Academic literature on the topic 'Carbon-carbon bonds'

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Journal articles on the topic "Carbon-carbon bonds"

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Yeston, Jake. "Carbon-carbon bonds without byproducts." Science 345, no. 6192 (July 3, 2014): 42.14–44. http://dx.doi.org/10.1126/science.345.6192.42-n.

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Guari, Yannick, Sylviane Sabo-Etienne, and Bruno Chaudret. "Catalytic Formation of Carbon–Carbon Bonds by Activation of Carbon–Hydrogen Bonds." European Journal of Inorganic Chemistry 1999, no. 7 (July 1999): 1047–55. http://dx.doi.org/10.1002/(sici)1099-0682(199907)1999:7<1047::aid-ejic1047>3.0.co;2-b.

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Tolladay, Mat, Fabrizio Scarpa, and Neil L. Allan. "Interatomic forces breaking carbon-carbon bonds." Carbon 175 (April 2021): 420–28. http://dx.doi.org/10.1016/j.carbon.2020.12.088.

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Branneby, Cecilia, Peter Carlqvist, Anders Magnusson, Karl Hult, Tore Brinck, and Per Berglund. "Carbon−Carbon Bonds by Hydrolytic Enzymes." Journal of the American Chemical Society 125, no. 4 (January 2003): 874–75. http://dx.doi.org/10.1021/ja028056b.

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Goldman, Alan S. "Carbon–carbon bonds get a break." Nature 463, no. 7280 (January 27, 2010): 435–36. http://dx.doi.org/10.1038/463435a.

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Hughes, Russell P. "Conversion of Carbon-Fluorine Bonds α to Transition Metal Centers to Carbon-Hydrogen, Carbon-Carbon, and Carbon-Heteroatom Bonds." European Journal of Inorganic Chemistry 2009, no. 31 (November 2009): 4591–606. http://dx.doi.org/10.1002/ejic.200900816.

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Yeung, Charles S., and Vy M. Dong. "Catalytic Dehydrogenative Cross-Coupling: Forming Carbon−Carbon Bonds by Oxidizing Two Carbon−Hydrogen Bonds." Chemical Reviews 111, no. 3 (March 9, 2011): 1215–92. http://dx.doi.org/10.1021/cr100280d.

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Guari, Yannick, Sylviane Sabo-Etienne, and Bruno Chaudret. "ChemInform Abstract: Catalytic Formation of Carbon-Carbon Bonds by Activation of Carbon-Hydrogen Bonds." ChemInform 30, no. 34 (June 14, 2010): no. http://dx.doi.org/10.1002/chin.199934301.

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Pintér, Áron, Abhishek Sud, Devarajulu Sureshkumar, and Martin Klussmann. "Autoxidative Carbon-Carbon Bond Formation from Carbon-Hydrogen Bonds." Angewandte Chemie International Edition 49, no. 29 (June 11, 2010): 5004–7. http://dx.doi.org/10.1002/anie.201000711.

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Auer, Gertrud, and Martin Oestreich. "Silylzincation of carbon–carbon multiple bonds revisited." Chem. Commun., no. 3 (2006): 311–13. http://dx.doi.org/10.1039/b513528a.

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Dissertations / Theses on the topic "Carbon-carbon bonds"

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Cai, Yingxiao. "Cobalt-catalyzed carbon-carbon bond formation by activation of carbon-halogen or carbon-hydrogen bonds." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLX039/document.

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Ce travail de thèse présente le développement de nouvelles réactions de formation de liaisons carbone-carbone. Le premier chapitre décrit la cyanation d’arylzinciques par catalyse au cobalt à partir d’une source non toxique et bénigne, le N-cyano-N-phenyl-p-methylbenzenesulfonamide (NCTS), et conduit à de bons rendements en benzonitriles correspondants. Dans cette réaction, le cobalt sert de catalyseur non seulement pour la formation des arylzinciques mais aussi pour la formation de liaisons C-CN. Les groupements fonctionnels, cétone et nitrile, sont permis lorsque le complexe de cobalt associé au ligand bipyridine est utilisé. Le deuxième chapitre porte sur l’homocouplage Csp3-Csp3. Un simple halogénure de cobalt permet de catalyser la dimérisation des halogénures d’alkyles et des acétates d’allyles avec de bons à d’excellents rendements. L’ajout d’iodure de sodium permet d’étendre cette réaction aux chlorures et tosylates d’alkyles. Le couplage croisé entre 2 halogénures d’alkyle différents a également été testé mais les conditions doivent être optimisées. Dans le troisième chapitre, le couplage croisé catalysé au cobalt entre des bromures vinyliques et des chlorures benzyliques est présenté. Des halogénures de vinyles et de benzyles porteurs de groupements electrodonneurs ou electroattrateurs peuvent ainsi être couplés efficacement avec rétention de la configuration de la double liaison. Un mécanisme radicalaire semble être impliqué. Enfin, le dernier chapitre décrit l’arylation d’une 2-phenylpyridine avec un arylzincique par catalyse au cobalt par activation d’une liaison C-H et conduit à de premiers résultats encourageants
This thesis presents the development of cobalt-catalyzed carbon-carbon bonds formation. The first chapter describes a novel cobalt-catalyzed electrophilic cyanation of arylzinc species, employing benign and non-toxic N-cyano-N-phenyl-p-methylbenzenesulfonamide (NCTS) as the cyano source. In this reaction, cobalt catalyzes both the formation of arylzinc species and the cyanation reaction. Various benzonitriles are synthesized affording good to excellent yields. Using cobalt-bipyridine complexes instead of CoBr2, ketone and nitrile groups can be tolerated. The second chapter reports cobalt-catalyzed Csp3-Csp3 homocoupling reaction. A simple catalytic system could deliver dimers of a number of alkyl halides/pseudohalides and allylic acetates. Sodium iodide is crucial for the homocoupling of unactivated alkyl chlorides and tosylates. This method is extended to alkyl-alkyl cross-coupling; however, the conditions still need to be optimized. The third chapter describes a cobalt-catalyzed vinyl-benzyl cross-coupling. A variety of functionalized vinyl bromides and benzyl chlorides are efficiently coupled under mild conditions in good to excellent yields, with retention of Z/E configuration. A few mechanistic experiments indicate a single electron transfer involved. The last chapter discusses the progress on the cobalt-catalyzed arylation of 2-phenylpyridine with an arylzinc species by C-H activation and promising results are obtained
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Shirakura, Masamichi. "Nickel-Catalyzed Additions of Acetylenic Carbon-Element Bonds to Carbon-Carbon Multiple Bonds." 京都大学 (Kyoto University), 2010. http://hdl.handle.net/2433/120895.

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Rene, Olivier. "Advances in Palladium-Catalyzed Carbon-Carbon Bond Formation Via Functionalization of Carbon-Hydrogen Bonds." Thesis, University of Ottawa (Canada), 2010. http://hdl.handle.net/10393/28864.

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In the past decade, significant advances have been made in the formation of Csp2-Csp 2 bonds by direct arylation. However, this process generally requires the use of forcing conditions at temperatures typically above 100 °C, which limits the substrate compatibility as well as large-scale applications. Inspired by the recent advances in the development of milder reaction conditions for the arylation of electon-rich arenes in an aqueous medium, we describe that such reactivity is also possible with electron-deficient polyfluorinated arenes at room temperature under biphasic conditions. Several examples are included, highlighting the application of this method to the preparation of a variety of biaryls using iodides bearing electron-poor, electron-rich and sterically encumbering substituents. Several polyfluoroarenes with different substitution patterns are also tolerated. In addition, the method can be extended to the arylation of halogenated thiophenes in a regioselective fashion. However, direct arylation conditions that are general for a broad variety of heterocyclic coupling partners are only sparsely reported and the use of a different set of conditions for each type of substrate remains the norm. As part of a program dedicated to the study of the direct arylation mechanism and the development of broadly applicable reaction conditions, we became interested in investigating the effect of electron-deficient biaryl-type phosphine ligands on the C-H bond cleavage step of this process under Pd(0) catalysis. Inspired by previous reports validating the efficiency of these types of ligands in intramomecular direct arylation, we have developed a new electron-deficient fluoroarylphosphine ligand that promotes C-H bond functionalization of a broad variety of heterocycles. The demonstrated ability of these types of ligands to facilitate the C-H bond cleavage step of this process has been assessed and experimental evidence suggests a concerted metalation-deprotonation mechanism in the presence of an electrophilic metal center. Only recently, nonetheless, has attention been paid to the formation of Csp3-Csp2 bonds by the direct arylation strategy. As an alternative to the use of aliphatic halides as an entry point to a1kylpalladium(II) intermediates, we describe the use of a Heck-like cyclization of an aryl halide as a means of intercepting the key palladium(II) species, along with the first examples of domino Heck-arylation involving intermolecular capture with heterocyclic arenes via C-H bond cleavage. Several examples are presented, demonstrating the application of this method to the preparation of diverse dihydrobenzofurans, indolines and oxindoles substituted with sulfur-containing heterocycles such as thiazoles, thiophenes and benzothiophene.
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Hoskins, Travis Justin Christopher. "Carbon-carbon bond forming reactions." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/29769.

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Thesis (M. S.)--Chemical Engineering, Georgia Institute of Technology, 2009.
Committee Chair: Dr. Christopher Jones; Committee Co-Chair: Dr. Pradeep Agrawal; Committee Member: Dr. Sujit Banerjee; Committee Member: Dr. Tom Fuller. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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Dong, Boliang. "Formation of Carbon-Carbon and Carbon-Hetero Bonds through Gold Catalysis." Scholar Commons, 2017. https://scholarcommons.usf.edu/etd/7396.

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This dissertation mainly contains two parts: one is C-X (C, O, S) bond formation through gold(I) catalysis, one is new applications via gold(I/III) redox catalysis. In first part, gold(I) catalysts would be introduced and their general applications, then the TA-Au species will be emphasized including the design, synthesis, characters and their application in catalysis. The applications are well developed during the past decade in our group, but here only involves three examples regarding C-C, C-O and C-S bond formations. From these effective applications, the unique stability and reactivity of TA-Au will be studied and explained, which is the reason and value of TA-Au discovery. In second part, gold(I/III) redox catalysis will be presented through two application examples: cross-coupling of terminal alkynes, multiple bond di-functionalization. The most challenging part for coupling reactions is the competition between homo-coupling and cross-coupling products, while in our project, we have successfully developed a new method to selectively obtain cross-coupling as major product to homo-coupling product (ratio 12:1). Later on, we found a new method to achieve gold (I/III) redox cycle by using mild oxidant diazonium salt instead of PIDA or Selectfluor strong oxidant. The new mild and efficient method have largely extended the application of gold(I/III) redox catalysis into organic synthesis. In sum, the new gold catalysts and catalysis methods reported here are important to the development of gold catalysis field, which are critical and useful to help people understand the reason of applying noble gold species as catalysts, and the advantages that other metals do not have.
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Zhang, Min. "Study on selective carbon-carbon, carbon-nitrogen, and carbon-oxygen bonds formation starting from alkynes." Rennes 1, 2009. http://www.theses.fr/2009REN1S036.

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The thesis is composed of two parts. Part I presents catalytic C-C, C-N, C-O bond formation: a series of dienylethers, 2,5-disubstituted furans, allylketones, γ-functionalized ketones, multisubstituted quinolines were made starting from terminal alkynes with the initial help of a ruthenium catalyst. Part II presents C-C, C-N, C-O bond formation reactions: a variety of tetrahydropyrimidines, and 1,3-oxazines were synthesized starting from electron-deficient alkynes via multiple component reactions
La thèse est composée de deux parties. La partie I présente la formation catalytique de liaisons C-C, C-N et C-O : une série d’ethers, de diényle, furanes 2,5-disubstitués, cétones allyliques et γ-fonctionalisées et quinolines polysubstituées ont été préparées à partir d’alcynes avec l’aide initiale d’un catalyseur de ruthenium. La partie II présente la formation de liaisons C-C, C-N, C-O: une variété de tetrahydropyridines, et de 1,3-oxazines ont été synthétisées à partir d’alcynes electrophiles via des réactions à composants multiples
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Allpress, Caleb J. "Oxidative Aliphatic Carbon-Carbon Bond Cleavage Reactions." DigitalCommons@USU, 2013. https://digitalcommons.usu.edu/etd/2003.

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The work presented in this dissertation has focused on synthesizing complexes of relevance to dioxygenase enzymes that oxidatively cleave aliphatic carbon-carbon bonds. The goal of this research was to elucidate mechanistic aspects of the activation of aliphatic carbon-carbon bonds towards cleavage by reaction with oxygen, and also investigate the regioselectivity of these reactions. The oxidative cleavage of a variety of enolizable substrates has been explored by utilizing several transition metal complexes supported by an aryl-appended tris(pyridylmethyl)amine ligand. In order to probe the widely-accepted “chelate hypothesis” for how changes in regiospecificity are achieved as a function of metal ion, we synthesized the compound [(6Ph2TPA)Fe(PhC(O)COHC(O)Ph)]OTf. Based on UV-vis and IR spectroscopy, the acireductone enolate was found to bind via a six-membered chelate ring. By comparison with the reactivity of [(6Ph2TPA)Ni(PhC(O)COHC(O)Ph)]ClO4, we determined that the chelate hypothesis was an insufficient explanation of the observed regioselectivity. Rather, ferrous ion-mediated hydration of a vicinal triketone intermediate was the key factor in determining the regioselectivity of the C-C cleavage reaction. We have developed a high-yielding synthetic route to protected precursors of C(1)H acireductones. Preparation of the complexes [(6Ph2TPA)M(PhC(O)COCHOC(O)CH3)]ClO4 (M = Fe, Ni) followed by judicious choice of deprotecting conditions allowed us to investigate the oxygen reactivity of a mono-nuclear complex with a dianionic acireductone substrate for the first time. This provides a promising strategy to continue investigations of complexes of relevance to the enzyme- substrate adduct of the acireductone dioxygenases. Divalent late first-row transition metal complexes have been used to investigate some new strategies for the activation of dioxygen and subsequent cleavage of C-C bonds. We have utilized photoreduction of a Ni(II) center to generate a highly O2-reactive Ni(I) fragment that leads to cleavage of a chloro-diketonate substrate. Additionally, we have found a Cu(II)-mediated thermal cleavage of chloro-diketonate substrates at room temperature. This reaction is interestingly accelerated by the addition of a catalytic amount of chloride ion.
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Dombrowski, James Michael. "Catalytic Cleavage of Carbon-Carbon Sigma Bonds Using Transition Metals." Thesis, Boston College, 2005. http://hdl.handle.net/2345/407.

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Thesis advisor: Lawrence T. Scott
The focus of this project was to probe the ability of various transition metal complexes to cleave carbon-carbon bonds in a C30H12 hemifullerene. The hemifullerene was synthesized in our lab from commercial 1-tetralone and bromonaphthalene in six steps. Palladium and nickel complexes were used to open the five membered rings along the periphery of the C30H12 bowl. Diphosphine complexes of nickel were capable of opening either all three five membered rings or one of the periphery five membered rings and the central six membered ring
Thesis (BS) — Boston College, 2005
Submitted to: Boston College. College of Arts and Sciences
Discipline: Chemistry
Discipline: College Honors Program
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Liu, Yang <1988&gt. "Ni(II) and Photocatalyzed Functionalization of Carbon-Carbon Double Bonds." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amsdottorato.unibo.it/9360/1/PhD%20Thesis_MB_%20Yang_Liu%20.pdf.

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Homogenous nickel catalysis is gaining more and more attention of chemist due to a variety of oxidative states resulting from distribution of its external electron in 3d orbital and abundance in the earth crust. Due to difference in diameter and distribution of external electron, nickel complexes possess some unique activities that 4d, 5d noble metals can’t achieve. In this thesis, we described our work on nickel(II) catalyzed Suzuki coupling of electron perturbed allenes to synthesize stereochemically defined enamine and ester. The methodology showed excellent tolerance to variously substituted phenylboronic acids. Additionally, with allenamide, it can also proceed in cascade tricomponent versions with aldehyde wherein dimethylzinc was also compatible. Theoretical computation was conducted to reveal the nature of mechanism. This work realized an umpolung of nucleophilicity of allenamde, extending the reactivity of it. As an expansion of previous work on nickel chemistry, we stretched our sight to photoredox reaction with initial idea of using organonickel as co-catalyst. So, we devoted to develop photocatalyzed synthesis of 1,3,4-trisubstituted pyrrole in a mild, oxidant-free way which was also documented in this thesis. Further work to disclose the mechanism were also done suggesting the azide were reduced through a new pathway. Wacker oxidation is a quite useful transformation from alkene to ketone or aldehyde which always needs palladium catalyst system and theoretically at least one equivalent oxidant. Herein, we disclose a new way to realize Wacker Oxidation through a gentle photoredox process where noble metal, harsh condition, oxidant or other additives are not indispensable any more. At last, the assistant work has been done to realize the Cp*Rh(III) catalyzed enantioselective C-H activation of acrylamide which is not further mentioned in this thesis. In this work, the activated acrylamide coupled with terminal allene affording an annulated 5-member lactam with excellent enantioselectivity. (DOI: 10.1002/anie.201909971)
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O'Connor, Ryan. "Rhodium-catalysed allylic substitution with unstabilised carbon nucleophiles : asymmetric construction of carbon-carbon bonds." Thesis, University of Liverpool, 2013. http://livrepository.liverpool.ac.uk/17253/.

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The controlled formation of carbon-carbon bonds is the bedrock of organic chemistry, with the asymmetric construction of stereogenic carbon-carbon bonds remaining a key motivation for the development of novel synthetic methodologies. Transition metal catalysis provides an important strategy in the arsenal of the modern synthetic chemist. While there is a plethora of transition metal-catalysed cross-couplings for the formation of sp2-sp2 and achiral sp2-sp3 carbon bonds, there are relatively few methodologies for the selective formation of stereogenic sp-sp3, sp2-sp3 and sp3-sp3 carbon-carbon bonds, the number of which that involve highly reactive organometallic reagents are fewer still. Two methodologies that can enable this asymmetric coupling are copper-catalysed SN2’ allylic alkylation and transition metal-catalysed allylic substitution. The overall utility of both these methods is described in the introductory review, which seeks to compare and contrast the relative advantages and disadvantage of both approaches. The asymmetric formation of carbon-carbon bonds utilising unstabilised carbon nucleophiles is generally dominated by the copper-catalysed SN2’ allylic alkylation. However, the copper-catalysed reaction suffers from poor substrate scope, in which electronically biased or symmetrical substrates are required in order to ensure favourable regioselectivities. Another restriction is that, for the formation of a stereocenter, the reaction is mechanistically limited to disubstituted allylic substrates. These linear substrates often require a multistep synthesis which involves a selective olefination, as an isomeric mixture of alkenes would result in the erosion of asymmetric induction. In contrast, there has been very little development of the analogous transition metal-catalysed allylic substitution utilising unstabilised carbon nucleophiles, especially in comparison to the analogous methodologies utilising stabilised carbon and heteroatom nucleophiles. Despite the numerous potential advantages that are afforded by this approach, a general method for the regio- and stereoselective transition-metal catalysed allylic substitution utilising unstabilised carbon nucleophiles has yet to be reported. Chapter 2 describes the development of a novel regio- and stereoselective rhodium-catalysed allylic substitution reaction, which utilises benzyl magnesium bromide as an unstabilised carbon nucleophile. Following a brief introduction to the rhodium-catalysed allylic substitution reaction, this chapter is organised into four distinct sections. The first of these outlines the identification of a suitable nucleophile, and the subsequent development of reaction conditions for the regioselective alkylation of secondary allylic carbonates with a range of benzyl magnesium bromides transmetallated with zinc iodide. Then the next section will deal with studies toward the development of the stereospecific variant, these studies will highlight the main challenges of deploying a sp3-hybridised carbon nucleophile. This section will also determine the absolute stereochemical outcome of the reaction, thus confirming the inner sphere mechanism of the reaction. The third section will demonstrate that how the limitation of the stereospecific reaction, namely the fluxionality of the rhodium-enyl, can be utilised to develop a regio- and diastereoselective alkylation for the formation of 1,2-stereoarrays containing tertiary and quaternary carbon stereocenters. Finally, preliminary studies towards the expansion of this methodology to include an sp2-hybridised vinylic nucleophiles for the preparation of 1,4-skipped dienes will be detailed. Overall, we have developed a novel, highly regioselective rhodium-catalysed allylic substitution of secondary allylic carbonates utilising highly unstabilised carbon nucleophiles. We also have developed a highly diastereoselective allylic substitution for the construction of both tertiary and quaternary carbon stereocenters, which to best of our knowledge, has yet to be described in the context of rhodium-catalysed allylic substitution utilising an unstabilised carbon nucleophile. We have successfully carried out preliminary studies towards the development of a rhodium-catalysed allylic substitution utilising a vinyl organometallic reagent as nucleophile, as well.
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Books on the topic "Carbon-carbon bonds"

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Ackermann, Lutz, ed. Catalytic Hydroarylation of Carbon-Carbon Multiple Bonds. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2017. http://dx.doi.org/10.1002/9783527697649.

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R, Hartley F., and Patai Saul, eds. Carbon-carbon bond formation using organometallic compounds. Chichester: J. Wiley, 1985.

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Giese, Bernd. Radicals in organic synthesis: Formation of carbon-carbon bonds. Oxford: Pergamon, 1986.

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Murakami, Masahiro, and Masahiro Murakami, eds. Cleavage of Carbon-Carbon Single Bonds by Transition Metals. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2015. http://dx.doi.org/10.1002/9783527680092.

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Radicals in organic synthesis: Formation of carbon-carbon bonds. Oxford [Oxfordshire]: Pergamon Press, 1986.

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Giese, Bernd. Radicals in organic synthesis: Formation of carbon-carbon bonds. Elkins Park, PA: Franklin, 1995.

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Giese, Bernd. Radicals in organic synthesis: Formation of carbon-carbon bonds. Elkins Park, PA: Franklin, 1996.

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M, Roberts Stanley, ed. Metal catalysed carbon-carbon bond-forming reactions. Chichester, West Sussex, England: John Wiley, 2004.

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Iolani, Cohen JaimeLee, ed. Synthesis of carbon-phosphorus bonds. 2nd ed. Boca Raton, FL: CRS Press, 2004.

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Synthesis of carbon-phosphorus bonds. Boca Raton, Fla: CRC Press, 1988.

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Book chapters on the topic "Carbon-carbon bonds"

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Grovenstein, E. "By Cleavage of Carbon-Carbon Bonds." In Inorganic Reactions and Methods, 167–71. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145258.ch20.

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Ragan, John A. "Addition to Carbon-Carbon Multiple Bonds." In Practical Synthetic Organic Chemistry, 167–235. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118093559.ch3.

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Norman, Richard, and James M. Coxon. "Formation of carbon—carbon bonds: organometallic reagents." In Principles of Organic Synthesis, 184–205. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-2166-8_6.

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Carey, Francis A., and Richard J. Sundberg. "Electrophilic Additions to Carbon-Carbon Multiple Bonds." In Advanced Organic Chemistry, 167–218. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4613-9797-7_4.

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Harrison, P. G. "By Addition to Carbon-Carbon Multiple Bonds." In Inorganic Reactions and Methods, 329–30. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145234.ch132.

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Anderson, G. K. "Cleavage and Formation of Carbon-Carbon Bonds." In Inorganic Reactions and Methods, 288–94. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145296.ch225.

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Carey, Francis A., and Richard J. Sundberg. "Electrophilic Additions to Carbon-Carbon Multiple Bonds." In Part B: Reactions and Synthesis, 191–248. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-662-39510-3_4.

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Storms, E. K. "Carbon-Group-IA Bonds." In Inorganic Reactions and Methods, 148. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145258.ch12.

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Norman, Richard, and James M. Coxon. "Formation of carbon—carbon bonds: base-catalyzed reactions." In Principles of Organic Synthesis, 206–50. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-2166-8_7.

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Anderson, G. K. "Reactions of Tin-Carbon and Lead-Carbon Bonds." In Inorganic Reactions and Methods, 294–95. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145296.ch226.

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Conference papers on the topic "Carbon-carbon bonds"

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Alexey, Sukhorukov, Pavel Ushakov, Yana Naumovich, and Sema Ioffea. "NEW METHODS FOR THE CONSTRUCTION OF CARBON-CARBON AND CARBON-HETEROATOM BONDS UTILIZING NITRO-DERIVATIVES." In Chemistry of nitro compounds and related nitrogen-oxygen systems. LLC MAKS Press, 2019. http://dx.doi.org/10.29003/m721.aks-2019/53-55.

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Park, Jungkyu, and Vikas Prakash. "Thermal Transport at Carbon Nanotube-Graphene Junction." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-66645.

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We present results of a molecular dynamics study to analyze thermal transport at carbon nanotube (CNT)-graphene junctions comprising of single layer graphene and (6,6) armchair single-walled carbon nanotubes (SWCNTs). Two possible junction types with different degrees of sp2 and sp3 hybridization are investigated. Reverse Non-Equilibrium Molecular Dynamics (RNEMD) simulations are used to obtain the thermal conductivities in these hybrid structures and also analyze the role of the interfacial thermal resistance at the SWCNT-graphene junctions in limiting thermal transport. The highest out-of-plane (along the SWCNT axis) thermal conductivity of a hybrid structure with a CNT-graphene junction was obtained to be 158.9±1.2 W/m-K when the junction comprised of only sp2 bonds with an interpillar distance of 15 nm and a pillar height of 200 nm. The highest in-plane thermal conductivity (along the graphene layer plane) with two CNT-graphene junctions was found to be 392.2±9.9 W/m-K with junctions comprising of only sp2 bonds and an interpillar distance of 20 nm and a pillar height of 25 nm. In all cases, junctions with mixed sp2/sp3 hybridization showed higher interfacial thermal resistance than junctions with pure sp2 bonds, and the thermal interfacial resistance was found to be weakly dependent on the length of CNT and the interpillar distance. The highest interfacial thermal resistance measured across the CNT-graphene junction was 3.10×10−6 K-cm2/W when the junction comprised of mixed sp2/sp3 bonds and with 15 nm interpillar distance and 50 nm pillar height.
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RAHMAN, MINHAZUR, GAYATHRI KOLA, MONJUR MORSHED RABBY, MUTHU RAM PRABHU ELENCHEZHIAN, RELEBOHILE GEORGE QHOBOSHEANE, VAMSEE VADLAMUDI, KENNETH REIFSNIDER, and RASSEL RAIHAN. "EFFECTS OF SURFACE CHARACTERISTICS ON MECHANICAL AND DIELECTRIC PROPERTIES OF ADHESIVELY BONDED CARBON FIBER COMPOSITES." In Thirty-sixth Technical Conference. Destech Publications, Inc., 2021. http://dx.doi.org/10.12783/asc36/35836.

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The rapid rise of fiber reinforced composite usage in aircraft, spacecraft and automobile industries made the proper comprehension of repair and joining of these materials a crucial aspect. Adhesive bonding is one of the most advantageous and desirable joining and repair technique for fiber reinforced composites. However, the heterogeneity of fiber reinforced composites and the complex interfacial nature of the adhesive bonds, makes most non-destructive evaluation and assessment techniques ineffective to assess the state of the bond. Different manufacturing and surface preparation techniques impart different surface characteristics to the adherends, hence proper understanding of the state of bonds is dependent upon the characteristics of the adherend surfaces. In this approach, carbon fiber composite adherends with controlled surface modifications were made into lap-shear test specimens using film adhesive. The effects of surface characteristics such as surface roughness and surface free energy of the adherend surfaces, on bond performance are studied. These surface characteristics are found to be an indicator of bond performance and can even be used to explain failure modes. Moreover, the performance of these bonds with varying surface characteristics are analyzed non-destructively by dielectric spectroscopy and compared with the mechanical performance of the bonds.
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Chugreeva, Galina, Kirill Laptinskiy, Sergey Burikov, Alexandra Tomskaya, and Tatiana Dolenko. "Carbon dots effect on hydrogen bonds in aqueous suspensions." In Laser Physics, Photonic Technologies, and Molecular Modeling, edited by Vladimir L. Derbov. SPIE, 2021. http://dx.doi.org/10.1117/12.2591051.

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Nhan, Justin, Jacob Sitterly, and Robert L. Brainard. "Modeling the acid-catalyzed cleavage of carbon-oxygen bonds." In Advances in Patterning Materials and Processes XXXVIII, edited by Douglas Guerrero and Daniel P. Sanders. SPIE, 2021. http://dx.doi.org/10.1117/12.2583013.

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Fungura, Fadzai, William Robin Lindemann, Joseph Shinar, and Ruth Shinar. "Carbon dangling bonds in photodegraded polymer:fullerene solar cells (Conference Presentation)." In Organic, Hybrid, and Perovskite Photovoltaics XVIII, edited by Kwanghee Lee, Zakya H. Kafafi, and Paul A. Lane. SPIE, 2017. http://dx.doi.org/10.1117/12.2275054.

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Park, Jungkyu, and Paul Pena. "Strain Effect on Thermal Transport in Carbon Nanotube-Graphene Junctions." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-87764.

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We employ molecular dynamics simulations to explore the effect of tensile strain on the thermal conductivity of carbon nanotube (CNT)-graphene junction structures. Two different types of CNT-graphene junctions are simulated; a perfect seamless junction between CNT and graphene with complete sp2 covalent bonds, and a CNT-graphene junction with mixed sp2/sp3 covalent bonds are studied. The most interesting phenomenon observed in the present research study is that the thermal conductivity of CNT-graphene junction structures increases with an increase in mechanical strain. For the case of CNT-graphene junction structure with pillar height of 50 nm and inter-pillar distance of 15 nm, the thermal conductivity is improved by 22.4% when 0.1 tensile strain is imposed. It is observed that the thermal conductivity improvement is enhanced when a larger graphene floor is placed between junctions since larger graphene floor allows larger deformation (larger tensile strain) in the junction. In addition, the thermal conductivity of CNT-graphene junction structures with pure sp2 bonds is observed to be higher than the thermal conductivity of CNT-graphene junction structures with mixed sp2/sp3 bonds regardless of the amount of tensile strain. The obtained results will contribute to the development of flexible electronics by providing a theoretical background on the thermal transport of three dimensional carbon nanostructures under deformation.
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Atchley, Bryce, Erica Wu, Jungkyu Park, and Eduardo Farfan. "Tritium Absorption on Carbon Nanostructures." In ASME 2021 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/imece2021-70538.

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Abstract In the present research study, we utilize a molecular dynamics simulation to investigate the possibility of using multiple graphene sheets for tritium control. The graphene sheets are equilibrated to temperatures of 10k, 100k, 300k, 600k, 900k, or 1200k in a simulation. After equilibration, the tritium atoms are made to travel toward the graphene sheet with uniform velocity. The velocities of tritium atoms are selected so that incident energies may be 0.1, 0.2, 0.5, 1, 2, 5, 10, 20, 50, 100, 200, or 500 eV. Reflection is shown to be the dominant interaction at low tritium incident energy, with a sharp decline in reflection rates as energy increases. For the case of a single layer of graphene, reflection rates reach a minimum around 5eV and steadily climbs as energy is increased to 10eV. Absorption rates are shown to increase with increasing tritium energy until energies are very high, around 5 eV. After 5 eV, absorption rates decrease as incident energy increases. Penetration rates of incident tritium atoms remain low until 5 eV, after which the rates increase steadily. Higher graphene equilibration temperatures yield higher absorption rates at low incident energies but lead to lower absorption rates at high incident energies. At low incident energies, reflection is favored more at lower temperatures, while graphene temperatures do not seem to affect reflection rates much at high incident energies. Lastly, penetration rates are consistently higher at higher graphene temperatures. The larger amount of energy present in the structure at higher temperatures allows for the C-C bonds in graphene to be more readily broken. The results obtained in this research study will be used to develop novel nanomaterials that can be employed for tritium control.
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Zimmermann, Kristen A., David Inglefield, Timothy E. Long, Christopher G. Rylander, and M. Nichole Rylander. "Fluorescently Labeled Carbon Nanohorns as Intracellular Drug Delivery Vehicles." In ASME 2012 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/sbc2012-80818.

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Nanomaterials have been investigated for biomedical applications due to their unique properties. Their shape, size, surface, and material can be altered specifically for the type of application. Carbon nanomaterials (CNMs) have been effectively utilized as photoabsorbers to enhance laser-based therapies [1] and can be easily loaded with drugs or targeting moieties [2, 3]. The strong carbon bonds in this material provide a chemical and mechanical inertness that can serve as a barrier to protect chemotherapeutic agents from degrading quickly as they are transported to the site of interest [2].
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Cranford, Steven W. "Statistical Nanomechanics of Ice and Effect of Embedded Carbon Dioxide." In ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/omae2015-41027.

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While the macroscopic mechanical properties of pure ice has been investigated by laboratory tests and its behavior has been characterized by existing fracture mechanics models, the effect of environmental conditions — such as the concentration of embedded carbon dioxide (CO2) — is not fully understood. It is known that the chemical environment can have significant effects on the mechanical properties of ice. Using full atomistic molecular dynamics (MD), we probe the tensile strength of a single ice crystal. We systematically introduce a random concentration of CO2 molecules by replacing H2O molecules on the ice crystal lattice (e.g., substitutional defects). As anticipated, we observe a drop in strength with an increase in CO2 concentration. The decreased ice strength is not merely caused by material defects induced by the CO2 inclusions, but rather by the fact that the strength of hydrogen bonds — the chemical bonds between water molecules in an ice crystal — is actively disrupted under increasing concentrations of CO2. The inclusions provide both stress concentrations and nucleation points for crack/void formation. We then assume a Poisson distribution to reflect various concentrations of CO2 and apply nanoscale Weibull statistics (NWS) as a brittle material failure model. The results can be used to help predict the strength range of bulk ice.
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Reports on the topic "Carbon-carbon bonds"

1

Jones, William D. Transition Metal Activation And Functionalization Of Carbon-Hydrogen And Carbon-Carbon Bonds. Office of Scientific and Technical Information (OSTI), October 2019. http://dx.doi.org/10.2172/1569760.

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Jones, W. D. Transition metal activation and functionalization of carbon-hydrogen bonds. Office of Scientific and Technical Information (OSTI), November 1989. http://dx.doi.org/10.2172/5046174.

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Jones, W. D. Transition metal activation and functionalization of carbon-hydrogen bonds. Office of Scientific and Technical Information (OSTI), June 1992. http://dx.doi.org/10.2172/5157271.

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Bausch, M. Protocols for the selective cleavage of carbon-sulfur bonds in coal. Office of Scientific and Technical Information (OSTI), January 1991. http://dx.doi.org/10.2172/5795565.

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Hartwig, J. F. Synthesis and reactivity of compounds containing ruthenium-carbon, -nitrogen, and -oxygen bonds. Office of Scientific and Technical Information (OSTI), December 1990. http://dx.doi.org/10.2172/5530662.

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John J. Kilbane II. Metabolic Engineering to Develop a Pathway for the Selective Cleavage of Carbon-Nitrogen Bonds. Office of Scientific and Technical Information (OSTI), April 2006. http://dx.doi.org/10.2172/887496.

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John J. Kilbane II. METABOLIC ENGINEERING TO DEVELOP A PATHWAY FOR THE SELECTIVE CLEAVAGE OF CARBON-NITROGEN BONDS. Office of Scientific and Technical Information (OSTI), October 2004. http://dx.doi.org/10.2172/836101.

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John J. Kilbane III. METABOLIC ENGINEERING TO DEVELOP A PATHWAY FOR THE SELECTIVE CLEAVAGE OF CARBON-NITROGEN BONDS. Office of Scientific and Technical Information (OSTI), December 2003. http://dx.doi.org/10.2172/822693.

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John J. Kilbane II. Metabolic Engineering to Develop a Pathway for the Selective Cleavage of Carbon-Nitrogen Bonds. Office of Scientific and Technical Information (OSTI), October 2005. http://dx.doi.org/10.2172/860998.

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Jones, W. D. Transition metal activation and functionalization of carbon-hydrogen bonds. Progress report, December 1, 1989--November 30, 1992. Office of Scientific and Technical Information (OSTI), June 1992. http://dx.doi.org/10.2172/10149726.

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