Relevant bibliographies by topics / Curtin-Hammett principle

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Academic literature on the topic 'Curtin-Hammett principle'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Curtin-Hammett principle"

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Chakraborty, Suchandra, and Chandan Saha. "The Curtin-Hammett principle." Resonance 21, no. 2 (2016): 151–71. http://dx.doi.org/10.1007/s12045-016-0307-7.

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Haupert, Laura J., John C. Poutsma, and Paul G. Wenthold. "The Curtin−Hammett Principle in Mass Spectrometry." Accounts of Chemical Research 42, no. 10 (2009): 1480–88. http://dx.doi.org/10.1021/ar800248n.

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Roth, Martin, Wolfgang Damm, and Bernd Giese. "The Curtin-Hammett principle: Stereoselective radical additions to alkenes." Tetrahedron Letters 37, no. 3 (1996): 351–54. http://dx.doi.org/10.1016/0040-4039(95)02153-1.

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Morgan, Jessica, and Arthur Greenberg. "Curtin–Hammett principle: application to benzene oxide–oxepin tautomers." Structural Chemistry 24, no. 6 (2013): 1945–56. http://dx.doi.org/10.1007/s11224-013-0274-5.

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Song, Zhong-Cheng, Gao-Yuan Ma, and Hai-Liang Zhu. "Synthesis, characterization and antibacterial activities of N-tert-butoxycarbonyl-thiazolidine carboxylic acid." RSC Advances 5, no. 32 (2015): 24824–33. http://dx.doi.org/10.1039/c4ra15284k.

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The mechanism of dynamic kinetic resolution, a nucleophilic substitution through an intramolecular hydrogen bonding by the formation of N-Boc-TCAs was proposed and a qualitative explanation was interpretated according to Curtin–Hammett principle.
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ROTH, M., W. DAMM, and B. GIESE. "ChemInform Abstract: The Curtin-Hammett Principle: Stereoselective Radical Additions to Alkenes." ChemInform 27, no. 21 (2010): no. http://dx.doi.org/10.1002/chin.199621082.

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Levkov, Igor V., Oleksandr V. Turov, Oleg V. Shishkin, Svetlana V. Shishkina, and Zoia V. Voitenko. "The Curtin–Hammett principle in action: 1-amino-3H-isoindole in cycloaddition reactions." Tetrahedron 66, no. 2 (2010): 508–12. http://dx.doi.org/10.1016/j.tet.2009.11.031.

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8

Henstridge, Martin C., Stephen G. Davies, James E. Thomson, and Richard G. Compton. "Extending the Curtin–Hammett principle: the relative rates of intramolecular cyclisation versus intermolecular processes." Tetrahedron Letters 55, no. 11 (2014): 1886–89. http://dx.doi.org/10.1016/j.tetlet.2014.01.143.

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Chandrasekhar, S. "Complementarity and the temporal Uncertainty principle. Insight into the dichotomous formulations of the Curtin-Hammett principle. A new formulation." Research on Chemical Intermediates 23, no. 1 (1997): 55–62. http://dx.doi.org/10.1163/156856797x00394.

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Andraos, John. "Kinetic plasticity and the determination of product ratios for kinetic schemes leading to multiple products without rate laws — New methods based on directed graphs." Canadian Journal of Chemistry 86, no. 4 (2008): 342–57. http://dx.doi.org/10.1139/v08-020.

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This paper presents two new and fast methods of determining product ratios for kinetic schemes leading to more than one product on which the Acree–Curtin–Hammett (ACH) principle is based. The methods involve rewriting a given kinetic scheme as a directed graph with nodes and arrows connecting the nodes and takes advantage of the directionality of the kinetic arrows and the enumeration of paths to the various target product nodes. The first, based on path divergent trees, is computationally simpler but works under a specific set of conditions, whereas the second, based on an adapted version of Chou’s graphical method, works for all cases. By means of illustrated examples, both methods are shown to be completely verifiable with conventional more tedious treatments based on rate law determinations. The directed graph concept also works for kinetic schemes that involve entirely equilibrated species. In addition, the paper extends these ideas to variants of the basic ACH scheme, thereby testing the validity of the ACH principle and bringing about a deeper understanding of it. Generalization of the results yields a new parameter, called degree of kinetic plasticity, which completely describes the dynamics of kinetic resolution between the boundary limits of ACH behaviour (100% kinetic plasticity) and anti-ACH behaviour (100% kinetic rigidity). It is shown that this parameter is a good descriptor of all possible scenarios between and including these limits and can be determined experimentally by conducting a new kind of product study that tracks the behaviour of final product excesses as a function of initial substrate excesses. The resulting plot is always linear with a positive slope. The degree of kinetic plasticity is found by simply subtracting the slope from unity. These ideas are tested on complex kinetic schemes exhibiting dynamic kinetic resolution (DKR) by means of organocatalysis.Key words: physical organic chemistry, kinetics, mechanism, directed graph, Chou digraph, Chou graphical rule, Acree-Curtin-Hammett principle, product ratio, dynamic kinetic resolution, organocatalysis.
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Dissertations / Theses on the topic "Curtin-Hammett principle"

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Girard, Emeline. "Etude de la réactivité des cycloheptatriènes silylés : synthèse et fonctionnalisation." Thesis, Bordeaux 1, 2011. http://www.theses.fr/2011BOR14341/document.

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Le travail rapporté dans ce manuscrit s'attache à comprendre l'influence des groupements silylés en position C7 sur l'équilibre de valence entre cycloheptatriène (CHT) et norcaradiène (NCD) et sa réactivité afin de développer de nouvelles approches synthétiques. Nous avons ainsi synthétisé 3 nouveaux cycloheptatriènes silylés et réalisé des réactions de cycloaddition [3+2] et [4+2] visant à les désymétriser. Bien qu'une rationalisation complète n'ait pu être établie, ces travaux ont mis en évidence les réactivités complexes des CHT/NCD silylés. Selon les substituants portés par le silicium, des structures cycliques à 7 chainons ou bicycliques à 6 chainons sont rapidement accessibles. De plus, les groupements silylés permettent aussi une bonne discrimination diastéréofaciale. L'utilisation de composés issus de la désymétrisation de cyloheptatriènes silylés pour la synthèse de mimes de sucres constitue un aspect majeur de nos travaux. La réaction de dihydroxylation appliquée aux CHT silylés a conduit à l’obtention de diols qui ont pu être fonctionnalisés pour conduire à trois aminoheptitols originaux. Les endoperoxides issus des réactions de photo-oxygénation ont été désymétrisés par réaction de Kornblum-DeLaMare asymétrique et une étude des différentes fonctionnalisations possibles, notamment par voie radicalaire, a également été réalisée<br>This work sets out to understand the influence of the silyl group at the C7 position on the valence equilibrium and reactivity of the cycloheptatriene (CHT) - norcaradiène (NCD) system, and to use this knowledge to develop new synthetic methodologies. Three new cycloheptatrienes have been synthesized and we have undertaken [3+2] and [4+2] cycloaddition reactions with the aim of desymetrizing them. Although a complete rationale could not be established, this study has highlighted the complex reactivities of silylated CHTs/NCDs. Depending on the nature of the silyl group, 7-membered rings or bicyclic 6-membered rings can be rapidly obtained, and the silyl groups also allow diastereofacial discrimination. The application of the desymetrization reaction of silylated cycloheptatrienes to the synthesis of sugar mimics constitutes a major aspect of this work. Dihydroxylation of silylated CHTs has afforded diols which could be functionalized into three novel aminoheptitols. Endoperoxides from photooxygenation have been desymmetrized by an asymmetric Kornblum-DeLaMare reaction, and a study of possible further functionalization (notably by radical processes) has also been carried out
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Levkov, Igor. "Réactivité du 1-aminoisoindole, de ses dérivés et analogues : action des diénophiles en milieu homogène et structuré." Toulouse 3, 2013. http://thesesups.ups-tlse.fr/2054/.

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Avec le principe de Curtin-Hammett pour la première fois les isoindoles qui se trouvent principalement dans la forme tautomère isoindoline ont été introduits dans les réactions avec les diénophiles cycliques et les produits de ces réactions ont été obtenus. On a synthétisé une série de tensioactifs isoindoles à longues chaînes d'alkyle et on a étudié leurs propriétés physico-chimiques d'agrégation dans l'eau et dans le formamide. La réactivité de l'1-aminoisoindole a été comparée dans les milieux homogène et structuré. Il a été montré que le milieu structuré peut jouer le rôle d'un catalyseur dans l'interaction avec maléimides. Dans le cas où la concentration des dérivés amphiphiles de aminoisoindole est plus faible que la concentration critique d'agrégation c. à. D. En milieu homogène, la réaction avec les maléimides ne se passe pas. On a proposé deux nouvelles méthodes de synthèse des dérivés fluorescents de 4-aminobenzo[f]isoindole qui ont des certains avantages par rapport à celles qui sont décrites dans la littérature notamment la vitesse de la réaction, la facilité d'obtenir des produits de haute pureté, des meilleurs rendements<br>With the Curtin-Hammett principle for the first time isoindoles which are mainly exist in the isoindoline tautomeric form were introduced into the reaction with cyclic dienophiles and the products of these reactions were obtained. We synthesized a series of surfactantson the basis of isoindoles with long alkyl chains and studied their physico-chemical properties of aggregation in water and formamide. The reactivity of 1-aminoisoindole was compared in homogeneous and structured media. It has been shown that structured environment can act as a catalyst in the interaction with maleimides. In the case where the concentration of amphiphilic derivatives of aminoisoindole is lower than the critical aggregation concentration (homogeneous medium), the reaction with maleimide does not happen. We proposed two new methods of the synthesis of fluorescent derivatives of 4-aminobenzo[f]isoindole which have some advantages over described in the literature including the velocity of the reaction, simple way of obtaining products with high purity and better yields
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Book chapters on the topic "Curtin-Hammett principle"

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"Prochirality, Asymmetric Hydrogenation Reactions, and the Curtin-Hammett Principle." In Symmetry, Spectroscopy, and Crystallography. Wiley-VCH Verlag GmbH & Co. KGaA, 2015. http://dx.doi.org/10.1002/9783527684199.ch7.

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