Category: bromides-buliding-blocks

Koishi, Hideo published the artcile< A critical examination of Folin's method for determination of creatinine concentration in the urine>, Formula: C8H3BrO3, the main research area is .

A critical examination of Folin’s method (CA 8,2735) showed that the intensity of the color is sensitive to temperature with an increase in values of 0.5 to 1.1% per degree within 10 to 30 °.

Osaka City Medical Journal published new progress about Esters. 82-73-5 belongs to class bromides-buliding-blocks, and the molecular formula is C8H3BrO3, Formula: C8H3BrO3.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Wang, Qin; Li, Jin; Tu, Xianjun; Liu, Hongbo; Shu, Miao; Si, Rui; Ferguson, Calum T. J.; Zhang, Kai. A. I.; Li, Run published the artcile< Single Atomically Anchored Cobalt on Carbon Quantum Dots as Efficient Photocatalysts for Visible Light-Promoted Oxidation Reactions>, Product Details of C7H8BrN, the main research area is single atom cobalt carbon quantum dot photocatalyst coupling amine.

Generation of efficient light-induced charge separation inside the photocatalyst is an essential factor for a high catalytic efficiency. The usual immobilization of metal or metal oxide particles on semiconductor photocatalysts offers an uncontrolled assembly of active sites during the reaction. The introduction of single metal atoms on photocatalysts can lead to extremely high at. utilization and precise active sites. However, this approach is limited because of the lack of suitable photosensitizers for single atom immobilization. Here, we have designed photocatalytic carbon quantum dots with anchoring sites for single cobalt atoms in a defined Co-N4 structure via facile pyrolysis of vitamin B12. Carbon dots functioned as both light-harvesting antenna and support for the cobalt atom with high atom loadings up to 3.27 wt %. This new photocatalytic material demonstrated enhanced visible light absorption, efficient charge separation, and reduced electrochem. impedance, while single Co atoms acted as the active site with strong oxidative ability. As a result, the photocatalysts showed excellent visible light-promoted photocatalytic efficiency with oxygen evolution rates up to 168μmol h-1 g-1 via water oxidation, imine formation with high conversion (∼90%) and selectivity (>99%), and complete photodegradation of organic dyes.

Chemistry of Materials published new progress about Aromatic amines Role: PEP (Physical, Engineering or Chemical Process), RCT (Reactant), PROC (Process), RACT (Reactant or Reagent). 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Product Details of C7H8BrN.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Guo, Wei-Wei; Zhang, Chi; Ye, Ji-Jie; Liu, Zi-Kun; Chen, Kai; Wu, Chuan-De published the artcile< Suspending Ion Electrocatalysts in Charged Metal-Organic Frameworks to Improve the Conductivity and Selectivity in Electroorganic Synthesis>, Recommanded Product: 4-Bromobenzylamine, the main research area is suspended ion electrochem oxidation catalyst metal organic framework dehydrogenation; conductivity; electrocatalysis; electroselectivity; metal-organic frameworks; suspended ion catalysts.

Electroorg. synthesis is an environmentally friendly alternative to traditional synthetic methods; however, the application of this strategy is heavily hindered by low product selectivity. Metal-organic frameworks (MOFs) exhibit high selectivity in numerous catalytic reactions; however, poor conductivity heavily limits the application of MOFs in electroorg. synthesis. To realize the electrocatalytic application of MOFs in selective electroorg. synthesis, a practically applicable strategy by suspending ion electrocatalysts in charged MOFs is herein reported. This approach could markedly improve the product selectivity in electroorg. synthesis. In the electrocatalytic oxidative self-coupling of benzylamine experiments, the imine product selectivity is markedly improved from 61.3 to 94.9 %, when the MOF-based electrocatalyst is used instead of the corresponding homogeneous electrocatalyst under the identical conditions. Therefore, this work opens a new route to improve the product selectivity in electroorg. synthesis.

Chemistry – An Asian Journal published new progress about Adsorption. 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Recommanded Product: 4-Bromobenzylamine.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Ariano, R. published the artcile< Determining the proportion of cement in finished concrete>, COA of Formula: C8H3BrO3, the main research area is .

The methods of Kriege (cf. C. A. 25, 4680) and Florentin (cf. C. A. 21, 3440) consist in solubilizing the SiO2 of the cement (which is present as Ca silicates) by treating with HCl and then determining it by the usual methods. In Scheibe’s method (cf. C. A. 29, 8273.5) the coarse aggregate is eliminated, the residue (sand and cement) is pulverized and the portions soluble and insoluble in HCl are determined after calcination; it is assumed arbitrarily that the sum of the loss on ignition and the insoluble matter in the cement = 3%. It is then easy to calculate the amount of cement. None of these methods gives reliable results, and the same is true of indirect methods based only on the finished concrete and on samples of the sand and gravel entering into its composition There always remains a certain degree of uncertainty if the complete composition of the cement and the loss on ignition are not known. It should be noted that in all cases where the concrete itself is analyzed, the results give the composition of the finished concrete, and not that of the original mix. For the water also, it is possible to establish only the quantity which is actually combined in the concrete.

Ricerche studi ist. sper. stradale published new progress about Cement. 82-73-5 belongs to class bromides-buliding-blocks, and the molecular formula is C8H3BrO3, COA of Formula: C8H3BrO3.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Schmidt, Jurema; Rotter, Marco; Weiser, Tim; Wittmann, Sandra; Weizel, Lilia; Kaiser, Astrid; Heering, Jan; Goebel, Tamara; Angioni, Carlo; Wurglics, Mario; Paulke, Alexander; Geisslinger, Gerd; Kahnt, Astrid; Steinhilber, Dieter; Proschak, Ewgenij; Merk, Daniel published the artcile< A Dual Modulator of Farnesoid X Receptor and Soluble Epoxide Hydrolase To Counter Nonalcoholic Steatohepatitis>, Application of C9H8BrFO2, the main research area is benzylbenzamide dual modulator analog preparation nonalcoholic steatohepatitis; dual modulator analog FXR sEH benzylbenzamide analog pharmacokinetics.

Nonalcoholic steatohepatitis arising from Western diet and lifestyle is characterized by accumulation of fat in liver causing inflammation and fibrosis. It evolves as serious health burden with alarming incidence, but there is no satisfying pharmacol. therapy to date. Considering the disease’s multifactorial nature, modulation of multiple targets might provide superior therapeutic efficacy. In particular, farnesoid X receptor (FXR) activation that revealed antisteatotic and antifibrotic effects in clin. trials combined with inhibition of soluble epoxide hydrolase (sEH) as anti-inflammatory strategy promises synergies. To exploit this dual concept, we developed agents exerting partial FXR agonism and sEH inhibitory activity. Merging known pharmacophores and systematic exploration of the structure-activity relationship on both targets produced dual modulators with low nanomolar potency. Extensive in vitro characterization confirmed high dual efficacy in cellular context combined with low toxicity, and pilot in vivo data revealed favorable pharmacokinetics as well as engagement on both targets in vivo.

Journal of Medicinal Chemistry published new progress about Antifibrotic agents. 128577-47-9 belongs to class bromides-buliding-blocks, and the molecular formula is C9H8BrFO2, Application of C9H8BrFO2.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Li, Pinyi; Jia, Xiuwen; Ma, Xiaoli; Ma, Wenbo; Sheng, Yilin; Zhao, Jingwei; Zhao, Fei published the artcile< A Catalyst-Free Cascade Reaction for the Selective Assembly of 3-Hydroxyisoindolinones on Water>, Related Products of 3959-07-7, the main research area is hydroxyisoindolinone green preparation; alkynylbenzoic acid nitrogen nucleophile cascade.

A catalyst- and additive-free cascade reaction between 2-alkynylbenzoic acids and nitrogen-containing nucleophiles for the selective assembly of 3-hydroxyisoindolinones I [R1 = H, 4-Me, 6-F, etc.; R2 = H, n-Bu, Ph, etc.; R3 = n-Bu, Ph, Bn, etc.] under water was developed. This protocol featured readily available starting materials, an environmentally benign solvent, simple operation, extraordinarily broad substrate scope, good functional group tolerance, excellent selectivity, good to excellent yields, high atom- and step-economy, and high bond-forming efficiency, thus provided a convenient and highly efficient access to 3-hydroxyisoindolinones I.

Asian Journal of Organic Chemistry published new progress about Alkynes, aryl Role: RCT (Reactant), RACT (Reactant or Reagent). 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Related Products of 3959-07-7.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Shen, Yanling; Lei, Ning; Lu, Cong; Xi, Dailin; Geng, Xinxin; Tao, Pan; Su, Zhishan; Zheng, Ke published the artcile< Construction of sterically congested oxindole derivatives via visible-light-induced radical-coupling>, Related Products of 401-78-5, the main research area is oxindole preparation antitumor photochem; alkene enyne oxindole radical coupling reaction.

A visible-light-induced modular methodol. for the synthesis of complex 3,3′-disubstituted oxindole derivatives, e.g. I, is reported. A library of valuable fluoroalkyl-containing highly sterically congested oxindole derivatives can be synthesized by a catalytic three-component radical coupling reaction under mild conditions (metal and photocatalyst free, >80 examples). This strategy shows high functional group tolerance and broad substrate compatibility. Substrates include a wide variety of terminal or non-terminal alkenes, conjugated dienes (e.g. prop-1-en-2-ylbenzene), and enynes RC(:CH2)CCR1 (R = Me, Ph, R1 = H, Ph, cyclopropyl, 3-chloropropyl), and a broad array of polyfluoroalkyl iodide and oxindoles II (R2 = 7-Cl, 5-Br, 4,6-F2, etc., R3 = Ph, 5-methylthiophen-2-yl, 6-methoxynaphthalen-1-yl, etc.), which enables modular modification of complex drug-like compounds in one chem. step. The success of solar-driven transformation, large-scale synthesis, and the late-stage functionalization of bioactive mols., as well as promising tumor-suppressing biol. activities, highlights the potential for practical applications of this strategy. Mechanistic investigations, including a series of control experiments, UV-vis spectroscopy and DFT calculations, suggest that the reaction underwent a sequential two-step radical-coupling process and the photosensitive perfluoroalkyl benzyl iodides are key intermediates in the transformation.

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

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Wan, Lin-Xi; Zhen, Yong-Qi; He, Zhen-Xiang; Zhang, Yang; Zhang, Lan; Li, Xiaohuan; Gao, Feng; Zhou, Xian-Li published the artcile< Late-Stage Modification of Medicine: Pd-Catalyzed Direct Synthesis and Biological Evaluation of N-Aryltacrine Derivatives>, Application In Synthesis of 401-78-5, the main research area is tacrine aryl preparation Buchwald Hartwig cross coupling palladium catalyst; cholinesterase inhibitor aryltacrine; hepatotoxicity aryltacrine; neuroprotective aryltacrine; mol docking methoxypyridinyl tacrine acetylcholinesterase butyrylcholinesterase; blood brain barrier permeability aryltacrine.

A new series of N-aryltacrine derivatives was designed and synthesized as cholinesterase inhibitors by the late-stage modification of tacrine, using the palladium-catalyzed Buchwald-Hartwig cross-coupling reaction. In vitro inhibition assay against acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE) demonstrated that most of the synthesized compounds had potent AChE inhibitory activity with neg. inhibition of BuChE. Among them, N-(4-(trifluoromethyl)phenyl)-tacrine (I) and N-(4-methoxypyridin-2-yl)-tacrine (II) showed the most potent activity against AChE (IC50 values of 1.77 and 1.48μM, resp.). The anti-AChE activity of I and II was 3.5 times more than that of tacrine (IC50 value of 5.16μM). Compound II also displayed anti-BuChE activity with an IC50 value of 19.00μM. Cell-based assays against HepG2 and SH-SY5Y cell lines revealed that II had significantly lower hepatotoxicity compared to tacrine, with addnl. neuroprotective activity against H2O2-induced damage in SH-SY5Y cells. The advantages including synthetic accessibility, high potency, low toxicity, and adjunctive neuroprotective activity make compound II a new promising multifunctional candidate for the treatment of Alzheimer’s disease.

ACS Omega published new progress about Alzheimer disease. 401-78-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H4BrF3, Application In Synthesis of 401-78-5.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Pal, Ritesh; Chakraborty, Jeet; Mukhopadhyay, Titas Kumar; Kanungo, Ajay; Saha, Rimita; Chakraborty, Amit; Patra, Dipendu; Datta, Ayan; Dutta, Sanjay published the artcile< Substituent effect of benzyl moiety in nitroquinoxaline small molecules upon DNA binding: Cumulative destacking of DNA nucleobases leading to histone eviction>, Name: 4-Bromobenzylamine, the main research area is nitroquinoxaline preparation antitumor hydrophobicity SAR DNA binding destacking; Entropically favored; Hydrogen bond disruption; Hydrophobic interaction; In-vitro nucleosome disassembly; Mammalian cell cytotoxicity; Nucleobase destacking.

Cooperative disruption of Watson-Crick hydrogen bonds, as well as base-destacking, was shown to be triggered by a quinoxaline-based small mol. consisting of an N,N-dimethylaminopropyl tether, and a para-substituted benzyl moiety. This events led to superstructure formation and DNA condensation as evident from biophys. experiments and classical mol. dynamics simulations. The DNA superstructure formation by mono-quinoxaline derivatives I [R = 1-piperidyl, [3-(dimethylamino)propylamino]; R1 = benzyl, 2-thienylmethyl, (4-iodophenyl)methyl, etc.] was highly entropically favored and predominantly driven by hydrophobic interactions. Furthermore, oversupercoiling of DNA and base-destacking cumulatively induced histone eviction from in-vitro assembled nucleosomes at lower micromolar concentrations implicating biol. relevance. The DNA structural modulation and histone eviction capacity of the benzyl para-substituents were in the order: -I > -CF3> -Br > -Me > -OMe > -OH, which was largely guided by the polarity of benzyl para-substituent and the resulting mol. topol. The most hydrophobic derivative I [R = [3-(dimethylamino)propylamino], R1 = (4-iodophenyl)methyl] with para-iodo benzyl moiety caused maximal disruption of base pairing and generation of superstructures. Both these events gradually diminished as the polarity of the benzyl para-substituent increases. On the other hand, quinoxaline derivatives I having heterocyclic ring instead of benzyl ring, or in the absence of N,N-dimethylamino head-group, was incapable of inducing any DNA structural change and histone eviction. Further, the quinoxaline compounds I displayed potent anticancer activities against different cancer cell lines which directly correlates with the hydrophobic effects of the benzyl para-substituents. Overall, the study provided new insights into the mechanistic approach of DNA structural modulation driven histone eviction guided by the hydrophobicity of synthesized compounds leading to cellular cytotoxicity towards cancer cells.

European Journal of Medicinal Chemistry published new progress about Antitumor agents. 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Name: 4-Bromobenzylamine.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Bookser, Brett C.; Kasibhatla, Srinivas Rao; Appleman, James R.; Erion, Mark D. published the artcile< AMP Deaminase Inhibitors. 2. Initial Discovery of a Non-Nucleotide Transition-State Inhibitor Series>, SDS of cas: 14062-30-7, the main research area is coformycin aglycon analog preparation AMPDA inhibitor; adenylate adenosine deaminase inhibitor coformycin analog.

A series of N3-substituted coformycin aglycon analogs are described that inhibit AMP deaminase (AMPDA) or adenosine deaminase (ADA). The key steps involved in the preparation of these compounds are treating the sodium salt of 6,7-dihydroimidazo[4,5-d][1,3]diazepin-8(3H)-one with an alkyl bromide or an alkyl mesylate to generate the N3-alkylated compound, and (2) reducing the N3-alkylated compound with NaBH4. Selective inhibition of AMPDA was realized when the N3-substituent contained a carboxylic acid moiety. For example, the compound which has a hexanoic acid side chain inhibited AMPDA with a Ki = 4.2 μM and ADA with a Ki = 280 μM. Substitution of large lipophilic groups α to the carboxylate provided a moderate potency increase with maintained selectivity as exemplified by the α-benzyl analog (AMPDA Ki = 0.41 μM and ADA Ki > 1000 μM). These compounds, as well as others described in this series of papers, are the first compounds suitable for testing whether selective inhibition of AMPDA can protect tissue from ischemic damage by increasing local adenosine concentrations at the site of injury and/or by minimizing adenylate loss.

Journal of Medicinal Chemistry published new progress about Structure-activity relationship, enzyme-inhibiting. 14062-30-7 belongs to class bromides-buliding-blocks, and the molecular formula is C10H11BrO2, SDS of cas: 14062-30-7.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary