4-yl)-substituted imidazoles was prepared and interaction possibilities of the 2-thioether moiety with phosphate/ribose-binding pockets of p38 MAP kinase were investigated. Introduction of the alkyl/benzyl amino function at the pyridine moiety was carried out via nucleophilic substitution or via palladium-catalyzed aryl-C-N bond formation.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Tripathi, Ayushi’s team published research in Macromolecules (Washington, DC, United States) in 53 | CAS: 111865-47-5

Macromolecules (Washington, DC, United States) published new progress about 111865-47-5. 111865-47-5 belongs to bromides-buliding-blocks, auxiliary class Benzenes, name is Mono(N,N,N-trimethyl-1-phenylmethanaminium) tribromide, and the molecular formula is C16H14O6, SDS of cas: 111865-47-5.

Tripathi, Ayushi published the artcileOptimization of Thermoelectric Properties of Polymers by Incorporating Oligoethylene Glycol Side Chains and Sequential Solution Doping with Preannealing Treatment, SDS of cas: 111865-47-5, the publication is Macromolecules (Washington, DC, United States) (2020), 53(16), 7063-7072, database is CAplus.

Two types of p-type thermoelec. (TE) polymers with alkyl (PCPDTSBT) and oligoethylene glycol (OEG) side chains (PCPDTSBT-A) on an sp²-hybridized olefinic bis(alkylsulfanyl)methylene-substituted cyclopentadithiophene backbone are synthesized. Interestingly, the OEG-substituted polymer, PCPDTSBT-A, exhibits significant self-doping compared to PCPDTSBT, where the polaron d. of the former is 2.3 × 10¹⁶ mm^-3 (vs. 7.9 × 10¹⁴ mm^-3 for PCPDTSBT) without external doping. Changing the side chains also induces a completely different polymer chain orientation in the PCPDTSBT-A (face-on) and PCPDTSBT (edge-on) films. The effect of doping with 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F₄TCNQ) on the morphol. and TE properties of the polymers with different side chains is studied. Sequential solution doping (SQD) is performed by overcoating the preannealed polymer films with F₄TCNQ solution, which affords highly effective doping without disrupting the morphol. of the crystalline films, especially for PCPDTSBT-A with OEG side chains. Resulting from the synergistic effect of the OEG side chains and SQD, PCPDTSBT-A exhibits remarkably improved elec. conductivity (53.8 S cm^-1) with a higher power factor (40.4μW m^-1 K^-2), compared to PCPDTSBT, for which the maximum elec. conductivity is 1.4 S cm^-1 and the power factor is 1.8μW m^-1 K^-2. In addition, the transport coefficient of PCPDTSBT-A, determined by applying the Kang-Snyder model (2.40 × 10^-2 S cm^-1), is superior to that of PCPDTSBT (3.59 × 10^-3 S cm^-1), thereby showing the excellence of the developed strategy for improving the performance of TE polymers.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Yu, Songjie et al. published their research in Journal of the American Chemical Society in 2015 | CAS: 80480-15-5

2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5) belongs to organobromine compounds. Bromo compounds are employed in a variety of metal-catalyzed coupling reactions. They are also ideal candidates for the synthesis of Grignard reagents that have wide-applicability in organic synthesis. alpha-Bromoesters are employed in the Reformatsky reaction for the synthesis of beta-hydroxyesters. In the pharmaceutical industry organo bromine derivatives are used as sedatives, vasodilators, antiseptic agents, and anticancer agents.SDS of cas: 80480-15-5

Rhodium-Catalyzed C-H Activation of Phenacyl Ammonium Salts Assisted by an Oxidizing C-N Bond: A Combination of Experimental and Theoretical Studies was written by Yu, Songjie;Liu, Song;Lan, Yu;Wan, Boshun;Li, Xingwei. And the article was included in Journal of the American Chemical Society in 2015.SDS of cas: 80480-15-5 The following contents are mentioned in the article:

Rh(III)-catalyzed C-H activation assisted by an oxidizing directing group has evolved to a mild and redox-economic strategy for the construction of heterocycles. Despite the success, these coupling systems are currently limited to cleavage of an oxidizing N-O or N-N bond. Cleavage of an oxidizing C-N bond, which allows for complementary carbocycle synthesis, is unprecedented. α-Ammonium acetophenones with an oxidizing C-N bond were designed as substrates for Rh(III)-catalyzed C-H activation under redox-neutral conditions. The coupling with α-diazo esters afforded benzocyclopentanones, and the coupling with unactivated alkenes such as styrenes and aliphatic olefins gave ortho-olefinated acetophenoes. In both systems the reactions proceeded with a broad scope, high efficiency, and functional group tolerance. Also, efficient 1-pot coupling of diazo esters was realized starting from α-bromoacetophenones and triethylamine. The reaction mechanism for the coupling with diazo esters was studied by a combination of exptl. and theor. methods. In particular, three distinct mechanistic pathways were scrutinized by DFT studies, which revealed that the C-H activation occurs via a C-bound enolate-assisted concerted metalation-deprotonation mechanism and is rate-limiting. In subsequent C-C formation steps, the lowest energy pathway involves two rhodium carbene species as key intermediates. This study involved multiple reactions and reactants, such as 2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5SDS of cas: 80480-15-5).

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Li, Yi-Shan et al. published their research in Scientific Reports in 2019 | CAS: 80480-15-5

2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5) belongs to organobromine compounds. Many of the organo bromine compounds are relatively nonpolar. Bromine is more electronegative than carbon (2.8 vs 2.5) and hence the carbon in a carbonbromine bond is electrophilic in nature. The principal reactions for organobromides include dehydrobromination, Grignard reactions, reductive coupling, and nucleophilic substitution.Formula: C18H11BrO

Direct in situ labeling of target drugs with a fluorophore probe to improve MALDI-MS detection sensitivity in micro-liter plasma was written by Li, Yi-Shan;Lu, Chi-Yu. And the article was included in Scientific Reports in 2019.Formula: C18H11BrO The following contents are mentioned in the article:

Nonsteroidal anti-inflammatory drugs (NSAIDs) are widely used for symptomatic relief from fever, inflammation, and chronic pain associated with a variety of human disorders. Long-term usage of these drugs can result in severe syndromes; hence, their dose should be controlled carefully and their side effects such as Stevens-Johnson syndrome, toxic epidermal necrolysis, phototoxicity, acute interstitial nephritis, gastrointestinal bleeding, cardiovascular diseases, and liver injury should be considered. Furthermore, the widely used combination of NSAIDs as over-the-counter (OTC) drugs with other drugs leads to adverse drug-drug interactions. Therefore, development of a throughput method to rapidly screen 20 NSAIDs in biol. samples is necessary to safeguard human health. In this work, we selected a suitable fluorophore probe coupled with in situ micro-labeling (<2 min) on stainless plate for the fast detection of NSAIDs in plasma samples at the micro-liter level (5μL) without complicated sample preparation and separation Every step undertaken in the protocol was also at the micro-liter level; thus, a small amount of blood collected from the human finger will suffice to determine the drug concentration in blood using the proposed method. Furthermore, the proposed method we developed was also matched the modern trends of green anal. chem. towards miniaturization of anal. methodologies. This study involved multiple reactions and reactants, such as 2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5Formula: C18H11BrO).

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary