Academic literature on the topic 'Solvolytic Studies'

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Journal articles on the topic "Solvolytic Studies"

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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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K., Ranganayakulu, and Y. S. Murthy N. "Solvolytic studies in cycloalkyl systems." Journal of Indian Chemical Society Vol. 88, Feb 2011 (2011): 307–13. https://doi.org/10.5281/zenodo.5773579.

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Professor (Retd.), Department of Chemistry, National Institute of Technology, Warangal-506 004, Andhra Pradesh, India Department of Chemistry, Malia Reddy Engineering College, Secunderabad-500 014, Andhra Pradesh, India <em>E-mail</em> : nysrim@yahoo.co.in <em>Manuscript received 14 May 2009, accepted 15 September 2009</em> The angular dependence of the C-H/C-D bond for a stabilization of the developing carbonium ion in the transition state of the solvolysis reaction of cycloalkyl halides has been investigated. This has been achieved by studying the rate of solvolysis of eight cyclic &beta;-de
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Kevill, Dennis N., and Zoon Ha Ryu. "Rate and Product Studies in the Solvolyses of Two Arenesulfonic Anhydrides." Journal of Chemical Research 2007, no. 6 (2007): 365–69. http://dx.doi.org/10.3184/030823407x218084.

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The specific rates of solvolysis of benzenesulfonic anhydride (1) and p-toluenesulfonic anhydride (2) have been measured conductometrically at −10°C in 34 solvents for 1 and 33 solvents for 2. Studies at higher temperatures have allowed extrapolated values in additional solvents to be calculated. All of the values, for 35 solvents for 1 and for 37 solvents for 2, have been used in an extended Grunwald–Winstein equation treatment using NT and YOTs values. Activation parameters in several solvents and kinetic solvent isotope effects (MeOH/MeOD) have been determined for both substrates. Product s
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Creary, Xavier, and You Xiong Wang. "Solvolytic kinetic studies by fluorine-19 NMR." Journal of Organic Chemistry 57, no. 17 (1992): 4761–65. http://dx.doi.org/10.1021/jo00043a043.

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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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Park, Kyoung Ho, Mi Hye Seong, Jin Burm Kyong, and Dennis N. Kevill. "Rate and Product Studies with 1-Adamantyl Chlorothioformate under Solvolytic Conditions." International Journal of Molecular Sciences 22, no. 14 (2021): 7394. http://dx.doi.org/10.3390/ijms22147394.

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A study was carried out on the solvolysis of 1-adamantyl chlorothioformate (1-AdSCOCl, 1) in hydroxylic solvents. The rate constants of the solvolysis of 1 were well correlated using the Grunwald–Winstein equation in all of the 20 solvents (R = 0.985). The solvolyses of 1 were analyzed as the following two competing reactions: the solvolysis ionization pathway through the intermediate (1-AdSCO)+ (carboxylium ion) stabilized by the loss of chloride ions due to nucleophilic solvation and the solvolysis–decomposition pathway through the intermediate 1-Ad+Cl− ion pairs (carbocation) with the loss
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Della, EW, and GM Elsey. "Bridgehead Carbocations: Solvolysis of a Series of 5-Substituted Bicycle [3.1.1]heptyl Bromides. Nucleophilic Solvent Assistance to Ionization of 1-Bromobicyclo[3.1.1]heptane." Australian Journal of Chemistry 48, no. 5 (1995): 967. http://dx.doi.org/10.1071/ch9950967.

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The synthesis of a range of 5-substituted bicyclo [3.1.1] heptyl bromides for solvolytic studies is described. It is found that the substituent has a profound effect on the rate of solvolysis of the system and acts principally in accordance with the magnitude of its inductive/field constant σI. The most spectacular example of the effect of the substituent is provided by the COOMe group which leads to a retardation in the rate of methanolysis by a factor of 6.5°105. While a linear relationship in the plot of log k and σI is generally obeyed, as expected for a mechanism mediated by the bicyclo [
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Koh, Han Joong, Suk Jin Kang, and Dennis N. Kevill. "Reaction Mechanism Studies of Solvolytic Displacement of Chloride from Phosphorus." Phosphorus, Sulfur, and Silicon and the Related Elements 183, no. 2-3 (2008): 364–68. http://dx.doi.org/10.1080/10426500701734943.

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Park, Kyoung-Ho, Yelin Lee, Yong-Woo Lee, Jin Burm Kyong, and Dennis N. Kevill. "Rate and Product Studies of 1-Adamantylmethyl Haloformates Under Solvolytic Conditions." Bulletin of the Korean Chemical Society 33, no. 11 (2012): 3657–64. http://dx.doi.org/10.5012/bkcs.2012.33.11.3657.

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Giri, C. C., and D. K. Sharma. "Kinetic studies and shrinking core model on solvolytic extraction of coal." Fuel Processing Technology 68, no. 2 (2000): 97–109. http://dx.doi.org/10.1016/s0378-3820(00)00112-0.

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Dissertations / Theses on the topic "Solvolytic Studies"

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Conner, John K. "Kinetic and product analytical studies of the solvolysis of 2-adamantyl azoxytosylate and related compounds in a range of solvents." Thesis, University of Stirling, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.257438.

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GUO, MAN-YAN, and 郭曼娗. "Studies on solvolytic reactivities of highly hindered tertiary benzylic substrates." Thesis, 1987. http://ndltd.ncl.edu.tw/handle/92743694269985880620.

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Jye-Shiow-Chuang and 莊志秀. "Studies on the Solvolytic Reactivity and the Kinetic Isotope Effect in the Solvolysis of 4-Nitro-4''-Substituted Benzhydryl Substrates." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/77866664552131979412.

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碩士<br>國立臺灣大學<br>化學研究所<br>88<br>ABSTRACT The solvolytic mechanism of diarymethyl bromides(I-B) and chlorides (I-C) were examined in this work. Twenty-two substrates were solvolyzed in 12 to 22 different solvents, respectively, and the rate constants were monitored. Correlation analyses using the single-parameter Grunwald-Winstein equation, log k = mYBnX (and YxBnX), and the dual-parameter equation, log k = mYBnX (and YxBnX) + lNOTS, were performed. The results suggested that the substrates I-B-1 and I-C-1 solvolyzed with limiting SN1 mechanism, whereas nucleophilic solvent part
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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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Hou, Iuan-Jan, and 侯淵傑. "Studies on the Solvolyses:Theoretical Calculation of Solvation Processes and Solvolytic Reactivity of Aromatic Acyl Bromides." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/27832889722500269539.

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碩士<br>國立臺灣大學<br>化學研究所<br>88<br>The first section of this work is the solvolysis of aroyl bromides. The reaction mechanism was investigated based on the parameter of solvent ionizing power (YBnBr). Results suggest that the mechanism is dependent on both the substituent and solvent. We conclude that compund I-B-4 exhibits a limiting SN1 mechanism and the solvolysis of compound I-B-5 involves a nuclephilic solvent participation. The extent of solvent participation increases as the electron-donating ability of the substituent decreases. In the second part of this work, we performed both
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Xu, Hong-Zhang, and 許宏彰. "Studies on solvolytic reactivities and K.I.E. of benzylic substrates and on the techniques of rate measurements." Thesis, 1991. http://ndltd.ncl.edu.tw/handle/02626954891203981594.

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陳邦紹. "Studies on steric effects in the solvolysis of benzylic substrates." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/03325270755837521187.

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Tang, Chung-Shin, and 唐崇鑫. "Studies on Steric Effect in the Solvolysis of Benzylic Substrates." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/20087141053223153197.

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WU, ZENG-RONG, and 吳增榮. "Studies on solvent effect on mechanism in solvolysis of benzylic substrates." Thesis, 1989. http://ndltd.ncl.edu.tw/handle/78157898312152692683.

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Book chapters on the topic "Solvolytic Studies"

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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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