Tag: M.W:200-300

Category: oxazolidine. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: Cupric bromide, is researched, Molecular Br2Cu, CAS is 7789-45-9, about Tris(3-fluorophenyl)antimony Dihalides: Synthesis and Structure.

Tris(3-fluorophenyl)antimony dichloride, dibromide, and diiodide were obtained by the reaction of tris(3-fluorophenyl)antimony with Cl, Br, and I in benzene. Dichloride and dibromide were also obtained in the reaction of tris(3-fluorophenyl)antimony with Cu dihalides in acetone. Tris(3-fluorophenyl)antimony difluoride was obtained in the exchange reaction between tris(3-fluorophenyl)antimony dichloride and NaF. According to single crystal x-ray diffraction data, centrosym. dichloride and dibromide mols. and four types of crystallog. independent diiodide mols. have a trigonal-bipyramidal configuration with electroneg. ligands in axial positions.

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Synthetic Route of C12H16N2O2. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone, is researched, Molecular C12H16N2O2, CAS is 67914-60-7, about Synthesis of novel N-9 substituted 6-(4-(4-propoxyphenyl)piperazin-1-yl)-9H-purine derivatives as inducers of apoptosis in MCF-7 breast cancer cells. Author is Sunagar, Manjunath G.; Gaonkar, Supreet; Sunagar, Santosh G.; Deshapande, Narahari; Belavagi, Ningaraddi S.; Khazi, Imtiyaz Ahmed M..

A series of N-9 substituted 6-(4-(4-propoxyphenyl)piperazin-1-yl)-9H-purine derivatives (PP05-PP21) were prepared and evaluated for their anticancer activity against a panel of human cancer cell lines. Evaluation of results revealed that some of the synthesized compounds exhibited promising anticancer activity against the examined cancer cell lines. The structure-activity relationship (SAR) studies in the present work revealed that simple N-9 alkyl substituted 6-(4-(4-propoxyphenyl)piperazin-1-yl)-9H-purines are potent anticancer agents. Among all the compounds, PP17 (9-sec-butyl-6-(4-(4-propoxyphenyl)piperazin-1-yl)-9H-purine) showed good inhibitory activity against MCF-7 cells. Cell cycle anal. of the compound suggested that induces G2/M phase arrest. Biochem. experiments showed that PP17 significantly induced MCF-7 cell apoptosis. Therefore, compound PP17 with a potent in vitro anticancer activity can serve as a promising lead compound for further study.

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In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Development of Candidates for Positron Emission Tomography (PET) Imaging of Ghrelin Receptor in Disease: Design, Synthesis, and Evaluation of Fluorine-Bearing Quinazolinone Derivatives, published in 2018-02-08, which mentions a compound: 67914-60-7, Name is 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone, Molecular C12H16N2O2, Category: oxazolidine.

Mol. imaging with positron emission tomog. (PET) is an attractive platform for noninvasive detection and assessment of disease. The development of a PET imaging agent targeting the ghrelin receptor (growth hormone secretagogue receptor type 1a or GHS-R1a) has the potential to lead to the detection and assessment of the higher than normal expression of GHS-R1a in diseases such as prostate, breast, and ovarian cancer. To enable the development of 18F radiopharmaceuticals, we have designed and synthesized three series of quinazolinone derivatives, resulting in the identification of two compound with subnanomolar binding affinity and one fluorine-bearing compound I with picomolar binding affinity (20 pM), representing the highest binding affinity for GHS-R1a reported to date. Two lead compounds (II, IC50 = 20.6 nM; III, IC50 = 9.3 nM) were successfully 18F-radiolabeled with radiochem. purity of greater than 99%. Mol. modeling studies were performed to shed light on ligand-receptor interactions.

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Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone, is researched, Molecular C12H16N2O2, CAS is 67914-60-7, about Electrochemical Synthesis of a New Derivative of 1,4-Dihydroxybenzene: Embedded Nucleophile in the Structure of Electrophile.Application of 67914-60-7.

The electrochem. oxidation of 4-(Piperazin-1-yl)phenols (1a,b) was studied in the H2O, MeCN and nitromethan by cyclic voltammetry and controlled-potential coulometry. P-quinone-imines generated of oxidation 4-(Piperazin-1-yl)phenols after the hydrolysis reaction participate in Michael-addition reactions with released piperazine of hydrolysis reaction of p-quinone imines. The present work led to the development of a facile and environmentally friendly electrochem. method for the synthesis of a new derivative of 1,4-dihydroxybenzene under green conditions. The effect of H2O as a solute on the electrochem. response of 4-(Piperazin-1-yl)phenols (1a,b) was examined in the MeCN (AN) and nitromethane (NM) solvent.

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Perego, Michele; Kuschlan, Stefano; Seguini, Gabriele; Chiarcos, Riccardo; Gianotti, Valentina; Antonioli, Diego; Sparnacci, Katia; Laus, Michele published an article about the compound: Cupric bromide( cas:7789-45-9,SMILESS:[Cu+2].[Br-].[Br-] ).Reference of Cupric bromide. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:7789-45-9) through the article.

Phosphorus δ-layers in SiO2 were prepared by means of poly(Me methacrylate) (PMMA) terminated with a phosphorus-containing moiety acting as an anchoring group. In particular, grafting of two P-terminated PMMA samples with Mn = 7.5 kg/mol (D = 1.14) and Mn = 17.8 kg/mol (D = 1.23) onto 10 nm thick SiO2 films deposited on Si substrates was investigated, focusing on the thickness evolution of the brush layer as a function of the processing parameters, i.e., annealing temperature and time. Upon removal of the polymer chains and subsequent encapsulation into a SiO2 matrix, the concentration of phosphorus atoms into the P δ-layers has been monitored by time-of-flight secondary ion mass spectrometry. The effective P dose in the P δ-layer is mainly dictated by the mol. weight of the P-terminated PMMA, and the doping process results are highly reproducible, provided that tight control over the exptl. protocol is granted. However, although the grafting d. is expected to progressively increase as a function of annealing time with a linear correlation between grafting d. and thickness, the measured P dose in the δ-layers is observed to follow the opposite trend. This effect was accounted for by considering a distortion of the mol. weight distribution of the grafted species with respect to the initial mol. weight distribution of the polymer. The overall picture reveals important information about the mechanism and dynamics governing the “”grafting to”” process of P-terminated PMMA polymers onto nondeglazed Si substrates.

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Jing, Benxin; Wang, Xiaofeng; Shi, Yi; Zhu, Yingxi; Gao, Haifeng; Fullerton-Shirey, Susan K. published an article about the compound: Cupric bromide( cas:7789-45-9,SMILESS:[Cu+2].[Br-].[Br-] ).Recommanded Product: 7789-45-9. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:7789-45-9) through the article.

Polyethylene oxide (PEO)-based polymers are commonly studied for use as a solid polymer electrolyte for rechargeable Li-ion batteries; however, simultaneously achieving sufficient mech. integrity and ionic conductivity has been a challenge. To address this problem, a customized polymer architecture is demonstrated wherein PEO bottle-brush arms are hyperbranched into a star architecture and then functionalized with end-grafted, linear PEO chains. The hierarchical architecture is designed to minimize crystallinity and therefore enhance ion transport via hyperbranching, while simultaneously addressing the need for mech. integrity via the grafting of long, PEO chains (Mn = 10,000). The polymers are doped with lithium bis(trifluoromethane) sulfonimide (LiTFSI), creating hierarchically hyperbranched (HB) solid polymer electrolytes. Compared to electrolytes prepared with linear PEO of equivalent mol. weight, the HB PEO electrolytes increase the room temperature ionic conductivity from ∼ 2.5 x 10-6 to 2.5 x 10-5 S/cm. The conductivity increases by an addnl. 50% by increasing the block length of the linear PEO in the bottle brush arms from Mn = 1,000 to 2,000. The mech. properties are improved by end-grafting linear PEO (Mn = 10,000) onto the terminal groups of the HB PEO bottle-brush. Specifically, the Young’s modulus increases by two orders of magnitude to a level comparable to com. PEO films, while only reducing the conductivity by 50% below the HB electrolyte without grafted PEO. This study addresses the trade-off between ion conductivity and mech. properties, and shows that while significant improvements can be made to the mech. properties with hierarchical grafting of long, linear chains, only modest gains are made in the room temperature conductivity

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The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone( cas:67914-60-7 ) is researched.Safety of 1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone.Nematollahi, Davood; Amani, Amene published the article 《Electrochemical synthesis of the new substituted phenylpiperazines》 about this compound( cas:67914-60-7 ) in Journal of Electroanalytical Chemistry. Keywords: phenylpiperazine derivative electrooxidation electrosynthesis arylsulfinic acid. Let’s learn more about this compound (cas:67914-60-7).

Electrochem. oxidation of 1-(4-(4-hydroxyphenyl)piperazin-1-yl)ethanone (1) has been studied in the presence of arylsulfinic acids (3a-c) as nucleophiles in aqueous solutions using cyclic voltammetry and controlled-potential coulometry methods. The results revealed that quinone-imine derived from oxidation of 1 participates in Michael type addition reaction with arylsulfinic acids and via an EC mechanism converts to the corresponding new phenylpiperazine derivatives The present work has led to the development of a facile and environmentally friendly reagent-less electrochem. method for synthesis of some new phenylpiperazine derivatives in aqueous solutions with high atom economy and safe waste under ambient conditions and in an undivided cell using a carbon electrode.

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Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 7789-45-9, is researched, SMILESS is [Cu+2].[Br-].[Br-], Molecular Br2CuJournal, ACS Macro Letters called Activation of Antibiotic-Grafted Polymer Brushes by Ultrasound, Author is Zou, Miancheng; Zhao, Pengkun; Huo, Shuaidong; Goestl, Robert; Herrmann, Andreas, the main research direction is antibiotic polymer brush ultrasound.Name: Cupric bromide.

The ultrasound-mediated activation of drugs from macromol. architectures using the principles of polymer mechanochem. (sonopharmacol.) is a promising strategy to gain spatiotemporal control over drug activity. Yet, conceptual challenges limit the applicability of this method. Especially low drug-loading content and low mechanochem. efficiency require the use of high carrier mass concentrations and prolonged exposure to ultrasound. Moreover, the activated drug is generally shielded by the hydrodynamic coil of the attached polymer fragment leading to a decreased drug potency. Here we present a carrier design for the ultrasound-induced activation of vancomycin, which is deactivated with its H-bond-complementary peptide target sequence. We show that the progression from mechanophore-centered linear chains to mechanophore-decorated polymer brushes increases drug-loading content, mechanochem. efficiency, and drug potency. These results may serve as a design guideline for future endeavors in the field of sonopharmacol.

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Reference of Cupric bromide. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: Cupric bromide, is researched, Molecular Br2Cu, CAS is 7789-45-9, about A theoretical approach to demystify the role of copper salts and O2 in the mechanism of C-N bond cleavage and nitrogen transfer. Author is Ghosh, Boyli; Banerjee, Ambar; Roy, Lisa; Manna, Rabindra Nath; Nath, Rounak; Paul, Ankan.

CN bond scission can be a potential avenue for functionalization of chem. bonds. Primarily, rupture of CN bonds in organonitriles are accomplished by protonation, reductive cleavage and metathesis techniques to furnish metal nitride moieties suitable to execute nitrogen transfer reactions. We have conducted an extensive computational study, using d. functional theory (DFT), to unravel the intricate mechanistic pathways traversed in the copper-promoted CN bond cleavage of coordinated cyanide anion under a dioxygen atm., which enables a nitrogen transfer to various aldehydes. Furthermore, detailed electronic structure anal. of the intermediates and the transition states along with the mechanistic corridors using ab initio multireference CASSCF calculations for two different copper promoters, CuCN and CuBr2, revealed that in both cases radical based pathways are operative, which is in sound agreement with the exptl. findings. This is a unique instance of oxygen activation mechanism which is initiated by single electron transfer from the carbon center of the nitrile moiety; whereas the major driving force of this mechanism is CuII/I redox cycle operating on the metal center. Our study revealed that the copper salts act as the “”electron pool”” in this unique nitrogen transfer reaction forming aryl nitrile from aryl aldehydes.

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Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Article, Nanotechnology called A one-step synthesis of ultra-long silver nanowires with ultra-high aspect ratio above2000 and its application in flexible transparent conductive electrodes, Author is Zhang, Lu; Jiang, Fuliang; Wu, Bisheng; Lv, Chencheng; Wu, Minghua, which mentions a compound: 7789-45-9, SMILESS is [Cu+2].[Br-].[Br-], Molecular Br2Cu, Formula: Br2Cu.

Silver nanowires (AgNWs), appear as an extremely promising candidate for the next generation of flexible transparent conductive electrodes (FTCEs). However, the performance of AgNWs-FTCEs was severely limited by the aspect ratio of AgNWs, while it was still a big challenge to fabricate AgNWs with high aspect ratio nowadays. To improve the aspect ratio of AgNWs, bromide ion (Br-), cupric ion (Cu2+) and polyvinylpyrrolidone (PVP, Mw≈1300 000) which are beneficial for the synthesis of high aspect ratio AgNWs, were introduced in this article. The high quality and uniform AgNWs with the average diameter of 77.6 nm and the aspect ratio above 2000 were fabricated via a one-step solvothermal method. The effects of reaction time, molar ratio of AgNO3 to PVP and the concentration of CuBr2 on the aspect ratio of AgNWs were discussed. The mechanism of the synthesis of high aspect ratio AgNWs was explored. After that, the prepared AgNWs were spin-coated on the surface of PET film, the FTCEs based on the ultra-high aspect ratio AgNWs without any post-treatments exhibits relatively high transmittance, low haze and low sheet resistance, and the AgNWs have little effect on the optical performance of pristine PET film. The outstanding performance of the prepared FTCEs indicated that the ultra-high aspect ratio AgNWs are ideal materials in the application of FTCEs, and the method of fabricating AgNWs could provide a direction to the high aspect ratio AgNWs.

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Oxazolidine – Wikipedia,
Oxazolidine | C3H7NO – PubChem