Academic literature on the topic 'Phenyl boronic acid'

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Journal articles on the topic "Phenyl boronic acid"

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Lücke, Ana-Luiza, Sascha Wiechmann, Tyll Freese, Zong Guan, and Andreas Schmidt. "Palladium complexes of anionic N-heterocyclic carbenes derived from sydnones in catalysis." Zeitschrift für Naturforschung B 71, no. 6 (2016): 643–50. http://dx.doi.org/10.1515/znb-2016-0006.

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AbstractThe anion of N-phenylsydnone, which can be generated on treatment of N-phenylsydnone with cyanomethyllithium without decomposition, can be represented as tripolar zwitterionic and as anionic N-heterocyclic carbene resonance forms. Its palladium complex was prepared from 4-bromo-3-phenylsydnone and tetrakis(triphenylphosphine)palladium and proved to be active as catalyst in Suzuki-Miyaura reactions. Thus, 2,5-dibromo-3,4-dinitrothiophene was effectively converted into 2,5-diaryl-3,4-dinitrothiophenes with 1-naphthyl, (4-trifluoromethoxy)phenyl, [4-(methylsulfanyl)phenyl], and biphenyl-4
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Zhang, Dan, Laura E. Harrington, Hiroo Tanaka, and Robert Pelton. "[3-(Propenamido)phenyl]boronic acid." Acta Crystallographica Section E Structure Reports Online 63, no. 12 (2007): o4628. http://dx.doi.org/10.1107/s1600536807055389.

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Atia, Alaa A., and Masanari Kimura. "Oxidative Hydroxylation of Aryl Boronic Acid Catalyzed by Co-porphyrin Complexes via Blue-Light Irradiation." Catalysts 10, no. 11 (2020): 1262. http://dx.doi.org/10.3390/catal10111262.

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Oxidative reactions often require unstable and environmentally harmful oxidants; therefore, the investigation of safer alternatives is urgent. Here, the hydroxylation of aryl boronic acid in the presence of Co-complexes is demonstrated. Tetrakis(4-carboxyphenyl) Co(II)-porphyrin was combined with biodegradable polymers such as chitosan catalyzed hydroxylation of phenyl boronic acids to form phenol derivatives under blue-light irradiation. This catalytic system can be used as an eco-friendly oxidation process that does not release oxidizing agents into the atmosphere.
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Zhang, Rui, Yundi Zhang, Chunhua Ge, Jinpeng Miao, and Xiangdong Zhang. "Two closely related {4-[(N-substituted amino)(diethoxyphosphoryl)methyl]phenyl}boronic acids." Acta Crystallographica Section C Structural Chemistry 73, no. 1 (2017): 57–60. http://dx.doi.org/10.1107/s2053229616019707.

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Organic phosphonic acids and organic phosphonic acid esters have been of much interest due to their applications in the fields of medicine, agriculture and industrial chemistry. Boronic acids can act as synthetic intermediates and building blocks and are used in sensing, protein manipulation, therapeutics, biological labelling and separation. The additional introduction of an aminophosphonic acid group into a boronic acid may give new opportunities for application. To study the structure of such multifunctional compounds, we prepared two new derivatives which can be easily converted to the cor
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Shanmugam, Gnanendra, Taehyeon Kim, and Junhyun Jeon. "In Silico Identification of Potential Inhibitor Against a Fungal Histone Deacetylase, RPD3 from Magnaporthe Oryzae." Molecules 24, no. 11 (2019): 2075. http://dx.doi.org/10.3390/molecules24112075.

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Histone acetylation and deacetylation play an essential role in the epigenetic regulation of gene expression. Histone deacetylases (HDAC) are a group of zinc-binding metalloenzymes that catalyze the removal of acetyl moieties from lysine residues from histone tails. These enzymes are well known for their wide spread biological effects in eukaryotes. In rice blast fungus, Magnaporthe oryzae, MoRPD3 (an ortholog of Saccharomyces cerevisiae Rpd3) was shown to be required for growth and development. Thus in this study, the class I HDAC, MoRpd3 is considered as a potential drug target, and its 3D s
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Tsai, Ching-Hua, Yu-Wen Fang, Hui-Ting Chen, and Chai-Lin Kao. "Accelerated hydrolysis of boronic acid in a modified poly(amidoamine) dendrimer: identification of a factor leading to the production of an impurity in boronic acid containing poly(amidoamine) dendrimers." Canadian Journal of Chemistry 95, no. 9 (2017): 984–90. http://dx.doi.org/10.1139/cjc-2017-0209.

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The preparation of boronic acid containing dendrimers is still a difficult task in dendrimer chemistry. In this investigation, an unanticipated hydrolysis product (4) was identified during the preparation of (G:2)-PAMAM-dendri-(4-phenyl boronic acid)14 (3) by acquiring its 1H NMR, 13C NMR, and UV–vis absorption spectra and IR spectra and comparing them with those of 4-hydroxylbenzoic acid (5). Furthermore, an Alizarin Red S staining analysis, ICP-MS, and 11B NMR spectrum indicated the lack of boronic acid in 4. Finally, treatment of 3 with hydrogen peroxide gave a product that was determined t
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Kamble, Rohit B., Santosh S. Chavan, and Gurunath Suryavanshi. "An efficient heterogeneous copper fluorapatite (CuFAP)-catalysed oxidative synthesis of diaryl sulfone under mild ligand- and base-free conditions." New Journal of Chemistry 43, no. 3 (2019): 1632–36. http://dx.doi.org/10.1039/c8nj04845b.

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Klis, Tomasz, and Janusz Serwatowski. "{2-[(2,6-Difluorophenoxy)methyl]phenyl}boronic acid." Acta Crystallographica Section E Structure Reports Online 65, no. 10 (2009): o2348. http://dx.doi.org/10.1107/s1600536809035235.

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Nair, Priya A., та K. Sreenivasan. "Non enzymatic colorimetric detection of glucose using cyanophenyl boronic acid included β-cyclodextrin stabilized gold nanoparticles". Analytical Methods 8, № 9 (2016): 2082–87. http://dx.doi.org/10.1039/c5ay02716k.

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Fang, Guiqian, Hao Wang, Zhancun Bian, et al. "2-(4-Boronophenyl)quinoline-4-carboxylic acid derivatives: Design and synthesis, aggregation-induced emission characteristics, and binding activity studies for D-ribose with long-wavelength emission." Journal of Chemical Research 44, no. 3-4 (2019): 152–60. http://dx.doi.org/10.1177/1747519819893642.

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Long-wavelength fluorescent sensors with large Stokes shifts show useful applications in chemical biology and clinical laboratory diagnosis. We have recently reported [4-(4-{[3-(4-boronobenzamido)propyl]carbamoyl}quinolin-2-yl)phenyl]boronic acid that can selectively recognize d-ribose in a buffer solution of pH 7.4. However, the short emission wavelength (395 nm) and aggregation-caused quenching effect are not conducive to applications as a sensor. Novel diboronic acid compounds are synthesized using 2-(4-boronophenyl)quinoline-4-carboxylic acid as the building block and p-phenylenediamine as
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Dissertations / Theses on the topic "Phenyl boronic acid"

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Zakharova, K., A. Mednikova, V. Rumyantsev, and T. Genusova. "Synthesis of Boron Carbide from Boric Acid and Carbon-Containing Precursors." Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35601.

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The paper compares low-temperature techniques for boron carbide synthesis. Boron carbide was syn-thesized via reaction between boric acid and various carbon precursors, e.g. phenol-formaldehyde resin, su-crose, carbon black, and potato starch. Initial compositions and carbon precursor preparation techniques were selected for synthesis. The resulting products were characterized by IR spectrometry, X-ray diffrac-tion (XRD) and scanning electron microscopy. Possible boron carbide yields up to 95 % of the theoretical yield as calculated from initial boron contents at temperatures of 1550 oС were d
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Book chapters on the topic "Phenyl boronic acid"

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Ishihara, Kazuaki. "Boron reagents." In Lewis Acid Reagents. Oxford University PressOxford, 1999. http://dx.doi.org/10.1093/oso/9780198500995.003.0003.

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Abstract Arylboron reagents with electron-withdrawing aromatic groups and chiral boron reagents as Lewis acid catalysts are described in this chapter. The classical boron Lewis acids, BX3, RBX2 and R2BX (X = F, Cl, Br, OTf) have become popular tools in organic synthesis. In general, these are used stoichiometrically in organic transformations under anhydrous conditions, since the presence of even a small amount of water causes rapid decomposition or deactivation of the promoters. To obviate some of these inherent problems, we have demonstrated the potential of tris(pentafluorophenyl)boron (1),
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Taber, Douglass F. "Enantioselective Synthesis of Alcohols and Amines: The Doi Synthesis of Apratoxin C." In Organic Synthesis. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190646165.003.0034.

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Hiromitsu Takayama of Chiba University used (Org. Lett. 2014, 16, 5000) the Itsuno-Corey protocol to reduce the enone 1 to the allylic alcohol 2. Peiming Gu of Ningxia University developed (Org. Lett. 2014, 16, 5339) a Cu catalyst that cyclized the pro­chiral 3 to 4 in high ee. Xiaoming Feng of Sichuan University effected (Org. Lett. 2014, 16, 3938) enantioselective Baeyer–Villiger oxidation of the racemic cyclopentanone 5, converting one enantiomer to the δ-lactone 6. The velocity of catalytic osmylation is often limited by slow turnover of the interme­diate osmate ester. Koichi Narasaka, the
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Taber, Douglass F. "Substituted Benzenes: The Kirsch Synthesis of Cybrodol." In Organic Synthesis. Oxford University Press, 2013. http://dx.doi.org/10.1093/oso/9780199965724.003.0063.

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Stephen L. Buchwald of MIT established (J. Am. Chem. Soc. 2010, 132, 14076) a Pd-catalyzed protocol for conversion of an aryl triflate 1 to the halide 2. Jie Wu of Fudan University prepared (Tetrahedron Lett. 2010, 51, 6646) aromatic halides from the corresponding carboxylic acids. Yong-Chua Teo of Nanyang Technological University described (Tetrahedron Lett . 2010, 51, 3910) the Mn-mediated conversion of 3 to 5, suggesting a benzyne intermediate. Takanori Shibata of Waseda University effected (Synlett 2010, 2601) the direct Ru-mediated coupling of aryl halides with amines, and Paul Helquist o
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Taber, Douglass. "Substituted Benzenes: The Alvarez-Manzaneda Synthesis of (-)-Taiwaniquinone G." In Organic Synthesis. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199764549.003.0065.

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Continuing efforts toward the direct functionalization of aromatic C-H bonds, Nobutaka Fujii and Hiroaki Ohno of Kyoto University described (Chem. Commun. 2009, 3413) a Pd-mediated protocol for the ortho hydroxylation of aryl tetrahydropyrimidines such as 1. To use a boronic acid as an activating/directing group, Michinori Suginome, also of Kyoto University, devised (J. Am. Chem. Soc. 2009, 131, 7502) the pyrazolylpyridyl derivative 3. The product 4 could be returned to the boronic acid or carried on to the borate ester, in each case with recovery of the directing group. Eiichi Nakamura of the
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Taber, Douglass F. "Preparation of Benzene Derivatives: The Yu/Baran Synthesis of (+)-Hongoquercin A." In Organic Synthesis. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190646165.003.0061.

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Lutz Ackermann of the Georg-August-Universität Göttingen oxidized (Org. Lett. 2013, 15, 3484) the anisole derivative 1 to the phenol 2. Melanie S. Sanford of the University of Michigan devised (Org. Lett. 2013, 15, 5428) complementary condi­tions for either para acetoxylation of 3, illustrated, to give 4, or meta acetoxylation. Lukas J. Goossen of the Technische Universität Kaiserlautern developed (Synthesis 2013, 45, 2387) conditions for the cascade alkoxylation/decarboxylation of 5 to give 6. Cheol-Hong Cheon of Korea University showed (J. Org. Chem. 2013, 78, 12154) that the boronic acid of
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Taber, Douglass. "C-H Functionalization to Form C-O, C-N, and C-C Bonds." In Organic Synthesis. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199764549.003.0015.

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A classic example of C-H functionalization is the familiar NBS bromination of a benzylic site. Recent updates of this approach allow for direct alkoxylation (J. Am. Chem. Soc. 2008, 130, 7824) and net amination (Organic Lett. 2008, 10, 1863). For the amination of simple aliphatic H’s, Holger F. Bettinger of Ruhr-Universität Bochum developed (Angew. Chem. Int. Ed. 2008, 47, 4744) the boryl azide 2. The insertion with 1 proceeded to give a statistical mixture of the nitrene insertion products 3 and 4. The tethered C-H functionalization devised (J. Am. Chem. Soc. 2008, 130, 7247) by Phil S. Baran
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Conference papers on the topic "Phenyl boronic acid"

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Shank, R. A., and T. R. McCartney. "The Search for a Green Alternative in Organic Acid Corrosion Inhibition." In CORROSION 2015. NACE International, 2015. https://doi.org/10.5006/c2015-05991.

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Abstract The application of acid corrosion inhibitors is an absolute necessity to prevent damage to process equipment during acid cleaning operations. The use of organic acids and mineral acids that are not HCl has expanded because of environmental concerns and issues of compatibility with alloys such as stainless or duplex steel. Inhibitors which are used to protect the metals from corrosion by organic acids often contain a number of highly toxic compounds based on amine technology such as quaternary amines, amine ethoxylates, imidazolines and polyamides as well as sulfur compounds such as th
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