Relevant bibliographies by topics / Ethynyl group

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Ethynyl group'

Author: Grafiati
Published: 5 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "Ethynyl group"

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Oburn, Shalisa M., and Eric Bosch. "Unexpected beauty and diversity in the structures of three homologous 4,5-dialkoxy-1-ethynyl-2-nitrobenzenes: the subtle interplay between intermolecular C—H...O hydrogen bonds and alkyl chain length." Acta Crystallographica Section C Structural Chemistry 73, no. 10 (2017): 814–19. http://dx.doi.org/10.1107/s2053229617012761.

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The synthesis, 1H and 13C NMR spectra, and X-ray structures are described for three dialkoxy ethynylnitrobenzenes that differ only in the length of the alkoxy chain, namely 1-ethynyl-2-nitro-4,5-dipropoxybenzene, C14H17NO4, 1,2-dibutoxy-4-ethynyl-5-nitrobenzene, C16H21NO4, and 1-ethynyl-2-nitro-4,5-dipentoxybenzene, C18H25NO4. Despite the subtle changes in molecular structure, the crystal structures of the three compounds display great diversity. Thus, 1-ethynyl-2-nitro-4,5-dipropoxybenzene crystallizes in the trigonal crystal system in the space group R{\overline 3}, with Z = 18, 1,2-dibutoxy
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Paul, Ratan Kumar, Md Faruak Ahmad, Mohammad Mizanur Rahman Khan, and Muhammad Younus. "Synthesis and Antibacterial Activities of Sugar-containing Platinum Ethynyl Complexes." Journal of Bangladesh Academy of Sciences 40, no. 1 (2016): 65–77. http://dx.doi.org/10.3329/jbas.v40i1.28326.

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New sugar-containing aryl ethynyl ligand [N-(4-trimethylsilylethynylphenyl)-?-D-glucopyranosylamine] 2 has been prepared by the reaction of [N-(4-iodophenyl)-?-D-glucopyranosylamine] 1 with trimethysilylacetylene in the presence of Pd(OAc)2/CuI catalyst, in iPr2NH and DMF solvent mixture. The trimethylsilyl group of compound 2 was deprotected using K2CO3 in methanol to form terminal ethynylene ligand [N-(?-D-glucopyranosyl)aniline-4-ethyne] 3. Novel platinum mono-ethynyl complex trans-[(P(Bu)3)2PtCl(C?C-4-C6H4-NH-D-glocose)] 4 and bis-ethynyl complex trans-[(P(Bu)3)2PtCl(C?C-4-C6H4-NH-D-glocos
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Nagy, Fehér, Dargó, et al. "Comparison of Cinchona Catalysts Containing Ethyl or Vinyl or Ethynyl Group at Their Quinuclidine Ring." Materials 12, no. 18 (2019): 3034. http://dx.doi.org/10.3390/ma12183034.

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Numerous cinchona organocatalysts with different substituents at their quinuclidine unit have been described and tested, but the effect of those saturation has not been examined before. This work presents the synthesis of four widely used cinchona-based organocatalyst classes (hydroxy, amino, squaramide, and thiourea) with different saturation on the quinuclidine unit (ethyl, vinyl, ethynyl) started from quinine, the most easily available cinchona derivative. Big differences were found in basicity of the quinuclidine unit by measuring the pKa values of twelve catalysts in six solvents. The eff
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Harris, Benjamin L., та Jonathan M. White. "Application of the Variable Oxygen Probe to Determine the π-Electron Donor Ability of the Alkyne Group". Australian Journal of Chemistry 67, № 12 (2014): 1866. http://dx.doi.org/10.1071/ch14395.

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Eight ester and ether derivatives of propargyl alcohol with varying electron demand were structurally characterised using low temperature X-ray crystallography, these were combined with seven derivatives obtained from the Cambridge Structural Database. Variable oxygen probe analysis of these derivatives provided evidence that the ethynyl substituent is a relatively weak π-electron donor, and is a slightly less effective donor than the C–C bond of an ethyl substituent.
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Lee, Eun-Bee, Hyunil Ryu, Insu Lee, et al. "Synthetic anion transporters that bear a terminal ethynyl group." Chemical Communications 51, no. 45 (2015): 9339–42. http://dx.doi.org/10.1039/c5cc01903f.

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Úr, Györgyi, Tamás Kálai, Mária Balog, Balázs Bognár, Gergely Gulyás-Fekete, and Kálmán Hideg. "Synthesis of New Pyrroline Nitroxides with Ethynyl Functional Group." Synthetic Communications 45, no. 18 (2015): 2122–29. http://dx.doi.org/10.1080/00397911.2015.1066391.

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Hsu, Chih-Hung, Rong Hu, Ginger E. Dutschman, et al. "Comparison of the Phosphorylation of 4′-Ethynyl 2′,3′-Dihydro-3′-Deoxythymidine with That of Other Anti-Human Immunodeficiency Virus Thymidine Analogs." Antimicrobial Agents and Chemotherapy 51, no. 5 (2007): 1687–93. http://dx.doi.org/10.1128/aac.01432-06.

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ABSTRACT Thymidine analogs, including 3′-azido-3′-deoxythymidine (AZT) and 2′,3′-dideoxy-3′-deoxythymidine (D4T), are important antiretroviral agents. To exert antiretroviral activity, these analogs undergo a stepwise phosphorylation intracellularly to the active triphosphate metabolites. We previously reported that 4′-substituted D4T with an ethynyl group (i.e., 4′-ethynyl D4T) increased the anti-human immunodeficiency virus (HIV) activity and was active against multidrug-resistant HIV strains. 4′-Ethynyl D4T is a better substrate for phosphorylation by human thymidine kinase 1 than D4T is. I
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Cha, Won-Young, Juwon Oh, Masaaki Kitano, Atsuhiro Osuka, and Dongho Kim. "meso-Arylethynyl subporphyrins as efficient and tunable photo-induced electron transfer units." Journal of Porphyrins and Phthalocyanines 21, no. 02 (2017): 152–57. http://dx.doi.org/10.1142/s1088424617500249.

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Excited state dynamics of meso-arylethynyl-substituted subporphyrins can be tuned by 4-substituent at the arylethynyl group and solvent polarity. In polar acetonitrile, phenylethynyl subporphyrin 1 exhibited enhanced fluorescence, while (4-dimethylaminophenyl)ethynyl subporphyrin 2 showed red-shifted fluorescence from its charge-separated state and (4-nitrophenyl)ethynyl subporphyrin 3 displayed efficient fluorescence quenching due to charge separation.
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Batsyts, Sviatoslav, Francisco J. Ramírez, Juan Casado, Jan C. Namyslo, and Andreas Schmidt. "Chemistry and spectroscopy of cross-conjugated and pseudo-cross-conjugated quinolinium-ethynyl-benzoate mesomeric betaines." Zeitschrift für Naturforschung B 73, no. 7 (2018): 481–91. http://dx.doi.org/10.1515/znb-2018-0020.

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AbstractThe three isomers 1-methylquinolinium-2-, 3-, and 4-ethynyl(phenyl-4-carboxylates) belong to two distinct types of heterocyclic mesomeric betaines. The quinolinium substituted in position 3 is a cross-conjugated mesomeric betaine (CCMB), whereas the quinolinium derivatives substituted in positions 2 and 4 are members of the class of pseudo-cross-conjugated mesomeric betaines (PCCMBs). While the charges are strictly separated within the common π-electron system of the CCMB according to the canonical formulae, the charges are effectively but not exclusively delocalized in the PCCMBs beca
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Zhu, Ren-Yi, Long Chen, Xiao-Si Hu, Feng Zhou, and Jian Zhou. "Enantioselective synthesis of P-chiral tertiary phosphine oxides with an ethynyl group via Cu(i)-catalyzed azide–alkyne cycloaddition." Chemical Science 11, no. 1 (2020): 97–106. http://dx.doi.org/10.1039/c9sc04938j.

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Dissertations / Theses on the topic "Ethynyl group"

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Rabinowitz, Daniel Joshua. "Electrochemical Studies of Substituted Anthraquinones." Digital Archive @ GSU, 2008. http://digitalarchive.gsu.edu/chemistry_theses/15.

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Electrochemical potentials of a series of anthraquinone derivatives were studied in both aqueous solution and acetonitrile. The long term goal of this work was to find derivatives which could be reduced easily for studies of photoinduced electron transfer in DNA. Our immediate goal was to find the substitution group that gave the least negative redox potential value. Of all derivatives studied, the anthraquinone imides as a class had the least negative redox potentials, in the range of -0.600 to -0.550 V vs. SCE. One of the anthraquinones studied, one derivative (deoxyadenosine conjugated
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Bukšnaitienė, Rita. "Study on cyclization reactions of heterocyclic compounds bearing ethynyl and formyl groups in close proximity to each other." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2012. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20121119_130637-83646.

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The main aims of this investigation were to investigate cyclization reactions of electron–deficient 6–alkynylpyrimidine–5–carbaldehydes and 2–alkynylquinoline–3–carbaldehydes, and electron–rich 2–alkynylindole–3–carbaldehydes and 2–alkynylthiophene–3–carbaldehydes with N–, S–. O–, C– and P–nucleophiles. It was found, that 6–arylethinylpyrimidine–5–carbaldehydes under the treatment with tert–butylamine underwent thermal or microwave–induced cyclization reaction to form pyrido[4,3–d]pyrimidines. A novel and fast synthetic method for preparation of 1,2,3–trisubstituted 1,2–dihydrobenzo[b][1,6]na
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Yang, Florent. "Electrochemical modification of Si surfaces by methyl groups (CH 3, CD 3), ethynyl derivatives, pyrrole and thiophene." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2009. http://dx.doi.org/10.18452/16034.

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Silizium (Si) wird für eine breite Palette von Anwendungen wie z.B. in Solarzellen, Mikroelektronik, Biochips und so weiter eingesetzt. In dieser Arbeit wurden neue Hybridsysteme aus Si und organischen Molekülen, bezüglich der Oberflächenpassivierung des Halbleiters und der resultierenden elektronischen Eigenschaften untersucht. Insbesondere wurden Methyl-Gruppen (CH3 und CD3), Ethynyl-Derivate (H−C≡C-, CH3−C≡C-, und C6H5−C≡C-), sowie Pyrrol und Thiophen aus Grignardlösungen untersucht. Bezüglich Stabilität und Defektkonzentration konnte gezeigt werden, dass organisch modifizierte Si-Oberfläch
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Ferroud, Clotilde. "Étude de la réaction de Diels-Adler intra et intermoléculaire sous haute pression : application à la synthèse stéréosélective d'alcaloïdes de l'indole du groupe des yohimbanes." Paris 6, 1986. http://www.theses.fr/1986PA066023.

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Le schéma de synthèse repose sur une unité bicyclique, précurseur direct des unités (d,e) du squelette pentacyclique. Cet intermédiaire est basé sur une réaction de Diels-Alder sous haute pression, utilisant la cycloaddition de diènes de structure donneur-accepteur 1,4 avec une lactone insaturée comme diénophile. La synthèse du système pentacyclique est exposée à partir de cet intermédiaire clé.
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Pichelin-Poitevin, Dominique. "Marquage differentiel de proteines membranaires par des inhibiteurs de thiols en presence de saccharose et de divers analogues." Poitiers, 1987. http://www.theses.fr/1987POIT2260.

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Yang, Florent [Verfasser]. "Electrochemical modification of Si surfaces by methyl groups (CH3, CD3), ethynyl derivatives, pyrrole and thiophene / von Florent Yang." 2008. http://d-nb.info/1000370526/34.

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Cho, Chia-Chin, and 卓家慶. "Fluorine Substitution Effects on the Reactions of Ethyl Groups on Cu(100):alpha-Elimination vs. beta-Elimination." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/92248117403053069651.

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碩士<br>國立中山大學<br>化學系研究所<br>93<br>表面化學領域中，研究過渡金屬單晶表面上吸附態乙基(C2H5)之反應，已有相當多的報導。其共識為β-H消去(β-elimination)形成乙烯(C2H4)脫附是主要反應路徑。本研究則以不同程度氟取代的乙基(ethyl)：CF3CF2-、CHF2CF2-、CF3CHF-、CF3CH2-及CH3CH2-作為對照，吸附在Cu(100)單晶面上以程溫反應/脫附(TPR/D)實驗探討反應機構，結果顯示前兩種樣品先進行α-F消去形成Ethylidene表面中間體，前者再自身偶合於350K生成CF3-CF=CF-CF3，而後者偶合於300K生成CHF2-CF=CF-CHF2。後三種樣品則發生β消去直接產生CHF=CF2(310K)、CH2=CF2(225K)和CH2=CH2(250K)。由於要進行較低溫之β消去反應時，過渡態呈平面及Eclipsed構型(如右圖)。藉由此看出前兩種樣品之β路徑過渡態是具有兩對F-F互斥作用，這使得過渡態較不穩定，能障昇高導致反應路徑轉往相對能障可能較低之α消去。後三種樣品行β消去之過渡態因有較少F-F排斥，所以行β消去反應。使用模擬計算的結果也顯示，當和金屬鍵結的α碳上具氟取代時除造成的鍵能變強，亦會造成在過渡態在進行金屬-碳鍵斷裂時能障升高而開啟相對能障可能較低之α消去通道。研究結果所反映乙基上氟取
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Books on the topic "Ethynyl group"

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Nwokogu, Godson C. Final report on the synthesis of monomers with pendent ethynyl group for modified high performance thermoplastics ... September 1988 to August 31, 1994. National Aeronautics and Space Administration, 1994.

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2

Nwokogu, Godson C. Report on the synthesis of monomers with pendent ethynyl group for modified high performance thermoplastics: NASA grant NAG-1-905 for the period September 1988 to August 31, 1992. National Aeronautics and Space Administration, 1992.

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3

Omari, Ansong, Antoine Miguel D, and United States. National Aeronautics and Space Administration., eds. Report on the synthesis of monomers with pendent ethynyl group for modified high performance thermoplastics: NASA grant NAG-1-905 for the period September 1988 to August 31, 1992. National Aeronautics and Space Administration, 1992.

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B, Tabakoff, and Hoffman P. L, eds. Biological aspects of alcoholism. Hogrefe & Huber, 1995.

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5

Polyimides with pendent ethynyl groups. National Aeronautics and Space Administration, Langley Research Center, 1992.

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McIntosh, Lurita. Ethyl silicate as an alternative binder for grout and mortar for use with American sandstones. 2007.

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Biological Aspects of Alcoholism: Implications for Prevention, Treatment, and Policy. Hogrefe & Huber Publishing, 1995.

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Psychological Effects of Alcohol: An Experimental Investigation of the Effects of Moderate Doses of Ethyl Alcohol on a Related Group of Neuro-Muscular Processes in Man. Creative Media Partners, LLC, 2023.

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Psychological Effects of Alcohol: An Experimental Investigation of the Effects of Moderate Doses of Ethyl Alcohol on a Related Group of Neuro-Muscular Processes in Man. Creative Media Partners, LLC, 2023.

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Book chapters on the topic "Ethynyl group"

1

Salaün, Jacques R. Y. "Synthesis and synthetic applications of 1-donor substituted cyclopropanes with ethynyl, vinyl and carbonyl groups." In Topics in Current Chemistry. Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/bfb0111228.

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2

Hiyama, T., and A. Mori. "Reactions of Ethynyl(trimethyl)silane or Bis(trimethysilyl)ethyne." In Compounds of Groups 15 (As, Sb, Bi) and Silicon Compounds. Georg Thieme Verlag KG, 2002. http://dx.doi.org/10.1055/sos-sd-004-00695.

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Taber, Douglass F. "The Baran Synthesis of Ingenol." In Organic Synthesis. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190646165.003.0089.

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The early promise for the biological activity of the derivatives of ingenol 3 has been borne out by the clinical efficacy of the derived angelate, recently approved by the US Food and Drug Administration for the treatment of actinic keratosis. Phil S. Baran of Scripps La Jolla envisioned (Science 2013, 341, 878) a route to 3 based on a rearrange­ment of 2, available by the Pauson–Khand cyclization of the allenyl alkyne 1. One of the partners for the preparation of 1 was available following the Sugai (Synlett 1997, 1297) procedure, by the Claisen rearrangement of triethyl orthopro­pionate 5 wit
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Hiyama, T., and A. Mori. "The Sonogashira–Hagihara Reaction of Ethynyl(trimethyl)silane." In Compounds of Groups 15 (As, Sb, Bi) and Silicon Compounds. Georg Thieme Verlag KG, 2002. http://dx.doi.org/10.1055/sos-sd-004-00696.

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Lambert, Tristan H. "Functional Group Interconversion." In Organic Synthesis. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780190200794.003.0006.

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David Milstein at the Weizmann Institute of Science reported (Angew. Chem. Int. Ed. 2013, 52, 6269) the unusual deamination of amine 1 to alcohol 3 catalyzed by ruthenium complex 2. In the reverse sense, Qing Xu at Wenzhou University found (Adv. Synth. Cat. 2013, 355, 73) that the conversion of benzyl alcohol (4) to sulfonamide 5 was catalyzed by benzaldehyde and catalytic potassium carbonate. Gold(I) catalysis was utilized (Chem. Commun. 2013, 49, 4262) by Ai-Lan Lee at Heriot-Watt University for the direct etherification of allylic alcohol 6 with isopropanol to produce 7. Tobias Ritter at Ha
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Lambert, Tristan H. "Functional Group Protection." In Organic Synthesis. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780190200794.003.0012.

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An efficient method for allylation of a sterically hindered alcohol in the presence of base-sensitive functionality (cf. 1 to 2) has been developed (Tetrahedron Lett. 2012, 53, 1319) by Richard B. Silverman at Northwestern University. Mark S. Taylor at the University of Toronto found (J. Am. Chem. Soc. 2012, 134, 8260) that borinic acid 4 catalyzed the monofunctionalization of diols and carbohydrates such as 3. The selective functionalization of unprotected peptides can be challenging, but Man-Kin Wong at Hong Kong Polytechnic University and Chi-Ming Che at the University of Hong Kong have sho
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Aitken, R. A., and K. M. Aitken. "Addition of a Nitro Group and an Ethyl Sulfate Group to an Alkene." In Nitro, Nitroso, Azo, Azoxy, and Diazonium Compounds, Azides, Triazenes, and Tetrazenes. Georg Thieme Verlag KG, 2010. http://dx.doi.org/10.1055/sos-sd-041-00197.

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Ferner, R. E., Elizabeth Norman, and M. D. Rawlins. "Ethanol." In Forensic Pharmacology. Oxford University PressOxford, 1995. http://dx.doi.org/10.1093/oso/9780198548263.003.0008.

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Abstract Alcohols are alkyl organic compounds which contain an —OH group. Ethanol (ethyl alcohol), C2H5OH, is the chemical name for the alcohol derived from the fermentation of glucose (grape-sugar) and other sugars and starches by the action of yeasts. Since this is economically and socially the most important alcohol, the term ‘alcohol’ often designates ethanol.
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Jones, John. "α-Carboxy protection." In Amino Acid and Peptide Synthesis. Oxford University Press, 2002. http://dx.doi.org/10.1093/hesc/9780199257386.003.0004.

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This chapter describes the amino groups of amino acids and peptides as more nucleophilic than their carbonyl groups when it comes to acylation. It explains how amino acids and peptides with unprotected carboxy groups can be used for peptide bond formation if separately preactivated carboxy components are employed. It also cites esterification as the usual means of carboxy protections, wherein the parent carbolic acid can be regenerated from the esters by acyl-oxygen or alkyl-oxygen fission. The chapter considers the fundamental alkyl-oxygen cleavage chemistry as qualitatively the same as that
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Marwaha, Lovleen. "Retinue Behaviour of Worker Honey Bees." In The Polyandrous Queen Honey Bee: Biology and Apiculture. BENTHAM SCIENCE PUBLISHERS, 2023. http://dx.doi.org/10.2174/9789815079128112010009.

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Different queen pheromones attract colonial workers who respond by forming a surrounding group around the stationary queen. This specific behaviour is considered retinue behaviour. Workers lick, groom, and antennate the queen to get pheromones which influence workers' behaviour, physiology, development, hormones, reproduction, etc. Various pheromonal glands like the Mandibular gland components, the Tergal gland, Dufour's gland, etc., influence the retinue. Primary pheromones which influence the retinue process include (E)-9-oxo-2-decanoic acid(9-ODA), methyl 4-hydroxybenzoate(HOB), (R)-and (S)
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Conference papers on the topic "Ethynyl group"

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Matveeva, Valentina, Boris Tikhonov, Daniil Lisichkin, Ajay Desai, and J. C. S. Santos. "STUDY OF PROPERTIES OF GLUCOSE OXIDASE IMMOBILIZED ON MODIFIED WITH CHITOSAN AND SODIUM TRIPOLYPHOSPHATE MAGNETITE." In SGEM International Multidisciplinary Scientific GeoConference 24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/6.1/s25.29.

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A new biocatalyst based on glucose oxidase immobilized on Fe3O4 magnetite nanoparticles modified with chitosan and sodium tripolyphosphate was synthesized. Magnetite nanoparticles were obtained by mixing solutions of FeCl2 and FeCl3 with ammonia while heating to a temperature of 65 ?C. To stabilize the nanoparticles and ensure the presence of amino groups on their surface, chitosan and sodium tripolyphosphate were sequentially deposited on magnetite. Immobilization of glucose oxidase on the support was carried out after preliminary activation of the carboxyl groups of the enzyme by 1-ethyl-3-(
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Silitonga, Hendrika Andriana, Gontar Alamsyah Siregar, Rosita Juwita Sembiring, and Marline Nainggolan. "Effect of Chayote (Sechium Edule Jacq. Swartz) Extract on Level of Interleukin-8 in Wistar Rats with Aspirin-Induced Gastritis." In The 7th International Conference on Public Health 2020. Masters Program in Public Health, Universitas Sebelas Maret, 2020. http://dx.doi.org/10.26911/the7thicph.05.35.

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ABSTRACT Background: Recent studies showed that Interleukin-8 (IL-8), activated cytokine immune response which plays an important role in the development of acute and chronic gastritis. Harmless anti-inflammatory therapeutic alternatives have been proposed, for example, the consumption of Sechium Edule Jacq. Swartz (chayote). Antioxidant (flavonoid) and cell regeneration (alkaloid) agents were found in chayote. This study aimed to determine the effect of chayote Sechium Edule Jacq. Swartz extracts on the level of IL-8 in Wistar rats with aspirin- induced gastritis. Subjects and Method: This wa
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Natansohn, A., P. Rochon, J. Mao, and S. Xie. "Optical Storage in Polymers Containing Azo Groups without Electron-Donor - Electron Acceptor Substituents: Poly[4-(2-methacryloyloxy)ethyl-azobenzene]." In Organic Thin Films for Photonic Applications. Optica Publishing Group, 1993. http://dx.doi.org/10.1364/otfa.1993.wd.25.

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Some degree of supramolecular organization can be induced in amorphous polymers containing azobenzene groups by means of polarized light. This phenomenon has been known for about a decade and the relevant literature has been reviewed in one of our recent publications1. This induced preferred orientation of the azobenzene groups can be monitored by a significant change in the refractive index of the polymer film and can thus be usea as an information storage mechanism. Circularly polarized light restores the natural disorder of the azobenzene orientations, enabling erasure of the stored informa
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Szaboova, Dana, Eliska Gburova Stubnova, and Ivona Kautmanova. "CHALLENGES ASSOCIATED WITH BARCODING METHOD." In 22nd SGEM International Multidisciplinary Scientific GeoConference 2022. STEF92 Technology, 2022. http://dx.doi.org/10.5593/sgem2022/5.1/s20.012.

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The DNA barcoding project provides a very quick and easy way to identify different types of organisms based on their DNA. The main objective of this study is to obtain the sequences of different species of fungi, plants and animals to map the biodiversity of Slovakia. This project also represents a new use for collections stored in natural history museums around the world. This paper shows in particular a laboratory view of the DNA barcoding project, such as the practical application of the methodology for different groups of organisms, the possibilities of using different genes and emphasizes
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Yanagisawa, M., M. Kunimoto, and T. Homma. "Depth Profile Analysis of Chemical Structures Around Lubricant/Overcoat Interface Using Plasmonic Sensor." In ASME 2016 Conference on Information Storage and Processing Systems. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/isps2016-9514.

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A chemical depth profile in lubricant films, carbon films, and their interfaces is an informative parameter for hard disk media because molecular features of lubricants bonded to a surface of carbon overcoats (COCs), which usually consist of a nitrogen doped layer, are important to achieve high tribological performance. However, it was difficult to analyze their interfaces with high depth resolution because thickness of lubricant films and COC films are so thin, i.e. 1.5nm and 2nm, respectively. We have developed new method using plasmonic sensors, which has measurement capability for chemical
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Plaza, P., N. Dai Hung, M. M. Martin, Y. H. Meyer, and W. Rettig. "Investigation of Fast Relaxation Processes in Non-fluorescent Rhodamine Dyes." In International Conference on Ultrafast Phenomena. Optica Publishing Group, 1992. http://dx.doi.org/10.1364/up.1992.fc21.

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Non radiative relaxation of various N-substituted ethyl-ester-Rhodamine dyes (scheme A) was explained by assuming an intramolecular rotational motion towards a low lying non emissive TICT-like state with charge localization [1]. Stationary and time-resolved fluorescence experiments evidenced that fluorescence quenching in those Rhodamines is linked with the rotation of the amino group. On the other hand, if the o-carboxyphenyl group is exchanged for a p-dimethylamino electron donor group (scheme B), the fluorescence quantum yield is very low in neutral ethanol but increases by more than two or
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Nedeljković, Nikola V., Vladimir D. Dobričić, Marina Ž. Mijajlović, et al. "„IN SILICO“ PREDICTION OF PHARMACOKINETIC PROPERTIES AND DRUGLIKENESS OF NOVEL THIOUREA DERIVATIVES OF NAPROXEN." In 1st INTERNATIONAL Conference on Chemo and BioInformatics. Institute for Information Technologies, University of Kragujevac, 2021. http://dx.doi.org/10.46793/iccbi21.371n.

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Masking the carboxyl group of naproxen with other functional groups may be a promising strategy to decrease its gastrointestinal toxicity. Thiourea moiety has been described as an important pharmacophore in a variety of pharmacologically active compounds, including anti-inflammatory, antiviral, anticancer, hypoglycemic and antimicrobial agents. Our research group has previously designed twenty novel thiourea derivatives of naproxen, containing amino acids (glycine, L-alanine, β-alanine, L-valine and L-phenylalanine – compounds 1,2,3,4 and 5, respectively), their methyl (6–10) and ethyl esters
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Utkin, A. V. "Tension of Ethyl Alcohol and Hexadecane by Shock Waves." In SHOCK COMPRESSION OF CONDENSED MATTER - 2005: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter. AIP, 2006. http://dx.doi.org/10.1063/1.2263466.

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Harris, William, and Irum Zahara. "Omega-3 and cardiovascular disease." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/rrxh5251.

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Despite the fact that the “omega-3 lowers risk for CVD” story is now 50 years old, controversies remain regarding the short and long-term utility of omega-3 supplementation to reduce risk for CVD. The earlier studies (published roughly before 2007) were generally favorable, however a spate of studies published since then were not nearly as clear. The one stand-out in the latter set was REDUCE-IT, which used 4 g/d of EPA ethyl esters (instead of EPA+DHA ethyl esters). In this study, the treated subjects experienced about 25% fewer CVD events than the placebo group. This resulted in FDA appr
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Hevroni, Refael, Natan Karaev, Eli Gudinetsky, Vitaly Paris, and Arnon Yosef-Hai. "Studying the dynamic properties of ethyl-cyanoacrylate adhesive up to 6.5 GPa." In SHOCK COMPRESSION OF CONDENSED MATTER - 2019: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter. AIP Publishing, 2020. http://dx.doi.org/10.1063/12.0001014.

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Reports on the topic "Ethynyl group"

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Yibchok-anun, Sirintorn, and Nattaya Ngamrojanavanich. Structure-activity relationships of trans-cinnamic acid derivatives on inhibitions of alpha-glucosidase. Chulalongkorn University, 2004. https://doi.org/10.58837/chula.res.2004.86.

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Trans-Cinnamic acid and its derivatives were investigated for the a-glucosidase inhibitiory activity. 4-methoxy-trans-cinnamic acid and 4-methoxy-trans-cinnamic acid ethyl ester showed the highest potent inhibitory activity among those of trans-cinnamic acid derivatives. The presence of substituents at 4-position in trans-cinnamic acid derivatives. The presence of substituents at 4-position in trans-cinnamic acid altered the a-glucosidase inhibitory activity. Increasing of bulkiness and the chain length of 4-alkoxy substituents as well as the increasing of the electron withdrawing group have b
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Swasdison, Somporn, Jariya Boonjawat, and Manit Sonsuk. Grafting of natural rubber copolymer with ethyl methacrylate by gamma irradiation for using as soft lining denture base material. Chulalongkorn University, 2006. https://doi.org/10.58837/chula.res.2006.13.

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Recently, natural rubber has been used in several medical products. The purpose of this study was to develop a soft lining material from natural latex which had been improved its physical, mechanical and biological properties. Initially, natural latex was vulcanized by gamma irradiation. The vulcanized latex was then grafted with ethyl methacrylate using gamma irradiation also. The grafted vulcanized rubber, so-called graft copolymer, was evaluated for its physical and mechanical properties as well as the cellular biocompatibility. Coe Supersoft, the commercial soft lining material, was used a
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Droby, Samir, Joseph W. Eckert, Shulamit Manulis, and Rajesh K. Mehra. Ecology, Population Dynamics and Genetic Diversity of Epiphytic Yeast Antagonists of Postharvest Diseases of Fruits. United States Department of Agriculture, 1994. http://dx.doi.org/10.32747/1994.7568777.bard.

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One of the emerging technologies is the use of microbial agents for the control of postharvest diseases of fruits and vegetables. A number of antagonistic microorganisms have been discovered which have the potential to effectively control postharvest diseases. Some of this technology has been patented and commercial products such as AspireTM (Ecogen Corporatin, Langhorne, PA, USA), Biosave 10TM and Biosave 11TM (Ecoscience Inc., Worchester, MA, USA) have been registered for commercial use. The principal investigator of this project was involved in developing the yeast-based biofungicide-Aspire
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