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Relevant bibliographies by topics / Radical cascade

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Academic literature on the topic 'Radical cascade'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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Journal articles on the topic "Radical cascade"

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Lynch, Dylan M., and Eoin M. Scanlan. "Thiyl Radicals: Versatile Reactive Intermediates for Cyclization of Unsaturated Substrates." Molecules 25, no. 13 (2020): 3094. http://dx.doi.org/10.3390/molecules25133094.

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Sulfur centered radicals are widely employed in chemical synthesis, in particular for alkene and alkyne hydrothiolation towards thioether bioconjugates. The steadfast radical chain process that enables efficient hydrothiolation has been explored in the context of cascade reactions to furnish complex molecular architectures. The use of thiyl radicals offers a much cheaper and less toxic alternative to the archetypal organotin-based radical methods. This review outlines the development of thiyl radicals as reactive intermediates for initiating carbocyclization cascades. Key developments in casca

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Rinderhagen, Heiko, and Jochen Mattay. "Synthetic Applications in Radical/Radical Cationic Cascade Reactions." Chemistry - A European Journal 10, no. 4 (2004): 851–74. http://dx.doi.org/10.1002/chem.200304827.

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Bowman, W. Russell, Peter T. Stephenson, and Adrian R. Young. "Cascade radical cyclisations of imines." Tetrahedron 52, no. 35 (1996): 11445–62. http://dx.doi.org/10.1016/0040-4020(96)00636-9.

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Quiclet-Sire, Béatrice, and Samir Z. Zard. "Some aspects of radical cascade and relay reactions." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 473, no. 2200 (2017): 20160859. http://dx.doi.org/10.1098/rspa.2016.0859.

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The ability to create carbon–carbon bonds is at the heart of organic synthesis. Radical processes are particularly apt at creating such bonds, especially in cascade or relay sequences where more than one bond is formed, allowing for a rapid assembly of complex structures. In the present brief overview, examples taken from the authors' laboratory will serve to illustrate the strategic impact of radical-based approaches on synthetic planning. Transformations involving nitrogen-centred radicals, electron transfer from metallic nickel and the reversible degenerative exchange of xanthates will be p

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Wu, Chuan-Shuo, Rong Li, Qi-Qiang Wang, and Luo Yang. "Fe-Catalyzed decarbonylative alkylation–peroxidation of alkenes with aliphatic aldehydes and hydroperoxide under mild conditions." Green Chemistry 21, no. 2 (2019): 269–74. http://dx.doi.org/10.1039/c8gc02834f.

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Decarbonylation at 60–80 °C! Readily available linear/branched aliphatic aldehydes were decarbonylated into 1°, 2° and 3° alkyl radicals at low temperature for cascade radical insertion and radical–radical coupling to construct C(sp<sup>3</sup>)–C(sp<sup>3</sup>) and C(sp<sup>3</sup>)–O bonds.

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Bowman, W. Russell, Martin O. Cloonan, Anthony J. Fletcher, and Tobias Stein. "Synthesis of heteroarenes using cascade radical cyclisation via iminyl radicals." Organic & Biomolecular Chemistry 3, no. 8 (2005): 1460. http://dx.doi.org/10.1039/b501509j.

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Bowman, W. Russell, Colin F. Bridge, Philip Brookes, Martin O. Cloonan, and David C. Leach. "ChemInform Abstract: Cascade Radical Synthesis of Heteroarenes via Iminyl Radicals." ChemInform 33, no. 21 (2010): no. http://dx.doi.org/10.1002/chin.200221163.

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Santagostino, Marco, and Jeremy D. Kilburn. "Cascade radical reactions of methylenecyclopropane derivatives." Tetrahedron Letters 35, no. 47 (1994): 8863–66. http://dx.doi.org/10.1016/s0040-4039(00)78518-2.

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Pattenden, Gerald, and Paul Wiedenau. "Cascade radical cyclisations with vinylcyclopropane electrophores." Tetrahedron Letters 38, no. 20 (1997): 3647–50. http://dx.doi.org/10.1016/s0040-4039(97)00691-6.

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Huang, Huan-Ming, Monserrat H. Garduño-Castro, Charlotte Morrill, and David J. Procter. "Catalytic cascade reactions by radical relay." Chemical Society Reviews 48, no. 17 (2019): 4626–38. http://dx.doi.org/10.1039/c8cs00947c.

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Dissertations / Theses on the topic "Radical cascade"

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Winning, Leonard H. "New Radical Cascade Chemistry." Thesis, University of Oxford, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.494312.

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Rimmington, Stuart. "A radical cascade reaction approach towards Taxol." Thesis, University of Nottingham, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.479330.

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Annis, Michael Colin. "Free radical cascade reactions involving furan rings." Thesis, University of Sussex, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.394991.

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Double, Philip John. "Acyl radical cascade reactions : the synthesis of azasteroids." Thesis, University of Nottingham, 1998. http://eprints.nottingham.ac.uk/27769/.

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Our work has been concerned with the synthesis of azasteroid ring systems, utilising acyl radical cascade reactions. Chapter 1 comprises an overview of published work relevant to our studies: an analysis of steroid biosynthesis and synthesis; a review of the use of azasteroids, their biological activity and current synthetic techniques in azasteroid formation. This initial chapter also includes an introduction to published work in the area of nitrogen heterocycle synthesis using radical reactions and finally the use of acyl radicals in synthesis, particularly cascade reactions. Chapter 2 start

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Boehm, Haydn M. "Tandem radical cascade cyclisation reactions in steroid synthesis." Thesis, University of Nottingham, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364673.

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Demircan, Aydin. "Cascade reactions involving a furan core." Thesis, University of Sussex, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.297561.

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Watson, Faye Charlotte. "Samarium diiodide mediated cascade radical cyclisation of methylenecyclopropane derivatives." Thesis, University of Southampton, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.392663.

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Grant, Seth W. "An Acyl Radical Cascade Model for the Total Synthesis of Lyconadin A." BYU ScholarsArchive, 2005. https://scholarsarchive.byu.edu/etd/759.

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Lyconadin A (1) is a structurally unique Lycopodium alkaloid with antitumor properties, isolated from the club moss Lycopodium complanatum. We are developing a synthetic route to 1 based on a novel 7-exo-trig/6-exo-trig acyl radical cascade cyclization. The synthesis of model acyl radical cascade precursor 23 will be presented. Key features of this synthesis include the suppression of competing elimination during the alkylation of a hindered phenethyl bromide and the use of a lactone as a precursor to a compound bearing two differentially protected primary alcohols. An account of our studies o

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Craft, Russell S. "A radical cascade approach to the skeleton of α−Cyclopiazonic Acid". Thesis, University of Sussex, 2012. http://sro.sussex.ac.uk/id/eprint/39782/.

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3-Nitrophthalic acid 2.04 was transformed into 2.10 in 38% yield. Vinylglycine derivative was synthesised from D-Methionine 2.12 in 42% yield. (For image see abstract in pdf) Compounds 2.10 and 2.16 were coupled using Grubbs' 2nd generation catalyst creating 2.25. Unfortunately attempts to oxidise the benzylic position were unsuccessful. (For image see abstract in pdf) An alternative approach was investigated using diene 2.40 derived from a precursor to 2.10 and allyl bromide 2.35. Attempts to displace bromide under anionic conditions were futile. The use of palladium formed conjugated dieneam

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Lanoix, Stéphanie. "Development of Radical Cascade via Gold(I) Photocatalysis and Application towards One-Pot Bromination/Carbocyclization." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/32062.

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Radical chemistry is a crucial tool to organic chemists. Recent trends in the field have been directed towards the development of photocatalysts capable of generating a radical through a renewable source like sunlight using a single electron transfer mechanism. The use of Au2dppm2Cl2, having a stronger reducing potential, allows an expansion of the reactivity to those achieved by iridium and ruthenium catalysts.1 The focus of this thesis is axed on the development of Au2dppm2Cl2 as an efficient photoredox catalyst for a tandem one-pot catalysis and its application in a dual catalytic system. T

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Books on the topic "Radical cascade"

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Larraufie, Marie-Helene. Development of New Radical Cascades and Multi-Component Reactions. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-01324-4.

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Parlato, Marianna, and Jean-Marc Cavaillon. Innate immunity and the inflammatory cascade. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199600830.003.0299.

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Inflammation results from a complex interaction between a large number of mediators able to induce each other and to favour the generation of other inflammatory molecules (e.g. free radicals, lipid mediators, and proteases). The perpetuation of inflammation by these cascades of mediators is favoured by their ability to induce coagulation, leukocyte recruitment, and cell and tissue alteration (apoptosis, necrosis, and barrier disruption). Other cascades of mediators occur to generate anti-inflammatory mediators favouring the healing process. A neuroendocrine loop and neuromediators from central

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Larraufie, Marie-Helene. Development of New Radical Cascades and Multi-Component Reactions: Application to the Synthesis of Nitrogen-Containing Heterocycles. Springer, 2013.

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Book chapters on the topic "Radical cascade"

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Curran, Dennis P. "Cascade Radical Reactions in Organic Synthesis: An Overview." In ACS Symposium Series. American Chemical Society, 1998. http://dx.doi.org/10.1021/bk-1998-0685.ch004.

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Ni, Enzhi, Minjun Jiang, and Changle Zhou. "Radical Extraction for Handwritten Chinese Character Recognition by Using Radical Cascade Classifier." In Electrical, Information Engineering and Mechatronics 2011. Springer London, 2012. http://dx.doi.org/10.1007/978-1-4471-2467-2_49.

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Larraufie, Marie-Hélène. "Results: Developments of New Radical Cascades with N-Acylcyanamides." In Development of New Radical Cascades and Multi-Component Reactions. Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-01324-4_2.

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Larraufie, Marie-Hélène. "Bibliographical Backgrounds." In Development of New Radical Cascades and Multi-Component Reactions. Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-01324-4_1.

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Larraufie, Marie-Hélène. "Supporting Information." In Development of New Radical Cascades and Multi-Component Reactions. Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-01324-4_3.

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Larraufie, Marie-Hélène. "Bibliographical Backgrounds: Generation of Radicals by Visible Light Photoredox Catalysis." In Development of New Radical Cascades and Multi-Component Reactions. Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-01324-4_4.

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Larraufie, Marie-Hélène. "Results: Visible Light-Induced Photoreductive Generation of Radicals from Epoxides and Aziridines." In Development of New Radical Cascades and Multi-Component Reactions. Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-01324-4_5.

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Larraufie, Marie-Hélène. "Supporting Information." In Development of New Radical Cascades and Multi-Component Reactions. Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-01324-4_6.

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Larraufie, Marie-Hélène. "Bibliographical Background: The Ortho Effect in The Catellani Reaction." In Development of New Radical Cascades and Multi-Component Reactions. Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-01324-4_7.

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Larraufie, Marie-Hélène. "Results: New Partners for Ortho-Substituted Aryl Iodides in Palladium/Norbornene Cocatalysis." In Development of New Radical Cascades and Multi-Component Reactions. Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-01324-4_8.

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Conference papers on the topic "Radical cascade"

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Aalburg, Christian, Ismail Sezal, Christian Haigermoser, Alexander Simpson, Vittorio Michelassi, and Giuseppe Sassanelli. "Annular Cascade for Radial Compressor Development." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-46834.

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A full-annulus cascade for radial compressor stator development has been designed and commissioned. The cascade has been developed for the rapid screening of novel stator concepts to facilitate risk mitigation in the early design phase and the validation/calibration of numerical predictions. The rig consists of two main parts. The first part is comprised of an exchangeable set of stationary preswirl vanes that have been designed to mimic discrete points on the operating characteristic of the impeller. The second part consists of a diffuser, bend and return channel with return channel vanes tha

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Moisel, Christoph, and Thomas H. Carolus. "Radial Lift-Based Cascade for Bi-Directional Wave Energy Air-Turbines." In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-25821.

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Over the last decades various turbine designs have been proposed capable of handling a bi-directional flow in an oscillating water column (OWC) ocean wave power plant. The radial bi-directional lift-based turbine proposed by Kentfield in the early 1980ies is one candidate for power take-off in OWC’s. Key element of this air-turbine is a radial cascade of non-staggered blades made of symmetrical airfoils, with their mean lines geometrically mapped on the rotor’s circumference. The objective of this study is to understand and quantify the performance behavior of an isolated cascade of unstaggere

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Miclea-Bleiziffer, Mihai, Philipp Epple, Henrik Smith, Matthias Semel, and Antonio Delgado. "Application of an Inverse Cascade Analytical and Numerical Design Method Used in the Design of Axial Fans." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-45860.

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This contribution presents an inverse design method for axial flow fans validated by 3-D RANS numerical simulations. It is based on an analytical performance derivation for different free-vortex distributions combined with a mean-line pre-design tool and supported by a new 2-D cascade potential flow computational method. This computes the 2-D planar cascade flow field and the inviscid deflection angle of thin arbitrary shape airfoils at different machine radii followed by a numerical radial integration into a quasi-3-D method. For validation, several fan designs were investigated, showing the

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Bräunling, W., and F. Lehthaus. "Investigations of the Effect of Annulus Taper on Transonic Turbine Cascade Flow." In ASME 1985 Beijing International Gas Turbine Symposium and Exposition. American Society of Mechanical Engineers, 1985. http://dx.doi.org/10.1115/85-igt-64.

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In a test facility for rotating annular cascades with three conical test sections of different taper angles (0°, 30°, 45°), experiments are conducted for two geometrically different turbine cascade configurations, a hub section cascade with high deflection and a tip section cascade with low deflection. The evaluation of time averaged data derived from conventional probe measurements upstream and downstream of the test wheel in the machine-fixed absolute system is based on the assumption of axisymmetric stream surfaces. The cascade characteristics, i.e. mass flow, deflection and losses, for a w

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Petr, Straka. "Calculation of transonic flow in radial turbine blade cascade." In 36TH MEETING OF DEPARTMENTS OF FLUID MECHANICS AND THERMODYNAMICS. Author(s), 2017. http://dx.doi.org/10.1063/1.5004375.

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Schölch, M. "Aerodynamic Design of Pivotable Nozzle Vanes for Radial-Inflow Turbines." In ASME 1992 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1992. http://dx.doi.org/10.1115/92-gt-094.

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In order to improve the efficiency of a radial inflow turbine new inlet guide vanes were developed. The design was the result of iteratively changing the outline of the blade contour and subsequent aerodynamic investigation of the new cascade generated. The procedure consists of four steps: – Conformal transformation of the radial cascade into a straight cascade – Determination of the incompressible inviscid velocity distribution on the blades of the straight cascade by means of a potential flow analysis – Retransformation of velocity distribution and blade geometry into the radial plane – App

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Vivekanand, V., L. Vidya, U. Shyam Kumar, and Deepak Mishra. "Radial basis function cascade network for Sparse signal Recovery (RASR)." In 2014 Twentieth National Conference on Communications (NCC). IEEE, 2014. http://dx.doi.org/10.1109/ncc.2014.6811251.

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Grönman, Aki, Antti Uusitalo, and Jari Backman. "Loss generation in radial outflow steam turbine cascades." In European Conference on Turbomachinery Fluid Dynamics and hermodynamics. European Turbomachinery Society, 2017. http://dx.doi.org/10.29008/etc2017-039.

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Fu, Yunfeng, Fu Chen, Cong Chen, and Yanping Song. "Numerical Study of the Effect of Honeycomb Tip on Tip Leakage Flow in Turbine Cascade." In ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/gt2016-56907.

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A novel leakage flow control strategy with honeycomb seal applied on the tip of the rotor blades in a highly-loaded turbine cascade is proposed. The numerical method is used to study the tip leakage flow in a highly-loaded turbine cascades with flat tip and with honeycomb seal structure, the mechanism of honeycomb tip on inhibiting leakage flow is analyzed, the influence of various relative gap heights is also been investigated. The discussions of the action of the honeycomb-tip structure in reducing leakage flow and improving the turbine efficiency provide the according for control methods of

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Simpson, Alexander, Christian Aalburg, Michael Schmitz, Robbert Pannekeet, Florian Larisch, and Vittorio Michelassi. "Design, Validation and Application of a Radial Cascade for Centrifugal Compressors." In ASME Turbo Expo 2008: Power for Land, Sea, and Air. ASMEDC, 2008. http://dx.doi.org/10.1115/gt2008-51262.

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A novel sector test rig has been used to evaluate a new airfoil concept for multistage radial compressors. The test rig is supported by a blow-down facility where the operation conditions are adjusted by controlling mass flow, pressure and temperature. At inlet to the sector test rig itself a set of adjustable inlet guide vanes provide the test vanes with the correct inlet three-dimensional flow-field. The rig is equipped with instrumentation to allow a detailed description of the inlet and outlet conditions, as well as the blade pressure loading. This rig, using rapid prototyped vanes, allows

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