Jessica.F

Wang, Yu-Cheng’s team published research in Journal of Materials Chemistry B: Materials for Biology and Medicine in 2022 | CAS: 13465-09-3

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.Reference of Indium(III) bromide

In 2022,Wang, Yu-Cheng; Kegel, Laurel L.; Knoff, David S.; Deodhar, Bhushan S.; Astashkin, Andrei V.; Kim, Minkyu; Pemberton, Jeanne E. published an article in Journal of Materials Chemistry B: Materials for Biology and Medicine. The title of the article was 《Layered supramolecular hydrogels from thioglycosides》.Reference of Indium(III) bromide The author mentioned the following in the article:

Low mol. weight hydrogels are made of small mols. that aggregate via noncovalent interactions. Here, comprehensive characterization of the phys. and chem. properties of hydrogels made from thioglycolipids of the disaccharides lactose and cellobiose with simple alkyl chains is reported. While thiolactoside hydrogels are robust, thiocellobioside gels are metastable, precipitating over time into fibrous crystals that can be entangled to create pseudo-hydrogels. Rheol. confirms the viscoelastic solid nature of these hydrogels with storage moduli ranging from 10-600 kPa. Addnl., thiolactoside hydrogels are thixotropic which is a desirable property for many potential applications. Freeze-fracture electron microscopy of xerogels shows layers of stacked sheets that are entangled into networks. These structures are unique compared to the fibers or ribbons typically reported for hydrogels. Differential scanning calorimetry provides gel-to-liquid phase transition temperatures ranging from 30 to 80°C. Prodan fluorescence spectroscopy allows assignment of phase transitions in the gels and other lyotropic phases of high concentration samples. Phase diagrams are estimated for all hydrogels at 1-10 wt% from 5 to ≥ 80°C. These hydrogels represent a series of interesting materials with unique properties that make them attractive for numerous potential applications. In the experiment, the researchers used many compounds, for example, Indium(III) bromide(cas: 13465-09-3Reference of Indium(III) bromide)

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Yang, Yuting’s team published research in Journal of Materials Chemistry A: Materials for Energy and Sustainability in 2019 | CAS: 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. Related Products of 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.

The author of 《Phosphine-based porous aromatic frameworks for gold nanoparticle immobilization with superior catalytic activities》 were Yang, Yuting; Wang, Tienan; Jing, Xiaofei; Zhu, Guangshan. And the article was published in Journal of Materials Chemistry A: Materials for Energy and Sustainability in 2019. Related Products of 623-24-5 The author mentioned the following in the article:

Triphenylphosphine (PPh3) and diphenyl-2-pyridylphosphine (PPh2Py), which are usually used as ligands to protect gold nanoparticles (AuNPs), were selected as monomers to build up porous aromatic frameworks (PAFs) with high surface areas for AuNPs immobilization. Using the cost-effective Friedel-Crafts alkylation reaction, phosphine-based PAFs (PAF-93 and PAF-94) were successfully synthesized, and they possessed high stabilities as well as high surface areas. AuNPs with sizes of smaller than 2 nm in Au@PAF-94 were obtained owing to the stronger interactions with P and N donors in PAF skeletons, thus leading to high catalytic activities. According to the pseudo-first-order kinetics, the kapp (apparent rate constant) value for Au@PAF-94 in the reduction reaction of 4-nitrophenol is 2.2 × 10-2 s-1, which is superior to most of the presently reported AuNP catalysts with solid supports under similar conditions. Addnl., Au@PAFs exhibited excellent recyclability and retained their high catalytic activities after five successful cycles.1,4-Bis(bromomethyl)benzene(cas: 623-24-5Related Products of 623-24-5) was used in this study.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Li, Wan’s team published research in Journal of Materials Chemistry C: Materials for Optical and Electronic Devices in 2021 | CAS: 523-27-3

9,10-Dibromoanthracene(cas: 523-27-3) is synthesized by the bromination of anthracene. The bromination reaction is carried out at room temperature using carbon tetrachloride as a solvent. Using 80-85% anthracene as raw material, adding bromine to react for half an hour, the yield is 83-88%.Application In Synthesis of 9,10-Dibromoanthracene

Li, Wan; Chasing, Pongsakorn; Benchaphanthawee, Wachara; Nalaoh, Phattananawee; Chawanpunyawat, Thanyarat; Kaiyasuan, Chokchai; Kungwan, Nawee; Namuangruk, Supawadee; Sudyoadsuk, Taweesak; Promarak, Vinich published an article in 2021. The article was titled 《Intramolecular hydrogen bond-enhanced electroluminescence performance of hybridized local and charge transfer (HLCT) excited-state blue-emissive materials》, and you may find the article in Journal of Materials Chemistry C: Materials for Optical and Electronic Devices.Application In Synthesis of 9,10-Dibromoanthracene The information in the text is summarized as follows:

The hybridized local and charge transfer (HLCT) excited state is a successful strategy to produce both high external and internal quantum efficiencies. Based on the HLCT scheme, two isomeric donor-acceptor (D-A)-type excited-state intramol. proton transfer (ESIPT) chromophores of o-hydroxyphenyl phenanthroimidazole (HPI)-based emissive mols. (mTAHPI and pTAHPI) and their OH-protected derivatives (pTAPI) were designed and explored for organic light-emitting diodes (OLEDs). The photophys. study and d. functional theory (DFT) calculations revealed that all mols. possessed the HLCT excited-state characters without exhibiting ESIPT photophys. properties, whereas the NMR spectroscopy, single-crystal and phys. property analyses discovered the existence of strong intramol. H bonds and intermol. interactions in both mTAHPI and pTAHPI. Consequently, their OLEDs displayed blue emissions with a narrow full width at half maximum (65-68 nm) and achieved excellent electroluminescence (EL) performance with a low turn-on voltage of 2.8 V. Particularly, pTAHPI-based devices showed the highest maximum external quantum effciency (EQE) of 8.13% with an ultra-high brightness of 18 100 cd m-2. The maximum singlet exciton utilization efficiency (ηs) of the device was estimated to be as high as 94%, which is among the best results of blue electroluminescence to our knowledge. After reading the article, we found that the author used 9,10-Dibromoanthracene(cas: 523-27-3Application In Synthesis of 9,10-Dibromoanthracene)

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Kim, Soyeon’s team published research in Journal of Industrial and Engineering Chemistry (Amsterdam, Netherlands) in 2021 | CAS: 17696-11-6

8-Bromooctanoic acid(cas: 17696-11-6) acid is used in the synthesis of 8-(N-Methyl-4,4′-bipyridinyl)- octanoic acid. 8-Mercaptooctanoic acid was prepared from 8-bromooctanoic acid. And 8-Bromooctanoic Acid is a useful compound for sonodynamic therapy.HPLC of Formula: 17696-11-6

HPLC of Formula: 17696-11-6In 2021 ,《Rose bengal conjugated gadolinium complex as a new multimodal imaging agent targeting presynaptic vesicular glutamate transporters》 was published in Journal of Industrial and Engineering Chemistry (Amsterdam, Netherlands). The article was written by Kim, Soyeon; Kim, Hee-Kyung; Baek, Ah Rum; Sung, Bokyung; Yang, Byeong Woo; Kim, Yeoun-Hee; Lee, Jung-jin; Yang, Ji-ung; Shin, Chang-Hoon; Jung, Hoesu; Kim, Minsup; Cho, Art E.; Lee, Taekwan; Chang, Yongmin. The article contains the following contents:

Glutamate is an important excitatory neurotransmitter, and vesicular glutamate transporters (VGLUTs) are critical in regulating the extent of glutamate release. Because initial increase and late stage decrease in VGLUT expression were implicated in progressive Alzheimer′s disease (AD), VGLUTs can be a new imaging target for diagnosing AD. In this study, we have designed and synthesized a new multimodal gadolinium contrast agent conjugated with rose bengal to target VGLUTs (Gd-DO3A-RB). In addition to high kinetic and pH stability, magnetic resonance and fluorescence imaging using Gd-DO3A-RB showed high affinity to VGLUT1. Using the AD animal model (5XFAD), in vivo MRI with a Gd-DO3A-RB showed less MR signal enhancement in 5XFAD mouse brain than that of age-matched normal C57BL/6 mouse, suggesting a late stage decrease in VGLUT expression in AD animal model. Therefore, this new VGLUT targeting gadolinium contrast agent demonstrated a strong potential as a new diagnostic tool for AD with multimodal imaging capability. After reading the article, we found that the author used 8-Bromooctanoic acid(cas: 17696-11-6HPLC of Formula: 17696-11-6)

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Mhadhbi, Oumaima’s team published research in Tetrahedron in 2022-08-13 | 401-78-5

Tetrahedron published new progress about Aryl bromides Role: RCT (Reactant), RACT (Reactant or Reagent). 401-78-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H4BrF3, Reference of 401-78-5.

Mhadhbi, Oumaima; Liu, Linhao; Benzai, Amal; Mellah, Besma; Besbes, Neji; Ollivier, Jerome; Cordier, Marie; Doucet, Henri published the artcile< Palladium-catalyzed direct C5-arylation or C4,C5-diarylation of 2-alkylisothiazol-3-ones>, Reference of 401-78-5, the main research area is aryl alkylisothiazolone preparation regioselective; alkylisothiazolone aryl bromide paladium catalyst arylation.

The regioselectivity of the Pd-catalyzed direct arylation of unsubstituted 2-alkylisothiazol-3(2H)-ones was investigated. Conditions for the regioselective palladium-catalyzed direct C5-arylation of 2-alkylisothiazol-3-ones using aryl bromides as the coupling partners are reported. This procedure tolerates a wide variety of substituents such as nitro, nitrile, ester, chloro, fluoro, trifluoromethyl, trifluoromethoxy, difluoromethoxy at para-, meta- and also ortho-positions on the aryl bromide. Both methyl- and octyl-substituents at 2-position of alkylisothiazol-3-ones are tolerated. Moreover, at a more elevated temperature in the presence of a larger excess of the aryl bromide, the access to the C4,C5-diarylated alkylisothiazol-3-ones is also possible, revealing that the C4-position of isothiazol-3(2H)-ones is reactive for direct arylation when the C5-position is blocked. Therefore, this method provides a one pot access to a wide variety of isothiazolinone derivatives allowing to modify easily their biol. properties.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Mel’nikov, N N’s team published research in Doklady Akademii Nauk SSSR in 1953 | 215949-57-8

Doklady Akademii Nauk SSSR published new progress about Halogens. 215949-57-8 belongs to class bromides-buliding-blocks, and the molecular formula is C9H9BrO2, Product Details of C9H9BrO2.

Mel’nikov, N. N.; Turetskaya, R. Kh.; Baskakov, Yu. A.; Boyarkin, A. N.; Kuznetsova, M. S. published the artcile< The structure and the physiological activity of substituted phenylacetic and naphthylacetic acids>, Product Details of C9H9BrO2, the main research area is .

Introduction of halogen into the ring of PhCH2CO2H increases the physiol. activity, which is greatest with Cl; Br is less active; iodine in the p-position does not increase activity. Most active are the 2-halo, least active the 4-halo derivatives, while the 3-halo derivatives are intermediate. This is the reverse order of activity in comparison with phenoxyacetic acids. Introduction of a 2nd halogen does not change the physiol. activity, while a 3rd halogen can either reduce or increase activity. A Me group in the p-position reduces the activity, and 3 Me groups reduce it very much. A smaller decrease in activity is caused by a p-MeO group. Halogenation of m-MeC6H4OCH2CO2H causes increased activity, the greatest activity resulting from 4-substitution, and lesser activity from 2-halogenation. With 2,4-D as the standard which gave 100% increase of wheat coleoptile growth at 1 mg./l. concentration, and heteroauxin as the standard which gave 100% increase of kidneybean root growth, the following physiol. results were obtained in plant tests; (in above order, with 1, 10, and 100 mg./l. concentrations tested for the wheat growth, and 10, 50 and 100 mg./l. concentrations for the kidney bean growth). Substituted phenylacetic acids (substituents given): H, m. 76°, -2%, +45%, -, -, +4%, 0%; ο-Cl, m. 95°, +70%, +84%, – +5%, +150%, -; m-Cl, m. 74°, +9%, +61%, -, -, +62%, +260%; p-Cl, m. 106°, +13%, +71%, -, -, +55%, +91%; ο-Br, m. 104°, +7%, +71%, -, -, +33%, +104%; p-Br, m. 114°, +2%, +80%, -, -, 0%, +8%; p-I, m. 135°, -4%, -6%, -, -, 0%, +21%; 2,4-di-Cl, m. 131°, +10%, +80%, -, -, +58%, +162%; 2,5-di-Cl, m. 105°, +13%, +80%, -, -, +30%, +120%; 2,3,4-tri-Cl, m. 136°, +40%, +71%, -, -, +150%, -60%; 2,4,5-tri-Cl analog, m. 126°, 0%, +56%, -, -, +98%, +100%; p-MeO, m. 83°, -, +20%, +20%, -, 0%, 0%; p-Me, m. 92°, -, +5%, +6%, -, 0%, 0%; 4,3-ClMe, m. 83°, +22%, +73%, -, -, +7%, +69%; 4,3-BrMe, m. 81°, +20%, +71%, -, -, 14%, +90%; 6,3-ClMe, m. 86°, -2%, +40%, -, -, 0%, -25%; 6,3-BrMe, m. 82°, -8%, +59%, -, -, +66%, +66%;, 2,4-ClMe, m. 106°, +13%, +44%, -, -, +12%, +33%; 3,4-Me(MeO), m. 127°, -, +1%, +34%, -, 0%, 0%; 2,4,5-Tri-Me, m. 117°, -, +3%, -6%, -, -21%, -25%; 2,4-Me(MeO), m. 107°, -, -12%, +25%, -, 0%, 0%. In substituted naphthylalkylcarboxylic acids it was shown that removal of CO2H from the ring by more than 1 C atom reduces the physiol. activity and the compounds with an acid group at the 1-position on C10H8 skeleton are the only active ones; substances with 2-substitution are inactive. Substitution of alkyl groups or MeO groups into the C10H8 ring leads to sharp decline in activity. The following results were obtained in biol. tests (same standards as above): Substituted 1-naphthaleneacetic acids (substituents given): H, m. 131°, +77%, + 169%, -, -, +92%, -; 4-MeO, m. 144°, +2%, -12%, -, +10%, +27%, +9%; 4-Me, m. 148°, +1%, +1%, +4%, +36%, +24%, -10%; 4-Et, m. 129°, +9%, -, -, +9%, +6%, +27%; 4-Pr, m. 119°, -5%, -7%, -, +24%, +50%, +32%; 4-Bu, m. 110°, -, -14%, -, +21%, +20%, +33%. 1-C10H7COCH2CH2CO2H, m. 132°, +9%, +60%, -, -, -, -; 1-C10H7(CH2)3CO2H, m. 1602, +9%, +46%, -, -, -, -; 2-C10H7COCH2CH2CO2H, m. 174°, -25%, -9%, -, -, -, -, 2-C10H7(CH2)3CO2H, m. 109°, -3%, -5%, -, -, -, -. Most of the above acids were prepared by the Willgerodt reaction others through the nitriles from the corresponding benzyl halides.

Doklady Akademii Nauk SSSR published new progress about Halogens. 215949-57-8 belongs to class bromides-buliding-blocks, and the molecular formula is C9H9BrO2, Product Details of C9H9BrO2.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Alam, Ryan M’s team published research in Synthesis in 2021-12-31 | 3959-07-7

Synthesis published new progress about Amides Role: SPN (Synthetic Preparation), PREP (Preparation). 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Recommanded Product: 4-Bromobenzylamine.

Alam, Ryan M.; Keating, John J. published the artcile< An Expedient Approach to Pyrazolo[3,4-b]pyridine-3-carboxamides via Palladium-Catalyzed Aminocarbonylation>, Recommanded Product: 4-Bromobenzylamine, the main research area is iodo fluorobenzyl pyrazolopyridine formic acid amine palladium catalyst aminocarbonylation; fluorobenzyl pyrazolopyridine carboxamide preparation.

A series of novel 1,3-disubstituted pyrazolo[3,4- b]pyridine-3-carboxamide derivatives was prepared by introducing the 3-carboxamide moiety using palladium-catalyzed aminocarbonylation methodol. and employing CO gas generated ex-situ using a two-chamber reactor (COware ). The functional group tolerance of this optimized aminocarbonylation protocol was highlighted through the synthesis of a range of diversely substituted C-3 carboxamide pyrazolo[3,4- b]pyridines in excellent yields of up to 99%.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Wu, Guojiao’s team published research in Angewandte Chemie, International Edition in 2014 | 14062-30-7

Angewandte Chemie, International Edition published new progress about Amino acid esters Role: RCT (Reactant), RACT (Reactant or Reagent). 14062-30-7 belongs to class bromides-buliding-blocks, and the molecular formula is C10H11BrO2, Safety of Ethyl 2-(3-bromophenyl)acetate.

Wu, Guojiao; Deng, Yifan; Wu, Chaoqiang; Zhang, Yan; Wang, Jianbo published the artcile< Synthesis of α-Aryl Esters and Nitriles: Deaminative Coupling of α-Amino-Esters and α-Aminoacetonitriles with Arylboronic Acids>, Safety of Ethyl 2-(3-bromophenyl)acetate, the main research area is nitrile benzeneacetonitrile preparation; benzeneacetic areneacetic acid ester preparation; arenes; boron; diazo compounds; nitriles; synthetic methods.

Transition-metal-free synthesis of α-aryl esters and nitriles using arylboronic acids with α-amino esters and α-(amino)acetonitrile derivatives, resp., as starting materials has been developed. The reaction represents a rare case of converting C(sp3)-N bonds (carbon-nitrogen bonds) into C(sp3)-C(sp2) bonds (carbon-carbon bonds). The reaction conditions are mild, demonstrate good functional-group tolerance, and can be scaled up. The synthesis of the target compounds was achieved using glycine ester hydrochloride, leucine ester hydrochloride, aspartate ester hydrochloride, alanine ester hydrochloride as starting materials in a reaction with (aryl)boronic acids. The title compounds thus formed included benzeneacetic acid esters, 1-naphthaleneacetic acid ester, benzenepropanoic acid esters, α-phenyl-1H-indole-3-propanoic acid ester, benzenebutanoic acid ester and similar substances. A reaction of (aryl)boronic acids with α-(amino)acetonitrile gave α-(alkyl)benzeneacetonitrile derivatives Nitriles included α-(hexyl)benzeneacetonitrile, α-phenyl-3-thiophenepropanenitrile and similar compounds

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Tang, Shi’s team published research in Angewandte Chemie, International Edition in 2021-09-20 | 401-78-5

Angewandte Chemie, International Edition published new progress about Amino acid esters Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 401-78-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H4BrF3, Synthetic Route of 401-78-5.

Tang, Shi; Xu, Zhen-Hua; Liu, Ting; Wang, Shuo-Wen; Yu, Jian; Liu, Jian; Hong, Yu; Chen, Shi-Lu; He, Jin; Li, Jin-Heng published the artcile< Radical 1,4-Aryl Migration Enabled Remote Cross-Electrophile Coupling of α-Amino-β-Bromo Acid Esters with Aryl Bromides>, Synthetic Route of 401-78-5, the main research area is arylated amino acid ester regioselective diastereoselective preparation; aminobromo acid ester aryl bromide tandem coupling nickel catalyst; amino acid esters; cross-electrophile coupling; nickel radical relay; radical aryl migration.

Here an unprecedented, efficient nickel-catalyzed radical relay was reported for the remote cross-electrophile coupling of β-bromo-α-benzylamino acid esters with aryl bromides via 1,4-aryl migration/arylation cascades. β-Bromo-α-benzylamino acid esters were considered as unique mol. scaffolds allowing for aryl migration reactions, which were conceptually novel variants for the radical Truce-Smiles rearrangement. This reaction enabled the formation of two new C(sp3)-C(sp2) bonds using a bench-stable Ni/bipyridine/Zn system featuring a broad substrate scope and excellent diastereoselectivity, which provided an effective platform for the remote aryl group migration and arylation of amino acid esters via redox-neutral C(sp3)-C(sp2) bond cleavage. Mechanistically, this cascade reaction was accomplished by combining two powerful catalytic cycles consisting of a cross-electrophile coupling and radical 1,4-aryl migration through the generation of C(sp3)-centered radical intermediates from the homolysis of C(sp3)-Br bonds and the switching of the transient alkyl radical into a robust α-aminoalkyl radical.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Gao, Xin’s team published research in Polymer in 2020-10-20 | 184239-35-8

Polymer published new progress about Electric current-potential relationship. 184239-35-8 belongs to class bromides-buliding-blocks, and the molecular formula is C26H18Br2, Category: bromides-buliding-blocks.

Gao, Xin; Zhang, Qirui; Hu, Jianfeng; Zhang, Hao published the artcile< Ferrocene-containing cross-conjugated polymers synthesized by palladium-catalyzed cross-coupling polymerization>, Category: bromides-buliding-blocks, the main research area is ferrocene conjugated polymer palladium catalyzed coupling polymerization.

We have exploited an extremely efficient and versatile route to prepare ferrocene-containing cross-conjugated polymers (oligomers) in the main-chain. Using a variety of 1,1′-disubstituted ferrocenyl ketone-derived N-tosylhydrazones, reaction with aryl halides under palladium-catalysis gave 14 poly(ferrocenylene-vinylidene) cross-conjugated polymers (oligomers) in 50-80% yield. It was noteworthy that all the polymeric products were well soluble in common organic solvents, endowing them with high solution processability. Pendant double bonds of these cross-conjugated polymers (oligomers) were suitable towards further processing with high reactivity. The optical properties of the polymers (oligomers) were examined The electrochem. properties of polymers (oligomers) were investigated by cyclic voltammetry (CV) and suggested a quasi-reversible process. Moreover, these cross-conjugated polymers (oligomers) proved thermally stable and demonstrated promising potential as low-migration burning rate catalysts.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary