Category: bromides-buliding-blocks

Chu, Minzhe; Zhai, Yingying; Shang, Ningzhao; Zhang, Xiaoyu; Wang, Chun; Zhang, Yunrui; Wang, Haijun; Gao, Yongjun published the artcile< Functions of hydroxyapatite in fabricating N-doped carbon for excellent catalysts and supercapacitors>, HPLC of Formula: 3959-07-7, the main research area is hydroxyapatite nitrogen doped carbon fabrication catalyst supercapacitor.

Functions of hydroxyapatite (HAP) in fabricating nitrogen-containing carbon materials with 1,10-phenanthroline as a precursor were demonstrated. HAP can efficiently prevent 1,10-phenanthroline from subliming and promote it to graphitized carbon during the annealing process. More importantly, HAP favored the generation of active oxygen-containing groups on the final nitrogen-doped carbon NC(HAP), which exhibited excellent catalytic performance for the oxidative coupling of amines to imines (yield 84-95%) and remarkable electrochem. performance for supercapacitors. In electrochem. experiments, NC(HAP) exhibited an outstanding specific capacitance of 366 F/g at 0.5 A/g and an excellent capacitance retention of 98.5% after 5000 charge-discharge cycles at 10 A/g.

Catalysis Science & Technology published new progress about Amines Role: RCT (Reactant), RACT (Reactant or Reagent). 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, HPLC of Formula: 3959-07-7.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Yu, Peng; Hu, Jun; Wan, Rong; Li, Xi; Zheng, Shanlong; Xu, Yanhua published the artcile< Synthesis of N-(5-aryl-1,3,4-thiadiazol-2-yl)-2-(3-oxo-1,2-benzothiazol-2(3H)-yl)acetamide derivatives promoted by carbodiimide condensation>, HPLC of Formula: 16426-64-5, the main research area is benzoic acid thiosemicarbazide heterocyclization; thiadiazole preparation single crystal benzisothiazolinone condensation carbodiimide catalyst; acetamide preparation.

Novel N-(5-aryl-1,3,4-thiadiazol-2-yl)-2-(3-oxo-1,2-benzothiazol-2(3H)-yl)acetamide derivatives I [R = H, 3-CH3, 4-Cl, 2-Br, etc.] were prepared by 2-amino-5-substituted phenyl-1,3,4-thiadiazole and 2-(3-oxo-1,2-benzothiazol-2(3H)-yl) acetic acid condensation catalysis in a convenient and fast method. The intermediate compound 5-(2-chlorophenyl)-1,3,4-thiadiazol-2-amine was confirmed by single-crystal X-ray diffraction.

Journal of Chemical Research published new progress about Amides Role: SPN (Synthetic Preparation), PREP (Preparation). 16426-64-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H4BrNO4, HPLC of Formula: 16426-64-5.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Liedholm, Brita published the artcile< Copper(I)-catalyzed replacement of bromine by chloride ion in bromobenzoic acids>, Related Products of 603-78-1, the main research area is copper catalyst bromine exchange; bromobenzoate chloride exchange reaction.

Kinetics of the exchange reactions of 2,3-dibromobenzoic acid and of 2-bromobenzoic acid, catalyzed by dichlorocuprate(I) ion, were determined A tetrahedral intermediate complex involving the dichlorocuprate anion and the Br atom undergoing replacement was suggested.

Acta Chemica Scandinavica, Series B: Organic Chemistry and Biochemistry published new progress about Exchange reaction. 603-78-1 belongs to class bromides-buliding-blocks, and the molecular formula is C7H4Br2O2, Related Products of 603-78-1.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Liu, Xiangyu; Kaindl, Jonas; Korczynska, Magdalena; Stossel, Anne; Dengler, Daniela; Stanek, Markus; Hubner, Harald; Clark, Mary J.; Mahoney, Jake; Matt, Rachel Ann; Xu, Xinyu; Hirata, Kunio; Shoichet, Brian K.; Sunahara, Roger K.; Kobilka, Brian K.; Gmeiner, Peter published the artcile< An allosteric modulator binds to a conformational hub in the β2 adrenergic receptor>, Related Products of 20776-50-5, the main research area is beta 2 adrenergic receptor allosteric modulator agonists binding site.

Abstract: Most drugs acting on G-protein-coupled receptors target the orthosteric binding pocket where the native hormone or neurotransmitter binds. There is much interest in finding allosteric ligands for these targets because they modulate physiol. signaling and promise to be more selective than orthosteric ligands. Here we describe a newly developed allosteric modulator of the β2-adrenergic receptor (β2AR), AS408, that binds to the membrane-facing surface of transmembrane segments 3 and 5, as revealed by X-ray crystallog. AS408 disrupts a water-mediated polar network involving E1223.41 and the backbone carbonyls of V2065.45 and S2075.46. The AS408 binding site is adjacent to a previously identified mol. switch for β2AR activation formed by I3.40, P5.50 and F6.44. The structure reveals how AS408 stabilizes the inactive conformation of this switch, thereby acting as a neg. allosteric modulator for agonists and pos. allosteric modulator for inverse agonists. [graphic not available: see fulltext].

Nature Chemical Biology published new progress about Allosteric modulators. 20776-50-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H6BrNO2, Related Products of 20776-50-5.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Kim, Jungwon; Kim, Siin; Choi, Geunho; Lee, Geun Seok; Kim, Donghyeok; Choi, Jungkweon; Ihee, Hyotcherl; Hong, Soon Hyeok published the artcile< Synthesis of N-aryl amines enabled by photocatalytic dehydrogenation>, Related Products of 3959-07-7, the main research area is allylic amine visible light mediated regioselective photocatalytic dehydrogenation; aryl amine preparation.

The visible-light-induced photocatalytic synthesis of N-aryl amines was achieved by the CD of allylic amines. The unusual strategy using C6F5I as an hydrogen-atom acceptor enabled the mild and controlled CD of amines beared various functional groups and activated C-H bonds, suppressed side-reaction of the reactive N-aryl amine products. Thorough mechanistic studies suggested the involvement of single-electron and hydrogen-atom transfers in a well-defined order provided a synergistic effect in the control of the reactivity. Notably, the back-electron transfer process prevented the desired product from further reacting under oxidative conditions.

Chemical Science published new progress about Allyl amines Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 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

Lu, Dehua; Qu, Lailiang; Wang, Cheng; Luo, Heng; Li, Shang; Yin, Fucheng; Liu, Xingchen; Chen, Xinye; Luo, Zhongwen; Cui, Ningjie; Peng, Wan; Ji, Limei; Kong, Lingyi; Wang, Xiaobing published the artcile< Harmine-based dual inhibitors targeting histone deacetylase (HDAC) and DNA as a promising strategy for cancer therapy>, Safety of Methyl 4-(bromomethyl)-3-fluorobenzoate, the main research area is cancer therapy histone deacetylase harmine DNA damage; Cancer; DNA; DNA damage; HDAC; Harmine.

Overexpression of histone deacetylases (HDACs) are observed in different types of cancers, but histone deacetylase inhibitors (HDACIs) have not shown significant efficacy as monotherapy against solid tumors. Recently, studies demonstrated that it is promising to combine HDACIs with DNA damage agents to improve DNA damage level to gain better effect on treating solid tumor. Harmine has been demonstrated to cause DNA damage by intercalating DNA. Therefore, we designed a series of harmine-based inhibitors targeting HDAC and DNA with multi-target strategy, the most potential compound 27 could bind to DNA and cause DNA damage. Furthermore 27 caused cells apoptosis through p53 signaling pathway, and exhibited significant anti-proliferation effects against HCT-116 cells (IC50 = 1.41 μM). As a DNA damage agent, 27 displayed low toxicity in normal cells. Compound 27 was demonstrated as a dual inhibitor targeting HDAC (HDAC1 IC50 = 0.022 μM and HDAC6 IC50 = 0.45 μM) and DNA, and had the potential in the treatment of solid tumor.

Bioorganic Chemistry published new progress about Acetylation. 128577-47-9 belongs to class bromides-buliding-blocks, and the molecular formula is C9H8BrFO2, Safety of Methyl 4-(bromomethyl)-3-fluorobenzoate.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Ling, Bo; Yang, Wenjun; Wang, Yan-En; Mao, Jianyou published the artcile< Cooperative N-Heterocyclic Carbene/Palladium-Catalyzed Umpolung 1,4-Addition of Vinyl Bromides to Enals>, Related Products of 3893-18-3, the main research area is unsaturated carbonyl preparation cooperative catalyzed addition vinyl bromide enal.

A highly stereoselective umpolung 1,4-addition of vinyl bromides to enals is enabled by NHC/palladium cooperative catalysis, generating various valuable γ,δ-unsaturated carbonyl derivatives in excellent yields (up to 90%). A detailed mechanism investigation indicates the NHC act as both organocatalyst and ligand for palladium during this system.

Organic Letters published new progress about Addition reaction. 3893-18-3 belongs to class bromides-buliding-blocks, and the molecular formula is C9H7BrO, Related Products of 3893-18-3.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Lee, Kun-Hung; Yen, Wan-Ching; Lin, Wen-Hsing; Wang, Pei-Chen; Lai, You-Liang; Su, Yu-Chieh; Chang, Chun-Yu; Wu, Cai-Syuan; Huang, Yu-Chen; Yang, Chen-Ming; Chou, Ling-Hui; Yeh, Teng-Kuang; Chen, Chiung-Tong; Shih, Chuan; Hsieh, Hsing-Pang published the artcile< Discovery of BPR1R024, an Orally Active and Selective CSF1R Inhibitor that Exhibits Antitumor and Immunomodulatory Activity in a Murine Colon Tumor Model>, Safety of 2-Amino-4-bromobenzoic acid, the main research area is quinazoline derivative preparation oral CSF1R inhibitor antitumor immunomodulator.

Colony-stimulating factor-1 receptor (CSF1R) is implicated in tumor-associated macrophage (TAM) repolarization and has emerged as a promising target for cancer immunotherapy. Herein, we describe the discovery of orally active and selective CSF1R inhibitors by property-driven optimization of BPR1K871 (9), our clin. multitargeting kinase inhibitor. Mol. docking revealed an addnl. nonclassical hydrogen-bonding (NCHB) interaction between the unique 7-aminoquinazoline scaffold and the CSF1R hinge region, contributing to CSF1R potency enhancement. Structural studies of CSF1R and Aurora kinase B (AURB) demonstrated the differences in their back pockets, which inspired the use of a chain extension strategy to diminish the AURA/B activities. A lead compound BPR1R024 (12) exhibited potent CSF1R activity (IC50 = 0.53 nM) and specifically inhibited protumor M2-like macrophage survival with a minimal effect on antitumor M1-like macrophage growth. In vivo, oral administration of 12 mesylate delayed the MC38 murine colon tumor growth and reversed the immunosuppressive tumor microenvironment with the increased M1/M2 ratio.

Journal of Medicinal Chemistry published new progress about Anti-inflammatory agents. 20776-50-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H6BrNO2, Safety of 2-Amino-4-bromobenzoic acid.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Qin, Mengmeng; Xu, Yuxiao; Gao, H.; Han, Guoying; Cao, Rong; Guo, Peili; Feng, Wei; Chen, Li published the artcile< Tetraphenylethylene@graphene oxide with switchable fluorescence triggered by mixed solvents for the application of repeated information encryption and decryption>, Product Details of C26H18Br2, the main research area is aggregation induced emission optical information storage; composite; graphene oxide; solvent treatment; switchable microstructure and fluorescence; tetraphenylethylene.

Aggregation-induced emission (AIE) materials present unique solid-state fluorescence. However, there remains a challenge in the switching of fluorescence quenching/emitting of AIE materials, limiting the application in information encryption. Herein, we report a composite of tetraphenylethylene@graphene oxide (TPE@GO) with switchable microstructure and fluorescence. We choose GO as a fluorescence quencher to control the fluorescence of TPE by controlling the aggregation structure. First, TPE coating with an average thickness of about 31 nm was deposited at the GO layer surface, which is the critical thickness at which the fluorescence can be largely quenched because of the fluorescence resonance energy transfer. After spraying a mixed solvent (good and poor solvents of TPE) on TPE@GO, a blue fluorescence of TPE was emitted during the drying process. During the treatment of mixed solvents, the planar TPE coating was dissolved in THF first and then the TPE mols. aggregated into nanoparticles (an average diameter of 65 nm) in H2O during the volatilization of THF. We found that the fluorescence switching of the composite is closely related to the microstructural change of TPE between planar and granular structures, which can make the upper TPE mols. in and out of the effective quenching region of GO. This composite, along with the treatment method, was used as an invisible ink in repeated information encryption and decryption. Our work not only provides a simple strategy to switch the fluorescence of solid-state fluorescent materials but also demonstrates the potential for obtaining diverse material structures through compound solvent treatment.

ACS Applied Materials & Interfaces published new progress about Aggregation. 184239-35-8 belongs to class bromides-buliding-blocks, and the molecular formula is C26H18Br2, Product Details of C26H18Br2.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Lin, Shuangzheng; Zhao, Gui-Ling; Deiana, Luca; Sun, Junliang; Zhang, Qiong; Leijonmarck, Hans; Cordova, Armando published the artcile< Dynamic kinetic asymmetric domino oxa-Michael/carbocyclization by combination of transition-metal and amine catalysis: catalytic enantioselective synthesis of dihydrofurans>, Recommanded Product: 3-(4-Bromophenyl)acrylaldehyde, the main research area is dihydrofuran derivative enantioselective synthesis; propargyl alc enal Michael carbocyclization chiral amine; transition metal catalyst reduction oxidation epoxidation.

An unprecedented highly enantioselective domino oxa-Michael/carbocyclization between propargyl alcs. and enals by combination of asym. amine and transition-metal catalysis has been developed. The DYKAT gives access to valuable dihydrofurans I (R = 4-NO2-C6H4, 4-CN-C6H4, 3-NO2-C6H4, 4-Br-C6H4, 4-Cl-C6H4, Ph, 4-Me-C6H4, 2-naphtheyl, 4-F-C6H4, nPr) in good to high yields with e.r. of up to 99.5 :0.5. The reduction of I (R = 2-naphthyl, 4-Cl-C6H4) yields alcs. Oxidation or epoxidation reactions are investigated.

Chemistry – A European Journal published new progress about Alcohols, propargyl Role: RCT (Reactant), RACT (Reactant or Reagent). 3893-18-3 belongs to class bromides-buliding-blocks, and the molecular formula is C9H7BrO, Recommanded Product: 3-(4-Bromophenyl)acrylaldehyde.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary