Category: bromides-buliding-blocks

The author of 《Melanin-dot-mediated delivery of metallacycle for NIR-II/photoacoustic dual-modal imaging-guided chemo-photothermal synergistic therapy》 were Sun, Yue; Ding, Feng; Chen, Zhao; Zhang, Ruiping; Li, Chonglu; Xu, Yuling; Zhang, Yi; Ni, Ruidong; Li, Xiaopeng; Yang, Guangfu; Sun, Yao; Stang, Peter J.. And the article was published in Proceedings of the National Academy of Sciences of the United States of America in 2019. SDS of cas: 3395-91-3 The author mentioned the following in the article:

Discrete Pt(II) metallacycles have potential applications in biomedicine. Herein, we engineered a dual-modal imaging and chemo-photothermal therapeutic nano-agent 1 that incorporates discrete Pt(II) metallacycle 2 and fluorescent dye 3 (emission wavelength in the second near-IR channel [NIR-II]) into multifunctional melanin dots with photoacoustic signal and photothermal features. Nano-agent 1 has a good solubility, biocompatibility, and stability in vivo. Both photoacoustic imaging and NIR-II imaging in vivo confirmed that 1 can effectively accumulate at tumor sites with good signal-to-background ratio and favorable distribution. Guided by precise dual-modal imaging, nano-agent 1 exhibits a superior antitumor performance and less severe side effects compared with a single treatment because of the high efficiency of the chemo-photothermal synergistic therapy. This study shows that nano-agent 1 provides a promising multifunctional theranostic platform for potential applications in biomedicine. In the experimental materials used by the author, we found Methyl 3-bromopropanoate(cas: 3395-91-3SDS of cas: 3395-91-3)

Methyl 3-bromopropanoate(cas: 3395-91-3) belongs to bromides. One prominent application of synthetic organobromine compounds is the use of polybrominated diphenyl ethers as fire-retardants, and in fact fire-retardant manufacture is currently the major industrial use of the element bromine.SDS of cas: 3395-91-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Organic light emitting devices based upon divalent osmium complexes: Part 1: design, synthesis, and characterization of osmium complexes》 was published in Proceedings of SPIE-The International Society for Optical Engineering in 2003. These research results belong to Carlson, Brenden; Phelan, Gregory D.; Jiang, Xuezhong; Kaminsky, Werner; Jen, Alex K. Y.; Dalton, Larry R.. Name: 4,7-Bis(4-bromophenyl)-1,10-phenanthroline The article mentions the following:

The authors present the synthesis and characterization of several novel osmium complexes [Os(N-N)2L-L]2+2X- designed for organic light emitting device (OLED) applications. In the complex notation N-N represents a derivative of 2,2′-bipyridine or 1,10-phenanthroline and L-L represents a strong π-acid arsine or phosphine ligand, 1,2-bis(diphenylarsino)ethane, 1,2-bis(diphenylarsino)ethene and 1,2-bis(diphenylphosphino)ethene. The complexes feature 3MLCT emission that ranges from 611-650 nm, which makes them suitable as an emission source for red OLEDs. Phosphorescent quantum yields ≤45% and emission lifetimes as short as 400 ns were reached. In the part of experimental materials, we found many familiar compounds, such as 4,7-Bis(4-bromophenyl)-1,10-phenanthroline(cas: 97802-08-9Name: 4,7-Bis(4-bromophenyl)-1,10-phenanthroline)

4,7-Bis(4-bromophenyl)-1,10-phenanthroline(cas: 97802-08-9) 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. Name: 4,7-Bis(4-bromophenyl)-1,10-phenanthroline Due to the reactivity of bromide, they are used as potential precursors or important intermediates in organic synthesis.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Insights into constitutional isomeric effects on donor-acceptor intermolecular arrangements in non-fullerene organic solar cells》 was published in Journal of Materials Chemistry A: Materials for Energy and Sustainability in 2019. These research results belong to Lee, Jungho; Go, Eun Min; Dharmapurikar, Satej; Xu, Jianqiu; Lee, Sang Myeon; Jeong, Mingyu; Lee, Kyu Cheol; Oh, Jiyeon; Cho, Yongjoon; Zhang, Chunfeng; Xiao, Min; Kwak, Sang Kyu; Yang, Changduk. Formula: C7H5Br2F The article mentions the following:

Donor-acceptor intermol. interactions and/or arrangements are key factors determining the performance of organic solar cells (OSCs). Herein, two ITIC-based isomeric acceptors (o-F-ITIC and m-F-ITIC) with fluorine atoms at ortho and meta positions within the side chains were developed. The developed acceptors showed different interactions and/or arrangements with the donor counterpart (PBDB-T), which caused a significant variation in the power conversion efficiency (PCE) of OSCs. The PCE of the PBDB-T:o-F-ITIC device was 11.11% vs. 8.90% of the PBDB-T:m-F-ITIC device. A detailed theor. anal. of the intermol. complexes formed between F-ITICs and PBDB-T allows a determination of how the two isomeric acceptors interact differently with PBDB-T. Relative to PBDB-T:m-F-ITIC with a preferential DCI-BDD complex, PBDB-T:o-F-ITIC showed a closer donor-acceptor interaction, with a tightly packed parallel-like DCI-BDT complex, resulting in larger interfacial areas. These behavioral characteristics explain in detail the exptl. results obtained from the comparison of the two blend systems relating to elec. and morphol. properties. Moreover, transient absorption spectroscopy of PBDB-T:o-F-ITIC revealed superior hole/electron transfer and separation processes, providing further evidence of the presence of beneficial intermol. complexes. This study facilitates the understanding of the role of constitutional isomerism both in intermol. interactions and in promoting the development of high-performance OSCs. The experimental process involved the reaction of 4-Bromo-1-(bromomethyl)-2-fluorobenzene(cas: 76283-09-5Formula: C7H5Br2F)

4-Bromo-1-(bromomethyl)-2-fluorobenzene(cas: 76283-09-5) belongs to organobromine compounds.The reactivity of organobromine compounds resembles but is intermediate between the reactivity of organochlorine and organoiodine compounds. Formula: C7H5Br2F 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

Konovalova, Irina S.; Shishkina, Svitlana V.; Kobzev, Dmytro; Semenova, Olha; Tatarets, Anatoliy published their research in Acta Crystallographica, Section E: Crystallographic Communications in 2021. The article was titled 《Crystal structures and Hirshfeld analysis of 4,6-dibromoindolenine and its quaternized salt》.SDS of cas: 626-40-4 The article contains the following contents:

4,6-Dibromo-2,3,3-trimethyl-3H-indole, C11H11Br2N, exists as a neutral mol. in the asym. unit. The asym. unit of 4,6-dibromo-2,3,3-trimethyl-3H-indol-1-ium iodide, C12H14Br2N+·I-, contains one organic cation and one iodine anion. The pos. charge is localized on the quaternized nitrogen atom. In the crystal, mols. of 4,6-dibromoindolenine are linked by C-Br···π halogen bonds, forming zigzag chains propagating in the [001] direction. The mols. of the salt form layers parallel to the (010) plane where they are linked by C-H···Br hydrogen bonds, C-Br···Br and C-Br···I halogen bonds. The Hirshfeld surface anal. and two dimensional fingerprint plots were used to analyze the intermol. contacts present in both crystals. The results came from multiple reactions, including the reaction of 3,5-Dibromoaniline(cas: 626-40-4SDS of cas: 626-40-4)

3,5-Dibromoaniline(cas: 626-40-4) belongs to anime. Amines have a free lone pair with which they can coordinate to metal centers. Amine–metal bonds are weaker because amines are incapable of backbonding, but they are still important for sensing applications.While stronger than hydrogen bonds, amine–metal bonds are still weaker than both covalent and ionic bonds.SDS of cas: 626-40-4

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Dual mode selective detection and differentiation of TNT from other nitroaromatic compounds》 was written by Goudappagouda; Dongre, Sangram D.; Das, Tamal; Santhosh Babu, Sukumaran. Reference of 9,10-Dibromoanthracene And the article was included in Journal of Materials Chemistry A: Materials for Energy and Sustainability in 2020. The article conveys some information:

Selective detection of explosives, especially TNT, is a highly desirable area of research and various explosives detection devices including fluorescent sensors are already in place. However, multi-mode sensors will be more useful and reliable than conventional fluorescent “”Turn Off”” sensors. One of the challenges is the development of selective sensors to prevent illegal transport of commonly used explosive TNT through on-the-spot anal. In this context, a fluorescent polymer-based selective detection is reported of TNT using both fluorometric and colorimetric signals. In addition, colorimetric differentiation of TNT from other nitroarom. compounds is made possible by complexing with various amines. Even though many other sensors are available for TNT, the current demonstration is unique in terms of selectivity, sensitivity, reliability, portability, and rapidity of results. The as-developed explosive detection kit can be useful in both civilian and military operations to trace the illegal transport of TNT as well as for post-explosion anal. In the part of experimental materials, we found many familiar compounds, such as 9,10-Dibromoanthracene(cas: 523-27-3Reference 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%.Reference of 9,10-Dibromoanthracene

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Highly conductive fluorine-based anion exchange membranes with robust alkaline durability》 was published in Journal of Materials Chemistry A: Materials for Energy and Sustainability in 2020. These research results belong to Gao, Xue Lang; Sun, Li Xuan; Wu, Hong Yue; Zhu, Zhao Yu; Xiao, Nan; Chen, Jia Hui; Yang, Qian; Zhang, Qiu Gen; Zhu, Ai Mei; Liu, Qing Lin. Related Products of 629-03-8 The article mentions the following:

Anion exchange membranes (AEMs) with robust alk. stability and high ionic conductivity are imminently required for the promising electrochem. energy conversion devices – fuel cells. Herein, a series of novel crosslinked AEMs with hydrophobic fluorine-based polymer backbones bearing special functional sites and hydrophilic long flexible multi-cation side chains are prepared Morphol. observation and ion transport anal. confirm the existence of distinct microphase separation and efficient ion-conducting channels within the membranes resulting from the inherent chem. structure. A highest ionic conductivity of 136.27 mS cm-1 can be achieved by TQ-PDBA-70% (IEC = 2.16 meq. g-1) at 80°C. Meanwhile, the prepared TQ-PDBA-X AEMs exhibit a desirable swelling ratio (<10%) and excellent mech. properties (tensile stress > 22.8 MPa). It is worth noting that the retained ionic conductivity of the TQ-PDBA-70% AEM is 98.14%, 95.50%, 77.90%, 72.02% and 58.15% after being immersed in 1, 2, 4, 8 and 10 M KOH at 80°C for 1000 h, resp. Chem. structure change of the TQ-PDBA-70% AEM before and after the alk. stability test is negligible, as revealed by FT-IR. Moreover, TQ-PDBA-70% has high ionic exchange capacity (IEC) retention and maintains good mech. properties. A single cell assembled with TQ-PDBA-70% has a maximum power d. of 158.8 mW cm-2 under a c.d. of 360 mA cm-2. These results suggest that this type of structure opens a new strategy for developing high performance AEMs. The experimental part of the paper was very detailed, including the reaction process of 1,6-Dibromohexane(cas: 629-03-8Related Products of 629-03-8)

1,6-Dibromohexane(cas: 629-03-8) is generally used to introduce C6 spacer in the molecular architecture. Some of the examples are: synthesis of solvent processable and conductive polyfluorene ionomers for alkaline fuel cell applications; synthesis of cross-linkable regioregular poly(3-(5-hexenyl)thiophene) (P3HNT) for stabilizing the film morphology in polymer photovoltaic cells.Related Products of 629-03-8

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Highly Regioselective Preparation and Characterization of New 6-O-Substituted Dieckol Derivatives》 was published in Journal of Industrial and Engineering Chemistry (Amsterdam, Netherlands) in 2020. These research results belong to Kim, Yongkyun; Shin, Jooseok; Kang, Su Min; Song, Jinyoung; Shin, Hyeon-Cheol; Keum, Young-Sam; Hwang, Hye Jeong; Park, Kwangyong. Recommanded Product: Ethyl 4-bromobutyrate The article mentions the following:

Dieckol is a brown algae-derived polyphenol that has broad bioactivity and low toxicity. Therefore, it is a promising lead compound for the development of therapeutic agents to treat various pathol. conditions, including viral infections, allergies, diabetes, skin ageing, cancers, and neurodegenerative conditions. To exploit the pharmacol. potential of dieckol, its stability, solubility, pharmacokinetics, and drug delivery must be improved. This can be achieved by the controlled modification of the hydroxyl groups, but the presence of eleven nearly equivalent hydroxyl groups makes the task highly challenging. In this study, the regioselectivities in five substitution reactions of the hydroxyl groups of dieckol under various SN2 reaction conditions were investigated. After reaction optimization, five substituents (Me, benzyl, methoxymethyl, 3-hydroxypropyl, and 3-(ethoxycarbonyl)propyl) could be introduced at the 6-Oposition of dieckol with surprisingly high regioselectivity, as confirmed by 2D-NMR spectroscopic analyses. The prepared dieckol derivatives showed antioxidant and anticancer activities analogous to those of unmodified dieckol, indicating that the mono-O-substitutions did not affect the biochem. and biol. characteristics of dieckol. Therefore, the proposed methodol. for the mono-O-substitution of a specific oxygen of dieckol is a powerful tool to add various pharmaceutical attributes to dieckol, thus contributing to the development of various dieckol-based drug candidates. In addition to this study using Ethyl 4-bromobutyrate, there are many other studies that have used Ethyl 4-bromobutyrate(cas: 2969-81-5Recommanded Product: Ethyl 4-bromobutyrate) was used in this study.

Ethyl 4-bromobutyrate(cas: 2969-81-5) belongs to bromides. Most organobromine compounds, like most organohalide compounds, are relatively nonpolar. Bromine is more electronegative than carbon (2.9 vs 2.5). Consequently, the carbon in a carbon–bromine bond is electrophilic, i.e. alkyl bromides are alkylating agents.Recommanded Product: Ethyl 4-bromobutyrate

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Reference of 4,7-Bis(4-bromophenyl)-1,10-phenanthrolineOn May 31, 1985, Alford, Peter C.; Cook, Michael J.; Lewis, Anthony P.; McAuliffe, Glenn S. G.; Skarda, Vladimir; Thomson, Andrew J.; Glasper, John L.; Robbins, David J. published an article in Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry (1972-1999). The article was 《Luminescent metal complexes. Part 5. Luminescence properties of ring-substituted 1,10-phenanthroline tris-complexes of ruthenium(II)》. The article mentions the following:

The absorption characteristics, emission spectra, luminescent quantum yields, and lifetimes are reported for 24 Ru(II) tris-1,10-phenanthroline complexes in EtOH-MeOH solution Quantum yields were 0.019-0.403, the highest values being recorded for complexes substituted at the 4,7-sites with aryl groups. Incorporation of these derivatives into PVC film raised the quantum yields to 0.40-0.75. In the part of experimental materials, we found many familiar compounds, such as 4,7-Bis(4-bromophenyl)-1,10-phenanthroline(cas: 97802-08-9Reference of 4,7-Bis(4-bromophenyl)-1,10-phenanthroline)

4,7-Bis(4-bromophenyl)-1,10-phenanthroline(cas: 97802-08-9) 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. Reference of 4,7-Bis(4-bromophenyl)-1,10-phenanthroline Alkyl bromides are mainly used as alkylating agents and also find application as a solvent to extract oil from seeds and wool.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Nino, Patricia; Cabaa, Marta; Aguilar, Nuria; Terricabras, Emma; Albericio, Fernando; Fernandez, Joan-Carles published an article in Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry. The title of the article was 《Efficient three-component synthesis of diversely substituted tetrahydro-1H-cyclopenta[c]quinolines》.Name: 4-Bromo-2-ethylbenzaldehyde The author mentioned the following in the article:

The synthesis of highly functionalized substituted tetrahydro-1H-cyclopenta[c]quinoline and its reduced derivatives hexahydro-1H-cyclopenta[c]quinolines via Povarov reaction in high diastereoselectivity and high to moderate yields is described. In addition, the relative stereochem. of the α-substituent to the tetrahydroquinoline nitrogen, as well as the regioselectivity of reaction, is shown to depend upon subtle substituent effects on the aldehyde and aniline precursors. In most cases, a preference for the formation of endo diastereomeric adducts is observed but for reactions with ortho-substituted aldehydes, the formation of exo adducts is also observed The exo-diastereoselectivity is found to be higher when the bulky size of this ortho group increases. Preparation of ortho and diortho-substituted aromatic aldehyde precursors of the Povarov reaction is also reported. In the experiment, the researchers used many compounds, for example, 4-Bromo-2-ethylbenzaldehyde(cas: 1114808-89-7Name: 4-Bromo-2-ethylbenzaldehyde)

4-Bromo-2-ethylbenzaldehyde(cas: 1114808-89-7) 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. Name: 4-Bromo-2-ethylbenzaldehyde Alkyl bromides are mainly used as alkylating agents and also find application as a solvent to extract oil from seeds and wool.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Extrinsic vs. intrinsic luminescence and their interplay with spin crossover in 3D Hofmann-type coordination polymers》 was written by Meneses-Sanchez, Manuel; Pineiro-Lopez, Lucia; Delgado, Teresa; Bartual-Murgui, Carlos; Munoz, M. Carmen; Chakraborty, Pradip; Real, Jose Antonio. Reference of 9,10-Dibromoanthracene And the article was included in Journal of Materials Chemistry C: Materials for Optical and Electronic Devices in 2020. The article conveys some information:

The research of new multifunctional materials, as those undergoing spin crossover (SCO) and luminescent properties, is extremely important in the development of further optical and electronic switching devices. As a new step towards this ambitious aim, the coupling of SCO and fluorescence is presented here following two main strategies: whether the fluorescent agent is integrated as a part of the main structure of a 3D SCO coordination polymer {FeII(bpan)[MI(CN)2]2} (bpan = bis(4-pyridyl)anthracene, MI = Ag (FebpanAg), Au (FebpanAu)) or is a guest mol. inserted within the cavities of the 3D switchable framework {FeII(bpb)[MI(CN)2]2}·pyrene (bpb = bis(4-pyridyl)butadiyne, MI = Ag (FebpbAg·Pyr), Au (FebpbAu·Pyr)). The magnetic, calorimetric, structural, UV-visible absorption and fluorescent characterizations were performed confirming the occurrence of a SCO-fluorescence interplay in the studied compounds Moreover, the relevance of the intrinsic or extrinsic nature of the luminescence on the efficiency of the interplay is discussed on the basis of the available information. The results came from multiple reactions, including the reaction of 9,10-Dibromoanthracene(cas: 523-27-3Reference 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%.Reference of 9,10-Dibromoanthracene

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary