Category: bromides-buliding-blocks

Reference of 2,5-DibromothiopheneIn 2020 ,《Solution-Processed, Insoluble Thin Films through In Situ Chemical Polymerization of Semiconducting Native Polythiophene》 appeared in Physica Status Solidi A: Applications and Materials Science. The author of the article were Lebert, Jenny; Kratzer, Eva M.; Herzig, Eva M.. The article conveys some information:

The use of multilayer, solution-processed organic thin film devices can benefit strongly from the controlled deposition of insoluble thin films. Here, a solution-based in situ polymerization technique for semiconducting polythiophene thin films based on nonchlorinated solvents forming a range of large-scale structured or homogeneous, insoluble thin films is systematically developed. The high-quality nature of the resulting polythiophene thin films is demonstrated by successfully implementing the films in the active layer of bilayer heterojunction solar cells. It is possible to transfer this protocol to large-scale processing without addnl. changes to the material system. The experimental process involved the reaction of 2,5-Dibromothiophene(cas: 3141-27-3Reference of 2,5-Dibromothiophene)

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) .Reference of 2,5-Dibromothiophene

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

In 2022,Lamola, Jairus L.; Moshapo, Paseka T.; Holzapfel, Cedric W.; Maumela, Munaka Christopher published an article in Phosphorus, Sulfur and Silicon and the Related Elements. The title of the article was 《Designing biaryl phosphacyclic ligands: their characterization and evaluation in palladium-catalyzed Suzuki-Miyaura reactions of aryl bromides and chlorides》.Safety of 5-Bromobenzo[d][1,3]dioxole The author mentioned the following in the article:

Efficient palladium catalyst systems based on the combination of bench stable biaryl phosphacycles and Pd(OAc)2 are described for Suzuki-Miyaura cross-coupling reactions of aryl bromides and chlorides. Notably, the electronically and sterically diametric biaryl phosphacycles allowed facile coupling of sterically hindered and heterocyclic substrates.5-Bromobenzo[d][1,3]dioxole(cas: 2635-13-4Safety of 5-Bromobenzo[d][1,3]dioxole) was used in this study.

Furthermore, the coupling of 5-Bromobenzo[d][1,3]dioxole(cas: 2635-13-4) with β-methallyl alcohol was catalyzed by Pd(OAc)2 in combination with P(t-Bu)3.Safety of 5-Bromobenzo[d][1,3]dioxole

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Nozawa-Kumada, Kanako; Matsuzawa, Yuta; Ono, Kanako; Shigeno, Masanori; Kondo, Yoshinori published an article in 2021. The article was titled 《Copper-catalyzed aerobic double functionalization of benzylic C(sp3)-H bonds for the synthesis of 3-hydroxyisoindolinones》, and you may find the article in Chemical Communications (Cambridge, United Kingdom).Synthetic Route of C7H5BrO The information in the text is summarized as follows:

An aerobic copper-catalyzed synthesis of 3-hydroxyisoindolinones I (R1 = Ph, 3-thienyl, OMe, etc., R2 = Me, Ph, cyclopropyl, etc., R3 = Me, F, Cl, H, R4 = H, MeO, CF3, R3R4 = OCH2O) was developed via the benzylic double C(sp3)-H functionalization of 2-alkylbenzamides II. In this reaction, mol. oxygen was used as both an oxidant for C(sp3)-H functionalization and an oxygen source. The method can be extended to diverse benzylic C(sp3)-H bonds and shows excellent functional group tolerance. The results came from multiple reactions, including the reaction of o-Bromobenzaldehyde(cas: 6630-33-7Synthetic Route of C7H5BrO)

o-Bromobenzaldehyde(cas: 6630-33-7) is used in L-threonine aldolase-catalyzed enantio/diastereoselective aldol reactions.Synthetic Route of C7H5BrOSynthetic applications of o-Bromobenzaldehyde include: synthesis of aza-fused polycyclic quinolines through copper-catalyzed cascade reaction, preparation of 1-substituted indazoles by CuI-catalyzed coupling with N-aryl hydrazides.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Stenger-Smith, Jenny; Chakraborty, Indranil; Ouattara, Ramatoulaye; Sameera, W. M. C.; Rue, Kelly; Mascharak, Pradip published their research in Chemical Communications (Cambridge, United Kingdom) in 2021. The article was titled 《CO release from Mn(I)-based photoCORMs with single photons in the phototherapeutic region》.Safety of Bromopentacarbonylmanganese(I) The article contains the following contents:

Both the instrumentation required for two photon excitation (TPE) and tissue damage possibility by high intensity laser lights could impede TPE-induced CO delivery in hospital settings. Herein we report two Mn(I)-based photoCORMs with a fac-{Mn(CO)3} moiety that exhibit facile CO release upon simple exposure to light within the phototherapeutic region (no TPE required). The experimental process involved the reaction of Bromopentacarbonylmanganese(I)(cas: 14516-54-2Safety of Bromopentacarbonylmanganese(I))

Bromopentacarbonylmanganese(I)(cas: 14516-54-2) has many other uses. It is used in the formation of (eta6-arene)tricarbonylmanganese(I) by reacting with arene (arene= hexamethyl benzene, 1,2,4,5-tetramethyl benzene, mesitylene, p-xylene and toluene) in the presence silver salt.Safety of Bromopentacarbonylmanganese(I)

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

The author of 《Synthesis of vinca alkaloid-triphenylphosphine derivatives having potential antitumor effect》 were Keglevich, Andras; Szigetvari, Aron; Dekany, Miklos; Szantay, Csaba Jr.; Keglevich, Peter; Hazai, Laszlo. And the article was published in Phosphorus, Sulfur and Silicon and the Related Elements in 2019. Safety of 4-Bromobutanoic acid The author mentioned the following in the article:

The successful therapy of cancer is still unresolved. For that reason enormous efforts are being made to increase the effectiveness of anticancer drugs and reduce their side effects at least. An important approach to the development of selective mols. is the synthesis of drug conjugates, also called as “”hybrids””. Taking this into consideration two Vinca alkaloid derivatives conjugated with triphenylphosphine have been synthesized. The incorporation of the mentioned two pharmacophores in the same mol. could amplify the evolving cumulative antineoplastic impact and/or counterbalance the side effects. Thus a development of hybrid anticancer mols. has been started by synthesis of Vinca alkaloid-triphenylphosphine conjugates, which could have higher efficacies and safety profiles than the present drugs available in market. The experimental part of the paper was very detailed, including the reaction process of 4-Bromobutanoic acid(cas: 2623-87-2Safety 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.).Safety of 4-Bromobutanoic acid

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

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)

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

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

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)

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

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

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.

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.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

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)

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

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Doufene, Koceila; Malki, Yohan; Vincent, Laure-Anais; Cuq, Pierre; Devoisselle, Jean-Marie; Masurier, Nicolas; Aubert-Pouessel, Anne published their research in Journal of Pharmaceutical Sciences (Philadelphia, PA, United States) in 2021. The article was titled 《Vegetable Oil-based Hybrid Submicron Particles Loaded with JMV5038: A Promising Formulation against Melanoma》.Related Products of 586-76-5 The article contains the following contents:

The aim of this work was to carry out a preformulation study on JMV5038 as a new potent cytotoxic agent, and to develop its formulation within vegetable oil-based hybrid submicron particles (HNP) in order to obtain a versatile dosage form against melanoma. JMV5038 was first characterized through physico-chem. tests and it exhibited high m.p. and logP value, an important pH-sensitivity that led to the formation of well-identified degradation products at low pH, as well as a substantial solubility value in silylated castor oil (ICO). Then, JMV5038-loaded HNP were formulated through a thermostabilized emulsion process based on the sol-gel crosslinking of ICO. They showed high loading efficiency and their in vitro release kinetic assessed in a biorelevant PBS/octanol biphasic system showed a constant sustained release over one month. The cytotoxic activity and cytocompatibility of HNP were evaluated on A375 melanoma cells and NIH 3T3 cells, resp. JMV5038-loaded HNP exhibited a slightly enhanced cytotoxic activity of JMV5038 on melanoma cells while demonstrating their safety on NIH 3T3 cells. In conclusion, JMV5038-loaded HNP proved to be an efficient and safe drug s.c. delivery system that will be interesting to evaluate through preclin. studies. In the experiment, the researchers used 4-Bromobenzoic acid(cas: 586-76-5Related Products of 586-76-5)

4-Bromobenzoic acid(cas: 586-76-5) has been used to study the metabolic fate of 2-,3-and 4-bromo benzoic acids in rat hepatocytes incubation using high temperature liquid chromatography.Related Products of 586-76-5 It was used in bromine-specific detection of the metabolites of 2-,3-and 4-bromobenzoic acid in the urine and bile of rats by inductively coupled plasma mass spectrometry.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary