Academic literature on the topic 'Solvolytic Reactions'

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Journal articles on the topic "Solvolytic Reactions"

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Kevill, Dennis N., Byoung-Chun Park, and Jin Burm Kyong. "Evidence for general base catalysis by protic solvents in a kinetic study of alcoholyses and hydrolyses of 1-(phenoxycarbonyl)pyridinium ions under both solvolytic and non-solvolytic conditions." Collection of Czechoslovak Chemical Communications 74, no. 1 (2009): 43–55. http://dx.doi.org/10.1135/cccc2008164.

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The kinetics of nucleophilic substitution reactions of 1-(phenoxycarbonyl)pyridinium ions, prepared with the essentially non-nucleophilic/non-basic fluoroborate as the counterion, have been studied using up to 1.60 M methanol in acetonitrile as solvent and under solvolytic conditions in 2,2,2-trifluoroethan-1-ol (TFE) and its mixtures with water. Under the non- solvolytic conditions, the parent and three pyridine-ring-substituted derivatives were studied. Both second-order (first-order in methanol) and third-order (second-order in methanol) kinetic contributions were observed. In the solvolysi
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Popsavin, Velimir, Mirjana Popsavin, and Dusan Miljkovic. "S-O acetyl rearrangement in 6-thio-D-glucose derivatives." Journal of the Serbian Chemical Society 83, no. 12 (2018): 1297–303. http://dx.doi.org/10.2298/jsc180811075p.

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The solvolytic reaction of 1,2-O-isopropylidene-3,6-di-O-(p-toluenesulphonyl)- ?-D-glucofuranose (2), as well as that of 6-chloro-6-deoxy-1,2-O-isopropylidene-3-O-(p-toluenesulphonyl)-?-D-glucofuranose (3), in the presence of potassium thioacetate unexpectedly gave the 6-S-acetyl-5-O-acetyl derivative 5 as the main reaction product. A possible mechanism of these transformations was postulated whereby the main role was ascribed to a neighbouring group participation process, involving hydrogen thio-orthoester formation as an intermediate. The regiospecific monosubstitution of the 6-tosyloxy grou
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Mollin, Jiří, Pavlína Staňková, and Oldřiška Staňková. "The evidence and applications of equilibria between hydroxide and alkoxide ions in aqueous-alcoholic systems." Collection of Czechoslovak Chemical Communications 55, no. 11 (1990): 2614–23. http://dx.doi.org/10.1135/cccc19902614.

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The composition of solvolysis products of butyl bromide, acetanhydride, and benzoyl chloride has been followed aqueous alcohol in alkaline and (except for butyl bromide) also in neutral regions. The results have been used as a piece of evidence of the existence of equilibrium between hydroxide and alkoxide ions and for evaluation of the possibility of calculation of the concentration ratio of hydroxide and alkoxide ions from the concentration ratios of the products as well as for evaluation of selectivities of the solvolytic reactions for mechanistic purposes.
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Creary, Xavier, Vincent P. Casingal, and Charlene E. Leahy. "Solvolytic elimination reactions. Stepwise or concerted?" Journal of the American Chemical Society 115, no. 5 (1993): 1734–38. http://dx.doi.org/10.1021/ja00058a018.

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Park, Kyoung-Ho, Chan Joo Rhu, Jin Burm Kyong, and Dennis N. Kevill. "The Effect of the ortho Nitro Group in the Solvolysis of Benzyl and Benzoyl Halides." International Journal of Molecular Sciences 20, no. 16 (2019): 4026. http://dx.doi.org/10.3390/ijms20164026.

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A kinetic study was carried out on the solvolysis of o-nitrobenzyl bromide (o-isomer, 1) and p-nitrobenzyl bromide (p-isomer, 3), and o-nitrobenzoyl chloride (o-isomer, 2) in a wide range of solvents under various temperatures. In all of the solvents without aqueous fluoroalcohol, the reactions of 1 were solvolyzed at a similar rate to those observed for 3, and the reaction rates of 2 were about ten times slower than those of the previously studied p-nitrobenzoyl chloride (p-isomer, 4). For solvolysis in aqueous fluoroalcohol, the reactivity of 2 was kinetically more reactive than 4. The l/m v
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Thibblin, Alf. "Mechanisms of solvolytic alkene-forming elimination reactions." Chemical Society Reviews 22, no. 6 (1993): 427. http://dx.doi.org/10.1039/cs9932200427.

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CREARY, X., V. P. CASINGAL, and C. E. LEAHY. "ChemInform Abstract: Solvolytic Elimination Reactions. Stepwise or Concerted?" ChemInform 24, no. 27 (2010): no. http://dx.doi.org/10.1002/chin.199327089.

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Meng, Qingshui, and Alf Thibblin. "Mechanisms of solvolytic elimination reactions of tertiary substrates: stereospecific 1,2-elimination reactions." Journal of the Chemical Society, Perkin Transactions 2, no. 7 (1999): 1397–404. http://dx.doi.org/10.1039/a901296f.

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Smith, Peter James, and Jyotsna Pradhan. "Solvolysis of 2-substituted-9-(otrho-substituted phenylmethyl)fluoren-9-yltrimethylammonium ions in various solvents. The effect of steric crowding on alkene formation." Canadian Journal of Chemistry 64, no. 6 (1986): 1060–71. http://dx.doi.org/10.1139/v86-178.

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The solvolytic reaction of several 9-(ortho-substituted phenylmethyl)fluoren-9-yltrimethylammonium salts has been investigated in several different solvents. Substitution and elimination products were found for the reactions in all the solvents studied, with the exceptions that reaction in both tert-butyl alcohol and chloroform led exclusively to the alkene product. The observed rate constants for alkene formation and the percent alkene were measured and it was found that the di-ortho compounds reacted at a faster rate but produced less alkene than the reaction of the corresponding mono-ortho
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Creary, Xavier, Holia N. Hatoum, Angela Barton, and Timothy E. Aldridge. "Solvolytic elimination reactions of tertiary .alpha.-CSNMe2-substituted systems." Journal of Organic Chemistry 57, no. 6 (1992): 1887–97. http://dx.doi.org/10.1021/jo00032a051.

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Dissertations / Theses on the topic "Solvolytic Reactions"

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Norman, S. J. "Solvent and structural effects in solvolytic reactions." Thesis, Swansea University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.638338.

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Rate Constants for the solvolysis of standard compounds have been used as a measure of solvent polarity. The Grunwald and Winstein equation utilized <i>tert</i>-butyl chloride for the Y scale. Y<SUB>X</SUB> scales for the 1- and 2-adamantyl derivatives have been established to correlate various substrates with different leaving groups. This thesis presents Y<SUB>OMs</SUB> results for binary aqueous mixtures of acetonitrile and dioxane which are classified as dipolar aprotic solvents. Y<SUB>Cl</SUB> values have also been obtained. When compounds containing one aromatic ring such as <i>p</i>-met
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Zeng, Xiaofeng. "Mechanisms for Solvolytic Elimination and Substitution Reactions Involving Short-lived Carbocation Intermediates." Doctoral thesis, Uppsala University, Organic Chemistry, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-2565.

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<p>Solvolysis reactions of a range of tertiary substrates in largely aqueous solvents were studied in such respects as β-deuterium kinetic isotope effects, linear free energy relationships and stereochemistry.</p><p>Solvolysis of the fluorene derivatives 9-methyl–9-(2´-X-2´-propyl)fluorene (<b>1-X,</b> X = Cl, Br, OOCCF<sub>3</sub>) involves a very short-lived carbocation intermediate. The fraction of alkene is increased by addition of general bases, which can be expressed by a Brφnsted parameter β = 0.07. The kinetic deuterium isotope effects vary with solvent composition in a way which is no
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Ussing, Bryson Richard. "Systematic examination of dynamically driven organic reactions via kinetic isotope effects." Texas A&M University, 2006. http://hdl.handle.net/1969.1/4877.

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Organic reactions are systematically examined experimentally and theoretically to determine the role dynamics plays in the outcome of the reaction. It is shown that trajectory studies are of vital importance in understanding reactions influenced by dynamical motion. This dissertation discusses how a combination of kinetic isotope effects, theoretical calculations, and quasiclassical dynamics trajectories aid in the understanding of the solvolysis of p-tolyldiazonium cation in water, the cycloadditions of cyclopentadiene with diphenylketene and dichloroketene, and the cycloaddition of 2- methyl
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Ebdon, D. N. "A mechanistic study of the solvolyis reactions of selected phosphoryl chlorides and p-anisoyl chloride." Thesis, Swansea University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.636761.

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Throughout the 1990's several investigators have used a mechanistic theory based upon third order kinetics to explain the rates of the reactions of several substrates in aqueous mixtures of protic (e.g. methanol) an aprotic (e.g. acetone) solvents. Such substrates investigated have included <I>p</I>-nitrobenzoyl chloride and <I>p</I>-nitrobenzenesulfonyl chloride. Reactions of these substrates in aqueous alcohols yield two products; an acid (RCO<SUB>2</SUB>H and RSO<SUB>3</SUB>H) and an ester (RCO<SUB>2</SUB>R and RSO<SUB>3</SUB>R). Measurements of the relative amounts of the products obtained
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Firmino, Thiago Diamond Reis. "Reações de solvólise em fase gasosa do cátion +SiCl3: experimento e teoria." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/46/46132/tde-20072010-201222/.

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Íons polihalogenados de Si, X3Si+ (X = F, Cl), são fragmentos facilmente gerados em espectrometria de massas por ionização eletrônica de compostos de silício polihalogenados. Estes cátions possuem um elevado caráter eletrofílico e desempenham um papel importante como intermediários em processos de corrosão auxiliados por plasma utilizados na fabricação de dispositivos em microeletrônica. Esta dissertação apresenta um estudo sobre a reatividade dos íons +SiCl3, em fase gasosa, perante uma série de substratos neutros simples como água, alcoóis, amônia, aminas e algumas bases doadoras de elétron
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Quteishat, Laith. "Contribution à la synthèse totale de la céphalotaxine." Thesis, Paris 11, 2013. http://www.theses.fr/2013PA114846/document.

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Depuis plus de 40 ans des chimistes se sont intéressés à l’extraction, à l’activité biologique et à la synthèse de l’homoharringtonine (HHT), un ester naturel de la céphalotaxine, qui est un puissant antileucémique utilisé pour le traitement des leucémies résistantes aux inhibiteurs de tyrosine kinase. Ces alcaloïdes sont extraits de Cephalotaxus, des conifères originaires du sud de la Chine à croissance extrêmement lente et menacés d’extinction. Leur synthèse est donc nécessaire. L’homoharringtonine utilisée en thérapeutique est obtenue à partir de (-)-céphalotaxine d’origine naturelle, par g
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Chamseddine, Yssam. "Sondes mecanistiques chirales et/ou regioselectivement deuteriees : application a l'etude de quelques processus de substitution nucleophile." Paris 6, 1988. http://www.theses.fr/1988PA066133.

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Lin, Yen-Shyi, and 林岩錫. "Studies on the Solvolytic Reactions of 9-fluorenyl Derivatives and Related Substrates." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/43650832084025097631.

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秦建譜. "Studies on Solvolytic Reactions of Secondary Benzylic、Benzhydryl and Highly Hindered Tertiary Benzylic Substrates." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/41899122152091917139.

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Chang, Chih-Wei, and 張志偉. "Studies on the Solvolysis Reactions of Highly Hindered Benzhydryl and 9-Fluorenyl Substrates." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/12571597271252574433.

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碩士<br>國立臺灣大學<br>化學系<br>86<br>In chapter 1, we use 2-naphthyl-2-adamantyl p-nitrobenzoate to measure the solvolysis rate constant and to show the necessary that develop the YxBnX scales. In chapter 2 and chapter 3,we use Grundwald-Winstein equation correlation analysis ortho-methyl substituted of benzhydryl and 9-aryl-9-fluorenyl substrates. For benzhydryl substrates,we can know the different effect by means of solvolysis when the increase of ortho-methyl group. The log k value of 9-
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Book chapters on the topic "Solvolytic Reactions"

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Zingaro, R. A. "O-Sb Bonds by Solvolytic Reactions." In Inorganic Reactions and Methods. John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145197.ch114.

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Gallego, Mar Gómez, and Miguel A. Sierra. "Level 3 - Case 35 Solvolysis of Vinyl Iodonium Salts." In Organic Reaction Mechanisms. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-642-18788-9_35.

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Gallego, Mar Gómez, and Miguel A. Sierra. "Level 3 - Case 40 Solvolysis of 8-Deltacyclyl Brosylates." In Organic Reaction Mechanisms. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-642-18788-9_40.

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Gallego, Mar Gómez, and Miguel A. Sierra. "Level 1 — Case 9 Solvolysis of Electron-Deficient Norbornyl Triflates." In Organic Reaction Mechanisms. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-642-18788-9_9.

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Zingaro, R. A. "From Solvolysis of the As-N or the As-P Bond." In Inorganic Reactions and Methods. John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145197.ch105.

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Okuyama, Tadashi, and Howard Maskill. "Rearrangement Reactions involving Polar Molecules and Ions." In Organic Chemistry. Oxford University Press, 2013. http://dx.doi.org/10.1093/hesc/9780199693276.003.0022.

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This chapter focuses on the [1,2] sigmatropic rearrangements. It shows how 1,2-shifts in carbenium ion intermediates in solvolytic reactions, for example, can be considered as [1,2] sigmatropic rearrangements, and (consequently) related to concerted sigmatropic rearrangements of nonpolar compounds. The MO description of these simple 1,2-shifts in carbenium ions can be extended to describe the rearrangement steps in more complicated multistep heterolytic reactions. The chapter also details the catalysed rearrangement of carbonyl compounds involving 1,2-shifts, then investigates the 1,2-shifts f
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Henderson, Richard A. "Catalysed substitution reactions." In The Mechanisms of Reactions at Transition Metal Sites. Oxford University Press, 1993. http://dx.doi.org/10.1093/hesc/9780198557463.003.0006.

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This chapter shows how the rates of substitution reactions at a variety of metal sites can be accelerated by base, acid, or electron transfer. It mentions Werner-type complexes of cobalt(III), chromium(III), ruthenium(III), rhodium (III), and iridium(III), which are the most extensively studied system showing base catalysis. What generated interest in these reactions was the apparent anomaly in the reaction of hydroxide that appears to be an exception to the general rule that the rate of substitution at cobalt(III) complexes show the characteristics of a dissociative mechanism. In addition, re
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Richard, John P., Tina L. Amyes, Maria M. Toteva, and Yutaka Tsuji. "Dynamics for the reactions of ion pair intermediates of solvolysis." In Advances in Physical Organic Chemistry. Elsevier, 2004. http://dx.doi.org/10.1016/s0065-3160(04)39001-5.

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Jolivet, Jean-Pierre. "Water and Metal Cations in Solution." In Metal Oxide Nanostructures Chemistry. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780190928117.003.0005.

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Water has an exceptional ability to dissolve minerals. It is safe and chemically stable, and it remains liquid over a wide temperature range. Thus, it is the best solvent and reaction medium for both laboratory and industrial purposes. Water is able to dissolve ionic and ionocovalent solids because of the high polarity of the molecule (dipole moment μ = 1.84 Debye) as well as the high dielectric constant of the liquid (ε = 78.5 at 25°C). This high polarity allows water to exhibit a strong solvating power: that is, the ability to fix onto ions as a result of electrical dipolar interactions. Wat
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Lambert, Tristan H. "Functional Group Interconversion." In Organic Synthesis. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780190200794.003.0004.

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Chaozhong Li of the Shanghai Institute of Organic Chemistry reported (J. Am. Chem. Soc. 2012, 134, 10401) the silver nitrate catalyzed decarboxylative fluorination of carboxylic acids, which shows interesting chemoselectivity in substrates such as 1. A related decarboxylative chlorination was also reported by Li (J. Am. Chem. Soc. 2012, 134, 4258). Masahito Ochiai at the University of Tokushima has developed (Chem. Commun. 2012, 48, 982) an iodobenzene-catalyzed Hofmann rearrangement (e.g., 3 to 4) that proceeds via hypervalent iodine intermediates. The dehydrating agent T3P (propylphosphonic
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Conference papers on the topic "Solvolytic Reactions"

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Singh, Anil Kr. "Kinetics Investigation of Solvent Polarity on Reaction Rate for Solvolysis of Ethyl Caprylate Ester in Binary Solvent System." In 2021 10th International Conference on System Modeling & Advancement in Research Trends (SMART). IEEE, 2021. http://dx.doi.org/10.1109/smart52563.2021.9676306.

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Reports on the topic "Solvolytic Reactions"

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Braun, Andre M. Enhanced Oxidation and Solvolysis Reactions in Chemically Inert Microheterogeneous Systems. Defense Technical Information Center, 1986. http://dx.doi.org/10.21236/ada191248.

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Braun, Andre M. Enhanced Oxidation and Solvolysis Reactions in Chemically Inert Microheterogeneous Systems. Defense Technical Information Center, 1985. http://dx.doi.org/10.21236/ada191250.

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Braun, Andre M. Enhanced Oxidation and Solvolysis Reactions in Chemically Inert Microheterogeneous Systems. Defense Technical Information Center, 1987. http://dx.doi.org/10.21236/ada191251.

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Braun, Andre M. Enhanced Oxidation and Solvolysis Reactions in Chemically Inert Microheterogeneous Systems. Defense Technical Information Center, 1987. http://dx.doi.org/10.21236/ada191252.

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