Category: bromides-buliding-blocks

《Triphenylamine-based hole transporting materials with thiophene-derived bridges for perovskite solar cells》 was written by Wu, Guohua; Zhang, Yaohong; Kaneko, Ryuji; Kojima, Yoshiyuki; Sugawa, Kosuke; Islam, Ashraful; Otsuki, Joe; Liu, Shengzhong. Related Products of 3141-27-3This research focused ontriphenylamine thiophene hole transport material perovskite solar cell. The article conveys some information:

A triphenylamine-based compound containing benzoyl[1,2-b:4,5-b’]dithiophene (BDT) derivative (BTPA-2) has been synthesized and employed in FA0.85MA0.15PbI3 perovskite solar cells (PSCs) as the hole transporting material (HTM). The reference BTPA-1 containing thiophene bridge was also prepared for a comparative study. Compared to the thiophene unit in BTPA-1, the hexyloxy substituted BDT unit in BTPA-2 made the HOMO energy level lower. The more conjugated system with the BDT unit can improve the conductivity and hole mobility. The BTPA-1 and BTPA-2 based FA0.85MA0.15PbI3 PSCs showed the best power conversion efficiencies (PCE) of 12.76% and 13.97%, resp. Larger Voc and higher Jsc for the BTPA-2 based PSC were attributed to its reduced interfacial recombination and more conjugated system compared to the BTPA-1 based PSCs. More hydrophobic property of BTAP-2 made its PSC exhibit better environmental stability than BTPA-1. The results came from multiple reactions, including the reaction of 2,5-Dibromothiophene(cas: 3141-27-3Related Products of 3141-27-3)

2,5-Dibromothiophene(cas: 3141-27-3) , is mainly used as pharmaceutical intermediate and synthesis intermediate. 2,5-Dibromothiophene may be used as starting reagent for the synthesis of α,α′-didecylquater-, -quinque- and -sexi-thiophenes.Related Products of 3141-27-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Toward a two-dimensional supramolecular organic framework with high degree of internal order via amphiphilic modification》 was written by Yin, Zhi-Jian; Jiang, Shu-Yan; Liu, Na; Qi, Qiao-Yan; Wu, Zong-Quan; Zhan, Tian-Guang; Zhao, Xin. Electric Literature of C18H12Br3NThis research focused ontwo dimensional supramol organic framework amphiphilic modification. The article conveys some information:

Solution-phase self-assembly of two-dimensional (2D) networks with a high degree of internal order and long-range periodicity is a great challenge. Herein, we report a rational design to improve 2D self-assembly in water through amphiphilic modification of the building block. An amphiphilic tritopic mol. (1) is designed and synthesized by introducing three hydrophilic oligo(ethylene glycol) moieties and three hydrophobic hexyl chains. The assembly of 1 and cucurbit[8]uril (CB[8]) leads to the formation of a Janus 2D supramol. organic framework (SOF), which further creates unique bilayer supramol. networks and exhibits an unprecedentedly high degree of internal order and long-range periodicity. In contrast, the assembly of a nonamphiphilic analog (2) with CB[8] only generates a 2D SOF with a lower degree of internal order, suggesting that the inherent amphiphilicity of 1 plays a crucial role in improving its 2D self-assembly in aqueous phase. In the experimental materials used by the author, we found Tris(4-bromophenyl)amine(cas: 4316-58-9Electric Literature of C18H12Br3N)

In general, Tris(4-bromophenyl)amine(cas: 4316-58-9) is often used in the synthesis of porous luminescent covalent–organic polymers (COPs)Electric Literature of C18H12Br3N

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Theoretical and photovoltaic investigations of 1,3,5-triazine-based photosensitizers achieving highly efficient DSSCs》 was written by Zhang, Hai; Zang, Xu-Feng; Hong, Yan-Ping; Chen, Zhen-E.. COA of Formula: C4H2Br2SThis research focused ontriazine based dye sensitized solar cell. The article conveys some information:

By establishing a new push-pull relationship, three novel metal-free organic sensitizers based on A′-π-A framework were synthesized, in which A′ and A represent the auxiliary acceptor (triazine) and the main acceptor (cyanoacrylic acid), resp., coded ZS03, ZS04, and ZS05. In this paper, the mol. structure, photophys. property, electrochem. property, theor. calculation, and photovoltaic property of these three sensitizers are described in detail. The results show that the addnl. acceptor and alkyl chains significantly affect the mol.′s energy level and spatial structure. In terms of photovoltaic characteristics, the ZS03-based device exhibits the best power conversion efficiency (PCE) of 7.11%, corresponding to a short-circuit photocurrent d. (Jsc) of 14.31 mA cm-2, an open-circuit voltage (Voc) of 708 mV, and a fill factor (FF) of 0.723, which is the highest efficiency among the known A′-π-A type dyes. It can be determined that the improvement of PCE is mainly due to the combination of the following two factors: the π-spacer with appropriate length and the alkyl chain with a reasonable layout. In the experimental materials used by the author, we found 2,5-Dibromothiophene(cas: 3141-27-3COA of Formula: C4H2Br2S)

2,5-Dibromothiophene(cas: 3141-27-3) , is mainly used as pharmaceutical intermediate and synthesis intermediate. 2,5-Dibromothiophene polymerizes by debromination with magnesium catalyzed by nickel compounds to form poly(2,5- thienylene) .COA of Formula: C4H2Br2S

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Synthesis and cytotoxic activity of new vindoline derivatives coupled to natural and synthetic pharmacophores》 was written by Keglevich, Andras; Danyi, Leonetta; Rieder, Alexandra; Horvath, Dorottya; Szigetvari, Aron; Dekany, Miklos; Szantay, Csaba Jr.; Latif, Ahmed Dhahir; Hunyadi, Attila; Zupko, Istvan; Keglevich, Peter; Hazai, Laszlo. Product Details of 2623-87-2This research focused onvindoline derivative anticancer antiproliferative agent cytotoxicity breast cervical cancer; IC50 values; Vinca alkaloids; anticancer drugs; organic synthesis; pharmacophores; vindoline. The article conveys some information:

New Vinca alkaloid derivatives were synthesized to improve the biol. activity of the natural alkaloid vindoline. To this end, experiments were performed to link vindoline with various structural units, such as amino acids, a 1,2,3-triazole derivative, morpholine, piperazine and N-methylpiperazine. The structure of the new compounds was characterized by NMR spectroscopy and mass spectrometry (MS). Several compounds exhibited in vitro antiproliferative activity against human gynecol. cancer cell lines with IC50 values in the low micromolar concentration range. In addition to this study using 4-Bromobutanoic acid, there are many other studies that have used 4-Bromobutanoic acid(cas: 2623-87-2Product Details of 2623-87-2) was used in this study.

4-Bromobutanoic acid(cas: 2623-87-2) belongs to carboxylic acids. The chief chemical characteristic of the carboxylic acids is their acidity. They are generally more acidic than other organic compounds containing hydroxyl groups but are generally weaker than the familiar mineral acids (e.g., hydrochloric acid, HCl, sulfuric acid, H2SO4, etc.).Product Details of 2623-87-2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Reductive Electrochemical Activation of Molecular Oxygen Catalyzed by an Iron-Tungstate Oxide Capsule: Reactivity Studies Consistent with Compound I Type Oxidants》 was written by Bugnola, Marco; Shen, Kaiji; Haviv, Eynat; Neumann, Ronny. Formula: C6H5BrO2 And the article was included in ACS Catalysis on April 3 ,2020. The article conveys some information:

The reductive activation of O2 catalyzed by Fe-based enzymes toward its use as an O donor is paradigmatic for O transfer reactions in nature. Mechanistic studies on these enzymes and related biomimetic coordination compounds designed to form reactive intermediates, almost invariably using various shunt pathways, showed that high-valent Fe(V)=O and the formally isoelectronic Fe(IV)=O porphyrin cation radical intermediates are often thought to be the active species in alkane and arene hydroxylation and alkene epoxidation reactions. Although this four decade long research effort has yielded a massive amount of spectroscopic data, reactivity studies, and a detailed, but still incomplete, mechanistic understanding, the actual reductive activation of O2 coupled with efficient catalytic transformations has rarely been exptl. studied. Recently, a completely inorganic Fe-W oxide capsule with a keplerate structure, noted as {Fe30W72}, is an effective electrocatalyst for the cathodic activation of O2 in H2O leading to the oxidation of light alkanes and alkenes. The present report deals with extensive reactivity studies of these {Fe30W72} electrocatalytic reactions showing (1) arene hydroxylation including kinetic isotope effects and migration of the ipso substituent to the adjacent C atom (NIH shift); (2) a high kinetic isotope effect for alkyl C-H bond activation; (3) dealkylation of alkylamines and alkylsulfides; (4) desaturation reactions; (5) retention of stereochem. in cis-alkene epoxidation; and (6) unusual regioselectivity in the oxidation of cyclic and acyclic ketones, alcs., and carboxylic acids where reactivity is not correlated to the bond disassocn. energy; the regioselectivity obtained is attributable to polar effects and/or entropic contributions. Collectively these results also support the conclusion that the active intermediate species formed in the catalytic cycle is consistent with a compound I type oxidant. The activity of {Fe30W72} in cathodic aerobic oxidation reactions shows it to be an inorganic functional analog of Fe-based monooxygenases. The experimental part of the paper was very detailed, including the reaction process of 2-Bromobenzene-1,4-diol(cas: 583-69-7Formula: C6H5BrO2)

2-Bromobenzene-1,4-diol(cas: 583-69-7) 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. Formula: C6H5BrO2 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

Quality Control of o-BromobenzaldehydeIn 2019 ,《Three-Component Cascade Bis-heteroannulation of Aryl or Vinyl Methylketoxime Acetates toward Thieno[3,2-c]isoquinolines》 was published in Organic Letters. The article was written by Xu, Zhenhua; Deng, Guo-Jun; Zhang, Feng; Chen, Hongbiao; Huang, Huawen. The article contains the following contents:

A three-component cascade bis-heteroannulation reaction is described that provides access to a variety of benzo[4,5]thieno[3,2-c]isoquinoline and thieno[3,2-c]isoquinoline compounds from easily available methylketoximes, o-halobenzaldehydes, and elemental sulfur. Mechanistic studies reveal a two-step process involving a sequential copper and sulfur catalysis relay. The experimental process involved the reaction of o-Bromobenzaldehyde(cas: 6630-33-7Quality Control of o-Bromobenzaldehyde)

o-Bromobenzaldehyde(cas: 6630-33-7) is used in L-threonine aldolase-catalyzed enantio/diastereoselective aldol reactions.Quality Control of o-BromobenzaldehydeIt is also used in L-threonine aldolase-catalyzed enantio and diastereoselective aldol reactions. Further, it reacts with trichloromethane to prepare 1-(2-bromo-phenyl)-2,2,2-trichloro-ethanol.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

HPLC of Formula: 626-40-4In 2022 ,《Structural Development of Silicon-Containing Retinoids: Structure-Activity Relationship Study of the Hydrophobic Pharmacophore of Retinobenzoic Acids Using Silyl Functionalities》 was published in ChemMedChem. The article was written by Oikawa, Tsuyoshi; Fujii, Shinya; Mori, Shuichi; Masuno, Hiroyuki; Kawachi, Emiko; Kagechika, Hiroyuki. The article contains the following contents:

We designed and synthesized a series of retinobenzoic acids bearing various silyl functionalities in order to explore in detail the structure-activity relationship (SAR) at the hydrophobic moiety of retinoids. Among the synthesized compounds, 24 c bearing a t-butyldimethylsilyl (TBS) group at the hydrophobic site exhibited potent retinoid activity comparable to that of the lead compound Am555S (4). Compound 24 c exhibited transcription-promoting activity towards all three subtypes of retinoic acid receptor (RAR), but showed the highest activity towards RARγ, in contrast to the high RARα-selectivity of Am80 (3) and Am555S (4). The SARs presented here should be helpful in the development of subtype-selective retinoids, and in particular 24 c might be a promising lead compound for new RARγ ligands. In the experiment, the researchers used 3,5-Dibromoaniline(cas: 626-40-4HPLC of Formula: 626-40-4)

3,5-Dibromoaniline(cas: 626-40-4) belongs to anime. Amines characteristically form salts with acids; a hydrogen ion, H+, adds to the nitrogen. With the strong mineral acids (e.g., H2SO4, HNO3, and HCl), the reaction is vigorous. Salt formation is instantly reversed by strong bases such as NaOH. Neutral electrophiles (compounds attracted to regions of negative charge) also react with amines; alkyl halides (R′X) and analogous alkylating agents are important examples of electrophilic reagents.HPLC of Formula: 626-40-4

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Electric Literature of C9H11BrO3In 2021 ,《Synthesis and biological evaluation of 1-(diarylmethyl)-1H-1,2,4-triazoles and 1-(diarylmethyl)-1H-imidazoles as a novel class of anti-mitotic agent for activity in breast cancer》 appeared in Pharmaceuticals. The author of the article were Ana, Gloria; Kelly, Patrick M.; Malebari, Azizah M.; Noorani, Sara; Nathwani, Seema M.; Twamley, Brendan; Fayne, Darren; O’Boyle, Niamh M.; Zisterer, Daniela M.; Pimentel, Elisangela Flavia; Endringer, Denise Coutinho; Meegan, Mary J.. The article conveys some information:

Synthesis and biochem. evaluation of diaryl(heterocyclyl)methanes R1CH(X)R2 (I) [X = 1,2,4-triazol-1-yl, 1-imidazolyl, 1-pyrrolidinyl, 1-piperidinyl, N-R3-piperazin-1-yl, 1,2,3-triazol-2-yl; R1, R2 = Ph, 4-HOC6H4, 3-HO-4-MeOC6H3, 3,4,5-(MeO)3C6H2, etc.; R3 = H, Ph, PhCH2, etc.], that were designed as hybrids of the microtubule targeting benzophenone phenstatin and the aromatase inhibitor letrozole, are described. A preliminary screening in estrogen receptor (ER)-pos. MCF-7 breast cancer cells identified the compound I [X = 1,2,3-triazol-2-yl; R1 = 3,4,5-(MeO)3C6H2; R2 = 3-HO-4-MeOC6H3] as a potent antiproliferative compound with an IC50 value of 52 nM in MCF-7 breast cancer cells (ER+/PR+) and 74 nM in triple-neg. MDA-MB-231 breast cancer cells. The compounds I demonstrated significant G2/M phase cell cycle arrest and induction of apoptosis in the MCF-7 cell line, inhibited tubulin polymerization, and were selective for cancer cells when evaluated in non-tumorigenic MCF-10A breast cells. The immunofluorescence staining of MCF-7 cells confirmed that these compounds targeted tubulin and induced multinucleation, which was a recognized sign of mitotic catastrophe. Computational docking studies of compounds I [X = 1,2,4-triazol-1-yl, imidazol-1-yl, 1,2,3-triazol-2-yl; R1 = 3,4,5-(MeO)3C6H2; R2 = 3-OH-4-MeOC6H3] in the colchicine binding site of tubulin indicated potential binding conformations for the compounds The compounds I [X = 1,2,4-triazol-1-yl, imidazol-1-yl; R1 = 3,4,5-(MeO)3C6H2; R2 = 3-OH-4-MeOC6H3] were also shown to selectively inhibit aromatase. These compounds are promising candidates for development as antiproliferative, aromatase inhibitory, and microtubule-disrupting agents for breast cancer. The experimental process involved the reaction of 1-Bromo-3,4,5-trimethoxybenzene(cas: 2675-79-8Electric Literature of C9H11BrO3)

1-Bromo-3,4,5-trimethoxybenzene(cas: 2675-79-8) is an important raw material and intermediate used in organic synthesis, pharmaceuticals, agrochemicals and dyestuff.Electric Literature of C9H11BrO31-Bromo-3,4,5-trimethoxybenzene can be used to synthesize analogs of HA14-1, which shows promising anticancer properties.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Product Details of 3141-27-3In 2020 ,《High refractive index inverse vulcanized polymers for organic photonic crystals》 appeared in Crystals. The author of the article were Tavella, Christian; Lova, Paola; Marsotto, Martina; Luciano, Giorgio; Patrini, Maddalena; Stagnaro, Paola; Comoretto, Davide. The article conveys some information:

Photonic technologies are nowadays dominated by highly performing inorganic structures that are commonly fabricated via lithog. or epitaxial growth. Unfortunately, the fabrication of these systems is costly, time consuming, and does not allow for the growth of large photonic structures. All-polymer photonic crystals could overcome this limitation thanks to easy solubility and melt processing. On the other hand, macromols. often do not offer a dielec. constant large enough to approach the performances of their inorganic counterparts. In this work, the authors demonstrate a new approach to achieve high dielec. constant distributed Bragg reflectors with a photonic band gap that is tunable in a very broad spectral region. A highly transparent medium was developed through a blend of a com. polymer with a high refractive index inverse vulcanized polymer that is rich in sulfur, where the large polarizability of the S-S bond provides refractive index values that are unconceivable with common non-conjugated polymers. This approach paves the way to the recycling of sulfur byproducts for new high added-value nanostructures. In the experiment, the researchers used 2,5-Dibromothiophene(cas: 3141-27-3Product Details of 3141-27-3)

2,5-Dibromothiophene(cas: 3141-27-3) , is mainly used as pharmaceutical intermediate and synthesis intermediate. 2,5-Dibromothiophene polymerizes by debromination with magnesium catalyzed by nickel compounds to form poly(2,5- thienylene) .Product Details of 3141-27-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2022,Yu, Wan-Lei; Ren, Zi-Gang; Ma, Wei; Zheng, Haixue; Wu, Wangsuo; Xu, Peng-Fei published an article in Green Chemistry. The title of the article was 《Intramolecular dehydrogenative amination of alkenes via dual organic photoredox and cobalt catalysis without a hydrogen acceptor》.Application In Synthesis of 4-Bromobutanoic acid The author mentioned the following in the article:

A conceptually novel oxidant-free dehydrogenative amination of alkenes I (Ar = Ph, 4-Me-ph, naphthalen-1-yl, etc.; R1 = H, Me, Ph, Et, etc.; R2 = H, Me, Et; R1R2 = cyclohexyl, 1-[(tert-butoxy)(oxo)methane]piperidin-4-yl, cyclopentyl, etc.; X = CH2, O, N, S) through a synergistic photoredox and cobalt catalysis with H2 evolution has been achieved. With this approach, a wide range of five-membered N-heterocycles II and III (R3 = Ph, 2,4,6-trimethylphenyl, 2-phenylethyl, etc.) was synthesized with excellent atom-economy. The green system will address the challenges that are sensitive to traditionally oxidative conditions. Furthermore, the scope and mechanistic details of the method are discussed. The experimental part of the paper was very detailed, including the reaction process of 4-Bromobutanoic acid(cas: 2623-87-2Application In Synthesis of 4-Bromobutanoic acid)

4-Bromobutanoic acid(cas: 2623-87-2) belongs to carboxylic acids. The chief chemical characteristic of the carboxylic acids is their acidity. They are generally more acidic than other organic compounds containing hydroxyl groups but are generally weaker than the familiar mineral acids (e.g., hydrochloric acid, HCl, sulfuric acid, H2SO4, etc.).Application In Synthesis of 4-Bromobutanoic acid

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary