Relevant bibliographies by topics / [3+2] cycloaddition reactions

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic '[3+2] cycloaddition reactions'

Author: Grafiati
Published: 5 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "[3+2] cycloaddition reactions"

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Grygorenko, Oleksandr O., Viktoriia S. Moskvina, Oleksandr V. Hryshchuk, and Andriy V. Tymtsunik. "Cycloadditions of Alkenylboronic Derivatives." Synthesis 52, no. 19 (2020): 2761–80. http://dx.doi.org/10.1055/s-0040-1707159.

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The literature on cycloaddition reactions of boron-containing alkenes is surveyed with 132 references. The data are categorized according to the reaction type ([2+1], [2+2], [3+2], [4+2], and [4+3] cycloadditions). The cyclopropanation and the Diels–Alder reactions of alkenylboronic derivatives have been studied more or less comprehensively, and for some substrates, they can be considered as convenient methods for the rapid regio- and stereoselective construction of even complex cyclic systems. Other types of the cycloadditions, as well as mechanistic aspects of the processes, have been addres
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Asmita, Mondal, Banerji Avijit, and Acharjee Nivedita. "Understanding [3 + 2] cycloaddition reactions from the molecular electron density perspective : A new theoretical outlook on organic reactions." Education in Chemical Science and Technology Vol. 3, Aug 2022 (2022): 131–50. https://doi.org/10.5281/zenodo.6822007.

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Department of Chemistry, Durgapur Government College, Durgapur-713 214, West Bengal, India Central Ayurveda Research Institute (CARI), Calcutta-700 091, West Bengal, India E-mail: ablabcu@yahoo.co.uk Cycloaddition reactions share the top shelf priority in the toolbox of organic chemists owing to their diverse pharmaceutical and industrial applications. The frontiers molecular orbital (FMO) theory has been used to study the reactivity of cycloaddition reactions since nearly the last five decades, though there have been criticisms, and even instances of failures. In 2016, an appealing alternativ
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Winne, Johan, Jan Hullaert, Bram Denoo, Mien Christiaens, and Brenda Callebaut. "Heterocycles as Moderators of Allyl Cation Cycloaddition Reactivity." Synlett 28, no. 18 (2017): 2345–52. http://dx.doi.org/10.1055/s-0036-1588511.

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For the rapid elaboration of polycarbocyclic scaffolds, prevalent in many important families of terpenoid natural products, allyl cations derived from simple heterocyclic alcohols can be used as versatile reaction partners in both (4+3) and (3+2) cycloaddition pathways. Our recent progress in this area is outlined, pointing towards the untapped potential of heterocycles to act as reagents in novel or known but challenging organic transformations.1 Heterocyclic Reagents2 Cycloadditions and Allyl Cations3 Furfuryl Cations in Cycloadditions4 Heterocycle-Substituted Cations in Cycloadditions5 Mech
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Dresler, Ewa, Aneta Wróblewska, and Radomir Jasiński. "Energetic Aspects and Molecular Mechanism of 3-Nitro-substituted 2-Isoxazolines Formation via Nitrile N-Oxide [3+2] Cycloaddition: An MEDT Computational Study." Molecules 29, no. 13 (2024): 3042. http://dx.doi.org/10.3390/molecules29133042.

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Regioselectivity and the molecular mechanism of the [3+2] cycloaddition reaction between nitro-substituted formonitrile N-oxide 1 and electron-rich alkenes were explored on the basis of the wb97xd/6-311+G(d) (PCM) quantum chemical calculations. It was established that the thermodynamic factors allow for the formation of stable cycloadducts along all considered models. The analysis of the kinetic parameters of the main processes show that all [3+2] cycloadditions should be realized with full regioselectivity. In all cases, the formation of 5-substituted 3-nitro-2-isoxazolidines is clearly prefe
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Harmata, Michael, and Aswin Garimalla. "Derivatives of Alkyl 2-Hydroxy-3-oxocyclopent-1-enecarboxylates and Intermolecular [4+2] Cycloadditions of Cyclopentadienones Prepared Therefrom." Synthesis 50, no. 22 (2018): 4483–89. http://dx.doi.org/10.1055/s-0037-1610184.

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Some derivatives of alkyl 2-hydroxy-3-oxocyclopent-1-enecarboxylates have been synthesized and their reactivity as progenitors of cyclopentadienones for intermolecular [4+2]-cycloaddition reactions has been evaluated. It was found that the derivative containing a phosphate ester leaving group gave better yields in the cycloaddition reaction among the derivatives studied. The yields of the cycloaddition reactions were moderate, perhaps due side reactions not leading to the reactive intermediate cyclopentadienone.
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Deng, Yongming, Qing-Qing Cheng, and Michael Doyle. "Asymmetric [3+3] Cycloaddition for Heterocycle Synthesis." Synlett 28, no. 14 (2017): 1695–706. http://dx.doi.org/10.1055/s-0036-1588453.

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Asymmetric syntheses of six-membered ring heterocycles are important research targets not only in synthetic organic chemistry but also in pharmaceuticals. The [3+3]-cycloaddition methodology is a complementary strategy to [4+2] cycloaddition for the synthesis of heterocyclic compounds. Recent progress in [3+3]-cycloaddition processes provide powerful asymmetric methodologies for the construction of six-membered ring heterocycles with one to three heteroatoms in the ring. In this account, synthetic efforts during the past five years toward the synthesis of enantioenriched six-membered ring hete
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Li, Jin-Heng, De-Lie An, and Jing-Hao Qin. "Recent Advances in Cycloaddition Reactions with Alkynes to Construct Heterocycles." Synthesis 52, no. 24 (2020): 3818–36. http://dx.doi.org/10.1055/s-0040-1707355.

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Heterocyclic compounds, especially N-heterocycles and O-heterocycles, are prominent structural motifs present in numerous natural products and medically and/or economically important compounds. This review aims to describe the development of transition-metal-catalyzed cycloaddition reactions of functionalized m-atom partners with alkynes to access a wide range of five-, six-, and seven-membered heterocycles, that is functionalized N-heterocycles and O-heterocycles such as azepines, isoquinolines, isocoumarins, spiroheterocycles, indoles, furans, and pyrroles, in a selectively controlled manner
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Sikervar, Vikas, Ravindra Sonawane, Raghuramaiah Mandadapu, Amol Satish Dehade, Shrikant Abhiman Shete, and Mark Montgomery. "Lewis Acid Mediated [3+2] and [3+3] Annulations of an Azomethine Imine with Donor–Acceptor Cyclopropanes." Synthesis 53, no. 16 (2021): 2865–73. http://dx.doi.org/10.1055/a-1503-8068.

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AbstractTwo different Lewis acids were used for developing [3+2] and [3+3] regioselective cycloaddition reactions of an azomethine imine with activated cyclopropanes. Scandium(III) triflate catalyzes a [3+2] cycloaddition reaction of the azomethine imine with cyclopropanes to form tetrahydropyrazolone derivatives and tricyclic tetrahydrofuran derivatives in moderate yields. Complementary to this, a novel [3+3] cycloaddition reaction of the azomethine imine with activated cyclopropanes was developed by using EtAlCl2 as a Lewis acid to form hexahydropyridazinone derivatives in high regioselectiv
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Zhang, Xiaofeng, Xiaoming Ma, and Wei Zhang. "Decarboxylative 1,3-dipolar cycloaddition of amino acids for the synthesis of heterocyclic compounds." Beilstein Journal of Organic Chemistry 19 (November 6, 2023): 1677–93. http://dx.doi.org/10.3762/bjoc.19.123.

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The [3 + 2] cycloadditions of stabilized azomethine ylides (AMYs) derived from amino esters are well-established. However, the reactions of semi-stabilized AMYs generated from decarboxylative condensation of α-amino acids with arylaldehydes are much less explored. The [3 + 2] adducts of α-amino acids could be used for a second [3 + 2] cycloaddition as well as for other post-condensation modifications. This article highlights our recent work on the development of α-amino acid-based [3 + 2] cycloaddition reactions of N–H-type AMYs in multicomponent, one-pot, and stepwise reactions for the synthe
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Li, Hui, Russell P. Hughes, and Jimmy Wu. "Dearomative Indole (3 + 2) Cycloaddition Reactions." Journal of the American Chemical Society 136, no. 17 (2014): 6288–96. http://dx.doi.org/10.1021/ja412435b.

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Dissertations / Theses on the topic "[3+2] cycloaddition reactions"

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Allart, Eric A. "Metal-promoted [3+2] and [4+2] cycloaddition reactions." Thesis, Loughborough University, 2008. https://dspace.lboro.ac.uk/2134/33615.

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Dicobalt complexes have been extensively used in synthetic chemistry to protect triple bonds, to form new carbon/carbon bonds using the Nicholas reaction and to form polycyclic molecules using the Pauson-Khand reaction. Using these dicobalt complexes, the formation of new carbon-heteroatom bonds was developed through [3+2] and [4+2] cycloaddition reactions via a stabilised dipole intermediate. Initial work carried out makes use of cyclopropanes substituted with a metal-alkyne complex towards the synthesis of tetrahydrofurans and pyrrolidines in good yields and with acceptable diastereoselectiv
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Allen, Jacqueline Y. "Asymmetric [3+2] cycloaddition reactions : new chemistry for solid phase." Thesis, Kingston University, 2003. http://eprints.kingston.ac.uk/20709/.

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The aim of this project was to investigate new asymmetric chemistry for solid phase syntheses where in comparison to solution phase reactions very few solid phase reactions are in general use. The first part of the project involved the synthesis and radical cleavage of a Barton ester to provide a traceless linker on the final reaction product. The synthesis of the Barton ester from benzoylglycine was not successful as the acid chloride derivative of benzolyglycine appeared to undergo a facile cyclisation reaction. In contrast the acid chlorides of both indole-3-acetic acid and N-methylindole-3
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Ahmed, Awais. "[4+2] and [4+3] cycloaddition reactions and Lewis acid catalysed cycloisomerisation of malonyl epoxides." Thesis, Loughborough University, 2003. https://dspace.lboro.ac.uk/2134/12572.

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Donor-acceptor cyclopropanes have been extensively used in synthetic chemistry in [3+2] and [3+3] cycloaddition reactions for the preparation of highly substituted carbo- and heterocyclic products. This methodology is further extended to donor-acceptor cyclobutane in [4+2] and [4+3] cycloaddition reactions for the synthesis of highly substituted carbo- and heterocyclic products. Initial work carried out makes use of cyclobutanes substituted with a metal-alkyne complex towards the synthesis of tetrahydropyrans in good yields and with acceptable diastereoselectivity. The initial aim of the proje
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Jha, Jay Shankar. "[3+2] Cycloaddition Reaction of Gem-Dicyanoepoxide and Electrophilic Reaction of Ethyl Atropate." Thesis, Southern Illinois University at Edwardsville, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=1545300.

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<p> The epoxide-olefin [3+2] cycloaddition reaction is an important tool in synthesizing heterocyclic five member rings. Such cyclic compounds are well known for the formation of biologically active compounds. In this experiment, we developed a method for a [3+2] cycloaddition reaction between gem-dicyano phenyl epoxide and diethyl (E)-2-fluoromaleate to synthesize 2, 2-dicyano-3, 4-diethoxycarbonyl-4-fluoro-5-phenylfuran. The yield of the product was 55.56 %. </p><p> Fluorine is small in size and is the most electronegative element. These properties of fluorine make its incorporation into
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Dzwiniel, Trevor L. "Seven-membered carbocycle synthesis by cobalt-mediated [3 + 2 + 2] allyl/alkyne cycloaddition reactions and novel [5 + 2] cyclopentadiene/alkyne ring expansions." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0033/NQ46833.pdf.

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Griffin, Karen. "Lewis acid-promoted (3+2) cycloadditions and multi-component reactions of methyleneaziridines." Thesis, University of Warwick, 2011. http://wrap.warwick.ac.uk/45241/.

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This thesis describes our attempts towards realising new chemistry involving methyleneaziridines, for the main part, focusing on novel cycloaddition reactions involving this unique, densely functionalised heterocycle. Contrary to methyleneaziridines, the cycloaddition reactions of aziridines have been extensively studied. Thus, chapter one presents an introduction and literature review of cycloaddition reactions involving the aziridine nucleus, in order to contextualise the research described in chapter two. Chapter two describes the discovery and development of a novel Lewis acidpromoted (3+2
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PAPARIN, JEAN-LAURENT. "Developpement des reactions de cycloaddition 4 + 2 et 4 + 3 pour la preparation d'heterocycles azotes originaux utilisables en chimie combinatoire." Rennes 1, 1999. http://www.theses.fr/1999REN10192.

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Le travail presente dans ce memoire concerne la synthese de nouveaux scaffolds utilisables en chimie combinatoire. Une etude de la reaction d'aza diels-alder thermique de 1,4-bis aryl-2-aza-1,3-butadienes et de dienophiles deficients en electron a ete realisee. Les 2,5-bis aryl-pyridines cibles ont ete obtenues avec des rendements modestes. Une reaction competitive de dimerisation de l'azadiene a ete mise en evidence dans certains cas. Une etude de la reaction de cycloaddition 4 + 3 de diverses ,'-dibromocetones avec le n-carbomethoxypyrrole puis le n-carbomethoxy-2-(1',3'-dioxolan-2'-yl)-pyrr
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Liang, Shengwen. "Nitrene Transfer Reactions Mediated by Transition Metal Scorpionate Complexes." Ohio University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1339005115.

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Salt, Michael C. "A kinetic and mechanistic investigation of phosphonium salt hydrolysis and synthetic studies on the cycloaddition reactions of 2-(3-chloropropenyl) phosphonic dichloride." Thesis, Staffordshire University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387482.

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Rodier, Fabien. "Nouvel accès chimio-, régio- et stéréosélectif aux motifs spirolactones polycycliques via une réaction de cycloaddition [3+2]." Thesis, Aix-Marseille, 2012. http://www.theses.fr/2012AIXM4324.

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Le système spirocyclique (7,5) est un motif récurrent dans un certain nombre de produits naturels tels que les Micrandilactones ou les Rubriflordilactones. Ces structures polycycliques représentent un réel défi synthétique pour les chimistes organiciens puisqu'elles présentent au moins neuf centres stéréogènes dont plusieurs sont quaternaires. L'objectif principal de ce travail était de développer de nouvelles réactions de cycloaddition [3+2] et de les utiliser comme étape clé afin d'obtenir rapidement et efficacement le squelette polycylique de ces composés. La première partie de ces travaux
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Books on the topic "[3+2] cycloaddition reactions"

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Joseph Johannes Gerardus Steven van Es. 1, 3-cycloaddition reactions of diphenylphosphinoyl-activated azomethine ylides and 2-azaallyl anions: Synthetic applications and mechanistic aspects. Pasmans Offsetdrukkerij BV, 1992.

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Woolford, Jason A. The Double [3+2] Photocycloaddition Reaction. Springer-Verlag Berlin Heidelberg, 2011.

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Ikhlef, Fatima. Routes to 4-aryl-1-N-methylanilinobut-3-en-2-ones and reactions of 2-phenylethylamine. University of Salford, 1985.

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Paetz gen. Schieck, Hans. Nuclear Reactions. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-53986-2.

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Li, Jie Jack. Name Reactions. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-662-05336-2.

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Schopper, H., ed. Tables of Excitations from Reactions with Charged Particles. Part 3: Z = 63 - 99. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-48701-2.

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Schopper, H., ed. Tables of Excitations from Reactions with Charged Particles. Part 2: Z = 37 - 62. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-44713-9.

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Bui, Eric, ed. Clinical Handbook of Bereavement and Grief Reactions. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-65241-2.

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Kurowski, Michael, ed. Adverse Reactions to Non-Steroidal Anti-Inflammatory Drugs: Clinical Pharmacoepidemiology. Birkhäuser Basel, 1992. http://dx.doi.org/10.1007/978-3-0348-5722-2.

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Woolford, Jason A. The Double [3+2] Photocycloaddition Reaction. Springer, 2011.

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Book chapters on the topic "[3+2] cycloaddition reactions"

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Hayashi, Yujiro, and Koichi Narasaka. "[2+2] Cycloaddition Reactions." In Comprehensive Asymmetric Catalysis I–III. Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-58571-5_10.

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Halevi, E. Amitai. "Cycloadditions and Cycloreversions I. [2+2]-Cycloaddition." In Orbital Symmetry and Reaction Mechanism. Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-642-83568-1_6.

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Baiazitov, Ramil Y., and Scott E. Denmark. "Tandem [4+2]/[3+2] Cycloadditions." In Methods and Applications of Cycloaddition Reactions in Organic Syntheses. John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118778173.ch16.

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Firooznia, Fariborz, Robert F. Kester, and Steven J. Berthel. "[2+2], [3+2] and [2+2+2] Cycloaddition Reactions of Indole Derivatives." In Topics in Heterocyclic Chemistry. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/7081_2010_53.

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Takagi, Ryukichi, and Manabu Abe. "[3+2] Cycloaddition of α,β-Unsaturated Metal-Carbene Complexes." In Methods and Applications of Cycloaddition Reactions in Organic Syntheses. John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118778173.ch05.

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Hein, Jason E. "[3+2]-Dipolar Cycloadditions in Bioconjugation." In Chemoselective and Bioorthogonal Ligation Reactions. Wiley-VCH Verlag GmbH & Co. KGaA, 2017. http://dx.doi.org/10.1002/9783527683451.ch2.

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Amblard, Franck, Ozkan Sari, Sebastien Boucle, Ahmed Khalil, and Raymond F. Schinazi. "Modifications of Nucleosides, Nucleotides, and Nucleic Acids using Huisgen's [3+2] Azide-Alkyne Cycloaddition: Opening Pandora's Box." In Click Reactions in Organic Synthesis. Wiley-VCH Verlag GmbH & Co. KGaA, 2016. http://dx.doi.org/10.1002/9783527694174.ch10.

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Werner, H. "Novel Metalla-Heterocycles Formed By [3+2], [2+2], and [2+3] Cycloaddition Reactions of Cyclopentadienyl Cobalt and Rhodium Complexes." In Organometallics in Organic Synthesis. Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-73196-9_3.

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Dinda, Biswanath. "Cycloaddition Reactions." In Lecture Notes in Chemistry. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-45934-9_3.

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Li, Jie Jack. "Staudinger ketene cycloaddition." In Name Reactions. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-03979-4_259.

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Conference papers on the topic "[3+2] cycloaddition reactions"

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Mangalagiu, Violeta, Dorina Amariucai-Mantu, Dumitrela Diaconu, Vasilichia Antoci, and Ionel Mangalagiu. "MICROWAVE AND ULTRASOUND ASSISTED SYNTHESIS AS ECOLOGICALLY FRIENDLY METHODS IN NITROGEN HETEROCYCLIC CHEMISTRY." In SGEM International Multidisciplinary Scientific GeoConference. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024v/6.2/s23.04.

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On the last few years, microwave and ultrasound irradiation has become a successful tool in modern medicinal and organic chemistry especially (but not only) because in many cases synthesis became ecologically friendly. As part of our ongoing efforts in the field of nitrogen heterocyclic derivatives, we present herein some core results obtained by our group in the field of N-alkylation and 3+2 cycloadditions reactions applied in the nitrogen heterocycles series, by using microwave and ultrasound irradiation. Comparative with conventional thermal heating, undeniable advantages of using microwave
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Marliyana, Soerya Dewi, Maulidan Firdaus, Muhamad Widyo Wartono, Diana Inas Utami, and Uly Wulan Apriani. "Evaluation of the Antibacterial Activity of Pinostrobin Derivative Compounds from Ethylation and Allylation Reactions." In 8th International Conference on Advanced Material for Better Future. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-s3ucax.

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Temu Kunci (Kaempferia pandurata Roxb.) is one of the plants from the Zingiberaceae family that contains secondary metabolites derived from flavonoids. Studies on the bioactivity of flavonoid compounds from this species have shown various biological activities such as antibacterial, antioxidant, antiviral, antitumor, antipyretic, anti-inflammatory, analgesic, and insecticidal properties. Pinostrobin (5-hydroxy-7-methoxy flavanone) (1) is the major flavonoid found in the rhizomes of this plant and has been successfully derivatized through ethylation and allylation reactions. Two compounds were
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Abbasi, Hamid Reza, Masoud Babaei, and Constantinos Theodoropoulos. "Multiscale Modeling of Internal Reforming in Solid Oxide Fuel Cells: A Study of Electrode Morphology and Gradient Microstructures." In The 35th European Symposium on Computer Aided Process Engineering. PSE Press, 2025. https://doi.org/10.69997/sct.188842.

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This work presents a comprehensive multiscale model for Solid Oxide Fuel Cells (SOFCs), integrating microscale and macroscale simulations to analyze internal reforming and its impact on overall cell performance. The microscale model [1], [2] captures the intricate mass and charge transport phenomena at the pore scale of porous electrodes, resolving electrochemical reactions at the triple-phase boundaries and modeling chemical reactions at pore spaces. Simultaneously, the macroscale model provides a broader view of the entire cell's behavior by solving the same transport equations on a coarser
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Growcock, F. B. "Inhibition of Steel Corrosion in Hydrochloric Acid by Acetylenic Alcohols." In CORROSION 1988. NACE International, 1988. https://doi.org/10.5006/c1988-88338.

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Abstract We have elucidated the mechanisms by which some aliphatic and aromatic acetylenic alcohols inhibit corrosion of steel in hydrochloric acid. Corrosion kinetics, electrochemical measurements and product analyses of systems containing l-octyn-3-ol, 3-phenyl-2-propyn-1-ol (3-PPO) and 1-phenyl-2-propyn-1-ol (1-PPO) indicate that, in all cases, the active inhibitor is first protonated, reversibly adsorbs and then undergoes irreversible reactions to form a polymer film. The chemisorbed inhibitor provides the majority of the corrosion protection, but the polymer film offers some protection as
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Diaconu, Dumitrela, Violeta Mangalagiu, Dorina Amariucai-Mantu, Vasilichia Antoci, Ramona Danac, and Ionel Mangalagiu. "1,3-dipolar cycloaddition reactions of benzimidazolium-ylides to an activated symmetric alkyne." In Scientific seminar with international participation "New frontiers in natural product chemistry". Institute of Chemistry, Republic of Moldova, 2023. http://dx.doi.org/10.19261/nfnpc.2023.ab27.

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The cycloaddition reactions represent an important way to obtain cyclic structures and take place between two or more reactants containing double or triple bonds in the molecule. After Huisgen, the addition of 1,3-dipole to a dipolarophile, takes place through a concerted mechanism, when two  bonds are formed. [1,2] The purpose of this research is to study the Huisgen [3+2] dipolar cycloaddition reactions carried out in a conventional way (stirring at room temperature) and non-conventional way (ultrasonic irradiation), between benzimidazolium-ylides and an activated symmetric substituted alky
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Ramasami, Ponnadurai, Hanusha Bhakhoa, and Lydia Rhyman. "Copper(I) Catalyzed [3+2] Cycloaddition Reaction with Mechanistic Disparity: A DFT Study." In The 17th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2013. http://dx.doi.org/10.3390/ecsoc-17-e017.

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Zbancioc, Gheorghita, Costel Moldoveanu, and Ionel I. Mangalagiu. "Syntheses of new benzoquinoline derivatives with anticancer activity." In Conferința științifică națională cu participare internațională "Integrare prin cercetare și inovare", dedicată Zilei Internaționale a Științei pentru Pace și Dezvoltare. Moldova State University, 2025. https://doi.org/10.59295/spd2024n.92.

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This work synthesized various novel benzo[c]quinoline compounds, detailed their structural features, and examined their anticancer activity in vitro. First, the nitrogen atom in benzo[c]quinoline is quaternized, and the in situ-formed ylide is then subjected to a [3+2] dipolar cycloaddition reaction. A detailed investigation was conducted to determine how successful traditional thermal heating (TH) synthesis was in comparison to microwave (MW) and ultrasonic (US) irradiation. FTIR, HRMS, and NMR were the three spectral techniques that were used to prove the structure of all the obtained compou
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Mancini, Pedro, Claudia Della Rosa, and Maria Kneeteman. "Behaviour of 2-nitroheterocycles in Cycloaddition Reactions." In The 9th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2005. http://dx.doi.org/10.3390/ecsoc-9-01477.

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Momo, Patrícia B., Ricardo B. Ayres, Timothy J. Brocksom, and Kleber T. de Oliveira. "1,3-Dipolar Cycloaddition Reactions of meso-Tetra(2’- thienyl)porphyrins with a Nitrile Oxide." In 15th Brazilian Meeting on Organic Synthesis. Editora Edgard Blücher, 2013. http://dx.doi.org/10.5151/chempro-15bmos-bmos2013_201391291318.

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Elzagheid, Mohamed I., Kati Mattila, Mikko Oivanen, Bryan C. N. M. Jones, Richard Cosstick, and Harri Lönnberg. "Hydrolytic reactions of 2',3'-dideoxy-3'-thiothymidine 3',5'-cyclic phosphorothiolate methyl ester." In XIth Symposium on Chemistry of Nucleic Acid Components. Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, 1999. http://dx.doi.org/10.1135/css199902225.

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Reports on the topic "[3+2] cycloaddition reactions"

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Burley, J. D. Part 1: Kinetic energy dependencies of selected ion-molecule reactions; Part 2: Photochemistry of (FSO sub 3 ) sub 2 , FSO sub 3 , and FNO. Office of Scientific and Technical Information (OSTI), 1991. http://dx.doi.org/10.2172/5053164.

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Setser, D. Reactions of N sub 2 (A sup 3. Sigma. sub u sup + ) and candidates for short wavelengths lasers. Office of Scientific and Technical Information (OSTI), 1990. http://dx.doi.org/10.2172/7029996.

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Wuu, Yee-Min, and Mark S. Wrighton. Thermal Reactions of Ru(CO)3(C2H4)2 with Acyclic, Non-Conjugated Dienes and Photochemistry of Ru(CO)4(eta(2)-diene) Complexes. Defense Technical Information Center, 1988. http://dx.doi.org/10.21236/ada198023.

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Wuu, Yee-Min, and Mark S. Wrighton. Thermal Reactions of RuCO)3(C2H4)2 with Acrylic, Non-Conjugated Dienes and Photochemistry of Ru(CO)4(eta squared-diene) Complexes. Defense Technical Information Center, 1988. http://dx.doi.org/10.21236/ada197944.

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Setser, D. W. Reactions of N/sub 2/(A/sup 3/SIGMA/sub u//sup +/) and candidates for short wavelength lasers, March 1, 1984-February 28, 1985. Office of Scientific and Technical Information (OSTI), 1987. http://dx.doi.org/10.2172/5545397.

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Turner, Paul. Using NHS Data to Monitor Trends in the Occurrence of Severe, Food-Induced Allergic Reactions Work Package 2. Food Standards Agency, 2024. http://dx.doi.org/10.46756/sci.fsa.vji996.

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People with food allergies may experience food allergic reactions due to accidental exposure. These reactions are commonly categorised as non-severe, fatal food anaphylaxis and near-fatal food anaphylaxis. Non-severe allergic reactions to food are more common with an incidence of up to 1,000 times greater than fatal food-related anaphylaxis. However, obtaining accurate data relating to the circumstances under which these reactions occurred is challenging under the current diagnosis coding system used in the National Health Service (NHS). This project addressed two key questions: What are the t
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Turner, Paul, Alessia Baseggio Conrado, and Jennifer Quint. Using NHS Data to Monitor Trends in the Occurrence of Severe, Food-Induced Allergic Reactions Work Package 1. Food Standards Agency, 2024. http://dx.doi.org/10.46756/sci.fsa.lvn457.

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People with food allergies may experience food allergic reactions due to accidental exposure. These reactions are commonly categorised as non-severe, fatal food anaphylaxis and near-fatal food anaphylaxis. Non-severe allergic reactions to food are more common with an incidence of up to 1,000 times greater than fatal food-related anaphylaxis. However, obtaining accurate data relating to the circumstances under which these reactions occurred is challenging under the current diagnosis coding system used in the National Health Service (NHS). This project addressed two key questions: What are the t
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Aimes, Ashley, Steven Ginnis, Cameron Garrett, and Elena Di Antonio. Developing rapid and effective communications testing: background and methodology. Food Standards Agency, 2023. http://dx.doi.org/10.46756/sci.fsa.quz737.

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In November 2021, the Food Standards Agency (FSA) commissioned Ipsos to build on previous research and guidance to establish a process to rapidly test communication pieces. We achieved this by piloting different survey tools and testing existing communication pieces. The FSA wanted to identify features that make their communications most effective. This report presents the learnings from the pilot, which can be used to aid the development of future communications. This report is split into five sections: 1 Executive summary 2 How the pieces of communication landed: including initial reactions
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Codex Subgroup, Committee on Toxicity. Assessment of the Codex report on food allergen thresholds. Food Standards Agency, 2023. http://dx.doi.org/10.46756/sci.fsa.rif459.

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At the 45th session of the Codex Committee on Food Labelling (CCFL) held in May 2019, the FAO and WHO were asked to provide scientific advice on the following subjects by establishing an ad hoc Joint FAO/WHO Expert Consultation on Risk Assessment of Food Allergens: Validation of Codex’s priority allergen list through risk assessment. Threshold levels in foods of the priority allergens. Appropriate use of precautionary allergen labelling (PAL). Review and establish exemptions for the food allergens. 2. The summary and conclusions report on threshold levels was published in August 2021, and the
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Peng, Ciyan, Jing Chen, Sini Li, and Jianhe Li. Comparative Efficacy of Chinese Herbal Injections Combined Western medicine for Non-small cell lung cancer: A Bayesian Network Meta-Analysis of randomized controlled trials. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2021. http://dx.doi.org/10.37766/inplasy2021.11.0068.

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Review question / Objective: Advanced lung cancer has become the top malignant tumor in terms of morbidity and mortality, and Chinese herbal injections combined with western drugs have been widely used to treat advanced non-small cell lung cancer. For this purpose, we conducted a Bayesian network analysis to systematically evaluate the efficacy of different herbal injections combined with western drugs in the treatment of NSCLC. Subjects: Patients diagnosed with NSCLC by pathological or cytological examination, locally advanced or those who refused surgical treatment were included, regardless
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