Category: bromides-buliding-blocks

Product Details of 626-40-4In 2016 ,《Substituted quinolines as noncovalent proteasome inhibitors》 appeared in Bioorganic & Medicinal Chemistry. The author of the article were McDaniel, Tanner J.; Lansdell, Theresa A.; Dissanayake, Amila A.; Azevedo, Lauren M.; Claes, Jacob; Odom, Aaron L.; Tepe, Jetze J.. The article conveys some information:

Screening of a library of diverse heterocyclic scaffolds identified substituted quinolines as inhibitors of the human proteasome. The heterocyclic library was prepared via a novel titanium-catalyzed multicomponent coupling reaction, which rendered a diverse set of isoxazoles, pyrimidines, pyrroles, pyrazoles and quinolines. SAR of the parent lead compound indicated that hydrophobic residues on the benzo-moiety significantly improved potency. Lead compound 3-cyclohexenyl-2-methyl-6-piperidinylquinoline (25) inhibits the chymotryptic-like proteolytic activity of the proteasome (IC50 5.4 μM), representing a new class of nonpeptidic, noncovalent proteasome inhibitors. After reading the article, we found that the author used 3,5-Dibromoaniline(cas: 626-40-4Product Details of 626-40-4)

3,5-Dibromoaniline(cas: 626-40-4) belongs to anime. Reduction of nitro compounds, RNO2, by hydrogen or other reducing agents produces primary amines cleanly (i.e., without a mixture of products), but the method is mostly used for aromatic amines because of the limited availability of aliphatic nitro compounds. Reduction of nitriles and oximes (R2C=NOH) also yields primary amines.Product Details of 626-40-4

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Recommanded Product: 523-27-3In 2020 ,《Quantitative Supramolecular Heterodimerization for Efficient Energy Transfer》 appeared in Angewandte Chemie, International Edition. The author of the article were Wu, Guanglu; Huang, Zehuan; Scherman, Oren A.. The article conveys some information:

The challenge of quant. forming self-assembled heterodimers without other equilibrium byproducts is overcome through self-sorting favored by the introduction of designed shape-complementary moieties. Such a supramol. strategy based on cucurbit[8]uril-directed dimerization is further applied to generate hetero-chromophore dimers quant., leading to efficient energy transfer (>85%) upon photoexcitation. The experimental process involved the reaction of 9,10-Dibromoanthracene(cas: 523-27-3Recommanded Product: 523-27-3)

9,10-Dibromoanthracene(cas: 523-27-3) is a dibrominated polycyclic aromatic hydrocarbon (PAH). 9,10-Dibromoanthracene is often used as an energy acceptor and activator in reactions that produce chemiluminescence.Recommanded Product: 523-27-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Reference of Ethyl 5-bromovalerateIn 2020 ,《Discovery of potent epidermal growth factor receptor (EGFR) degraders by proteolysis targeting chimera (PROTAC)》 appeared in European Journal of Medicinal Chemistry. The author of the article were Zhang, Hao; Zhao, Hong-Yi; Xi, Xiao-Xiao; Liu, Yan-Jie; Xin, Minhang; Mao, Shuai; Zhang, Jun-Jie; Lu, A-Xin; Zhang, San-Qi. The article conveys some information:

Herein, the discovery of small mol. EGFR degraders based on the proteolysis targeting chimera (PROTAC) strategy was reported. In the present study, 13 EGFR degraders containing pyrido[3,4-d]pyrimidine moiety I [X = CH2C(O)NHCH2CH2C(O), CH2CH2CH2CH2C(O), CH2CH2CH2CH2CH2C(O), etc.], II [C = CH2C(O)NHCH2CH2C(O), CH2CH2CH2CH2CH2CH2CH2C(O)] and III [X = CH2CH2CH2CH2C(O), CH2CH2OCH2CH2OCH2CH2, CH2CH2CH2CH2CH2CH2C(O), etc.] were designed and synthesized. Promising PROTACs I [X = CH2CH2CH2CH2CH2CH2CH2C(O)] and III [X = CH2CH2CH2CH2CH2CH2C(O)] induced degradation of EGFR in HCC827 cells with the DC50 values of 45.2 and 34.8 nM, resp. Cellular protein-controlling machinery ubiquitin proteasome system (UPS) was involved in the degradation process. Furthermore, the degraders I [X = CH2CH2CH2CH2CH2CH2CH2C(O)] and III [X = CH2CH2CH2CH2CH2CH2C(O)] could significantly induce the apoptosis of HCC827 cells and arrest the cells in G1 phase. These findings demonstrated that compounds I [X = CH2CH2CH2CH2CH2CH2CH2C(O)] and III [X = CH2CH2CH2CH2CH2CH2C(O)] could serve as effective EGFRdel19-targeting degraders in HCC827 cells. v. In the part of experimental materials, we found many familiar compounds, such as Ethyl 5-bromovalerate(cas: 14660-52-7Reference of Ethyl 5-bromovalerate)

Ethyl 5-bromovalerate(cas: 14660-52-7) 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.Reference of Ethyl 5-bromovalerate

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Related Products of 539-74-2In 2021 ,《Synthesis of novel pyrazolo[3,4-b]quinolinebisphosphonic acids and an unexpected intramolecular cyclization and phosphonylation reaction》 appeared in Organic & Biomolecular Chemistry. The author of the article were Teixeira, Fatima C.; Lucas, Carla; Curto, M. Joao M.; Andre, Vania; Duarte, M. Teresa; Teixeira, Antonio P. S.. The article conveys some information:

Novel pyrazolo[3,4-b]quinoline α-ketophosphonic and hydroxymethylenebisphosphonic acid compounds were synthesized using different methodologies, starting from 2-chloro-3-formylquinoline 1. New phosphonic acid compounds were obtained as N-1 derivatives with a side chain with 1 or 3 (n = 1 or 3) methylene groups. All phosphonic acid compounds and their corresponding ester and carboxylic acid precursors were fully characterized, and their structures elucidated by spectroscopic data, using NMR techniques and IR and high-resolution mass spectroscopy. During the process to obtain the N-1 substituted derivative with two methylene groups (n = 2) in the side chain, an unexpected addition-cyclization cascade reaction was observed, involving the phosphonylation of an aromatic ring and the formation of a new six-member lactam ring to afford a tetracyclic ring system. This was an unexpected result since other pyrazolo[3,4-b]quinoline derivatives and all corresponding pyrazolo[3,4-b]pyridine derivatives already prepared, under similar exptl. conditions, did not undergo this reaction. This domino reaction occurs with different phosphite reagents but only affords the six-member ring. The spectroscopic data allowed the identification of the new synthesized tetracyclic compounds and the x-ray diffraction data of compound 11 enabled the confirmation of the proposed structures. The results came from multiple reactions, including the reaction of Ethyl 3-bromopropanoate(cas: 539-74-2Related Products of 539-74-2)

Ethyl 3-bromopropanoate(cas: 539-74-2) belongs to organobromine compounds.Most of the natural organobromine compounds are produced by marine organisms , and several brominated metabolites with antibacterial , antitumor , antiviral , and antifungal activity have been isolated from seaweed, sponges, corals, molluscs, and others. In contrast, terrestrial plants account only for a few bromine-containing compounds.Related Products of 539-74-2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Application of 1129-28-8In 2016 ,《Discovery of Novel Indoline Cholesterol Ester Transfer Protein Inhibitors (CETP) through a Structure-Guided Approach》 appeared in ACS Medicinal Chemistry Letters. The author of the article were Wilson, Jonathan E.; Kurukulasuriya, Ravi; Reibarkh, Mikhail; Reiter, Maud; Zwicker, Aaron; Zhao, Kake; Zhang, Fengqi; Anand, Rajan; Colandrea, Vincent J.; Cumiskey, Anne-Marie; Crespo, Alejandro; Duffy, Ruth A.; Murphy, Beth Ann; Mitra, Kaushik; Johns, Douglas G.; Duffy, Joseph L.; Vachal, Petr. The article conveys some information:

Using the collective body of known (CETP) inhibitors as inspiration for design, a structurally novel series of tetrahydroquinoxaline CETP inhibitors were discovered. An exemplar from this series, compound I, displayed potent in vitro CETP inhibition and was efficacious in a transgenic cynomologus-CETP mouse HDL PD (pharmacodynamic) assay. However, an undesirable metabolic profile and chem. instability hampered further development of the series. A three-dimensional structure of tetrahydroquinoxaline inhibitor was proposed from 1H NMR structural studies, and this model was then used in silico for the design of a new class of compounds based upon an indoline scaffold. This work resulted in the discovery of compound II, which displayed potent in vitro CETP inhibition, a favorable PK-PD profile relative to tetrahydroquinoxaline I, and dose-dependent efficacy in the transgenic cynomologus-CETP mouse HDL PD assay. After reading the article, we found that the author used Methyl 3-(bromomethyl)benzoate(cas: 1129-28-8Application of 1129-28-8)

Methyl 3-(bromomethyl)benzoate(cas: 1129-28-8) belongs to organobromine compounds.Most of the natural organobromine compounds are produced by marine organisms , and several brominated metabolites with antibacterial , antitumor , antiviral , and antifungal activity have been isolated from seaweed, sponges, corals, molluscs, and others. Moreover, several studies demonstrate that the average proportion of bromine in drugs is significantly higher than that in natural products. Application of 1129-28-8

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Application In Synthesis of Tris(4-bromophenyl)amineIn 2020 ,《Porphyrin-Based Porous Organic Polymer as Peroxidase Mimics for Sulfide-Ion Colorimetric Sensing》 appeared in ACS Sustainable Chemistry & Engineering. The author of the article were Li, Yanhong; Fang, Yishan; Gao, Wenqiang; Guo, Xiaojun; Zhang, Xiaomei. The article conveys some information:

The effective synthesis of functional nanoplatforms for simple, selective, and sensitive hydrogen sulfide detection has received significant attention because of the toxicity of hydrogen sulfide. Here, a new porphyrin-based porous organic polymer, FePPOPEPA, was fabricated through a Pd-/CuI-catalyzed Sonogashira cross-coupling reaction between tris(4-ethynylphenyl)amine and iron(III) 5,10,15,20-tetrakis-(4′-bromophenyl)porphyrinato (FeTBrPP). Results showed that FePPOPEPA has a porous framework, high BET surface areas, wide pore size distribution, abundant surface catalytic active sites, and excellent stability as well as reusability. In the presence of H2O2, FePPOPEPA showed high peroxidase-like activity toward 3,3′,5,5′-tetramethylbenzidine. Based on these findings, FePPOPEPA was used for the first time as an efficient colorimetric probe for sensitive and selective detection of sulfide ions with a low detection limit (0.013μM) within 3 min. The feasibility of this method for real water samples was validated via a standard addition experiment Moreover, the catalytic inhibition mechanism of S2- to FePPOPEPA was disclosed by XPS spectra. The graphic porphyrin-based porous organic polymer as peroxidase mimics for sulfide-ion colorimetric sensing. In the experiment, the researchers used many compounds, for example, Tris(4-bromophenyl)amine(cas: 4316-58-9Application In Synthesis of Tris(4-bromophenyl)amine)

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

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Scale-Up of Room-Temperature Constructive Quantum Interference from Single Molecules to Self-Assembled Molecular-Electronic Films》 was published in Journal of the American Chemical Society in 2020. These research results belong to Wang, Xintai; Bennett, Troy L. R.; Ismael, Ali; Wilkinson, Luke A.; Hamill, Joseph; White, Andrew J. P.; Grace, Iain M.; Kolosov, Oleg V.; Albrecht, Tim; Robinson, Benjamin J.; Long, Nicholas J.; Cohen, Lesley F.; Lambert, Colin J.. HPLC of Formula: 523-27-3 The article mentions the following:

The realization of self-assembled mol.-electronic films, whose room-temperature transport properties are controlled by quantum interference (QI), is an essential step in the scale-up of QI effects from single mols. to parallel arrays of mols. Recently, the effect of destructive QI (DQI) on the elec. conductance of self-assembled monolayers (SAMs) has been investigated. Here, through a combined exptl. and theor. investigation, we demonstrate chem. control of different forms of constructive QI (CQI) in cross-plane transport through SAMs and assess its influence on cross-plane thermoelectricity in SAMs. It is known that the elec. conductance of single mols. can be controlled in a deterministic manner, by chem. varying their connectivity to external electrodes. Here, by employing synthetic methodologies to vary the connectivity of terminal anchor groups around aromatic anthracene cores, and by forming SAMs of the resulting mols., we clearly demonstrate that this signature of CQI can be translated into SAM-on-gold mol. films. We show that the conductance of vertical mol. junctions formed from anthracene-based mols. with two different connectivities differ by a factor of approx. 16, in agreement with theor. predictions for their conductance ratio based on CQI effects within the core. We also demonstrate that for mols. with thioether anchor groups, the Seebeck coefficient of such films is connectivity dependent and with an appropriate choice of connectivity can be boosted by ~50%. This demonstration of QI and its influence on thermoelectricity in SAMs represents a critical step toward functional ultra-thin-film devices for future thermoelec. and mol.-scale electronics applications. In addition to this study using 9,10-Dibromoanthracene, there are many other studies that have used 9,10-Dibromoanthracene(cas: 523-27-3HPLC of Formula: 523-27-3) was used in this study.

9,10-Dibromoanthracene(cas: 523-27-3) can be sublimated and oxidized to generate anthraquinone. Soluble in hot benzene and hot toluene, slightly soluble in alcohol, ether and cold benzene, insoluble in water.HPLC of Formula: 523-27-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Synthesis of bis-azobenzene derivatives with reactive bromohexyl unit and carboxylic acid group based on Disperse Yellow 7》 was published in European Journal of Chemistry in 2020. These research results belong to Darabut, Alina Madalina; Purikova, Olha Hennadiivna; Lobko, Yevheniia Volodymyrivna. Application of 629-03-8 The article mentions the following:

Two types of azobenzene derivatives I [R = CH2COOH, CH2COOEt, CH2(CH2)4CH2Br] based on Disperse Yellow 7 I [R = H] (4-[4-(phenylazo)phenylazo]-o-cresol) were synthesized. The first compound I [R = CH2(CH2)4CH2Br] was synthesized by alkylation of DY7 with an excess of 1,6-dibromohexane in the presence of a mild base (K2CO3). The second one I [R = CH2COOH] was obtained by the alk. hydrolysis of the ester bond of the newly obtained DY7 derivative with the ethoxycarbonyl group. The synthesized compounds were characterized by different spectral anal. techniques such as 1H NMR, 13C NMR, FT-IR, and UV-Vis. They could be employed for the synthesis of a wide variety of azo-based materials, which may be suitable for photochromic systems and mol. electronics applications. In the experiment, the researchers used many compounds, for example, 1,6-Dibromohexane(cas: 629-03-8Application 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 pyrrolo-tetrathiafulvalene molecular bridge (6PTTF6) to study redox switching behavior of single molecules; synthesis of water-soluble thermoresponsive polylactides.Application of 629-03-8

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Diversified Transformations of Tetrahydroindolizines to Construct Chiral 3-Arylindolizines and Dicarbofunctionalized 1,5-Diketones》 was published in Journal of the American Chemical Society in 2020. These research results belong to Zhang, Dong; Su, Zhishan; He, Qianwen; Wu, Zhikun; Zhou, Yuqiao; Pan, Chenjing; Liu, Xiaohua; Feng, Xiaoming. SDS of cas: 5437-45-6 The article mentions the following:

Enantioselective diverse synthesis of a small-mol. collection with structural and functional similarities or differences in an efficient manner is an appealing but formidable challenge. Asym. preparation and branching transformations of tetrahydroindolizines in succession present a useful approach to the construction of N-heterocycle-containing scaffolds with functional group, and stereochem. diversity. Herein, we report a breakthrough toward this end via an initial diastereo- and enantioselective [3 + 2] cycloaddition between pyridinium ylides and enones, following diversified sequential transformations. Chiral N,N’-dioxide-earth metal complexes enable the generation of optically active tetrahydroindolizines in situ, across the strong background reaction for racemate-formation. In connection with deliberate sequential transformations, involving convenient rearom. oxidation, and light-active aza-Norrish II rearrangement, the tetrahydroindolizine intermediates were converted into the final library including 3-arylindolizine derivatives and dicarbofunctionalized 1,5-dicarbonyl compounds More importantly, the stereochem. of four-stereogenic centered tetrahydroindolizine intermediates could be efficiently transferred into axial chirality in 3-arylindolizines and vicinal pyridyl and aryl substituted 1,5-diketones. In addition, densely functionalized cyclopropanes and bridged cyclic compounds were also discovered depending on the nature of the pyridinium ylides. Mechanism studies were involved to explain the stereochem. during the reaction processes. After reading the article, we found that the author used Benzyl 2-bromoacetate(cas: 5437-45-6SDS of cas: 5437-45-6)

Benzyl 2-bromoacetate(cas: 5437-45-6) belongs to benzyl acetate. Benzyl acetate is a synthetic chemical produced for industry from benzyl alcohol and acetic acid, but is also naturally present in the essential oils of many plants, including jasmine and ylang ylang.SDS of cas: 5437-45-6

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

《Synthesis of 2-Aminoquinazoline- and 2-Aminopyrimidine-Fused Hybrid Scaffolds by Copper-Catalyzed C(sp2)-N Coupling and Cyclization Followed by Oxidation》 was published in European Journal of Organic Chemistry in 2020. These research results belong to Kwak, Jung Pyo; Dao, Pham Duy Quang; Cho, Chan Sik. Electric Literature of C7H5BrO The article mentions the following:

2-(2-Bromoaryl)- and 2-(2-bromovinyl)-4,7-dimethoxybenzimidazoles are coupled and cyclized with cyanamide as a building block in DMF in the presence of a catalytic amount of a copper catalyst along with a base to give the corresponding 2-aminoquinazoline- and 2-aminopyrimidine-fused 4,7-dimethoxybenzimidazoles in good yields. Subsequent oxidation of such N-fused hybrid scaffolds by treatment of ceric ammonium nitrate in acetonitrile/H2O affords unprecedented 2-aminoquinazoline- and 2-aminopyrimidine-fused benzimidazolequinones. In the experimental materials used by the author, we found o-Bromobenzaldehyde(cas: 6630-33-7Electric Literature of C7H5BrO)

o-Bromobenzaldehyde(cas: 6630-33-7) is used in L-threonine aldolase-catalyzed enantio/diastereoselective aldol reactions.Electric Literature of C7H5BrOIt is a key starting material in the total synthesis of an anticancer agent, (-)-taxol.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary