Relevant bibliographies by topics / Mechanism of Cyclization

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Mechanism of Cyclization'

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

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Mechanism of Cyclization.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Mechanism of Cyclization"

1

Macháček, Vladimír, Gabriela Svobodová, and Vojeslav Štěrba. "Kinetics and mechanism of base-catalyzed cyclization of substituted amides and nitriles of hydantoic acid." Collection of Czechoslovak Chemical Communications 52, no. 1 (1987): 140–55. http://dx.doi.org/10.1135/cccc19870140.

Full text
Abstract:
Rates of base-catalyzed cyclizations of 8 substituted derivatives of hydantoic acid amide type R3-NH(5)-CO(4)-NR2(3)-CH2(2)-CO(1)-NHR1 and 9 nitriles type R3-NH(5)-CO(4)-NR2(3)-CHR1(2)-CN have been measured in aqueous and methanolic media. The cyclization of the amides in aqueous medium is also accompanied by hydrolysis of the hydantoins formed. In some cases the hydrolysis rate constant is greater than the corresponding cyclization reaction rate constant. With the least reactive amides, the cyclization is also accompanied by hydrolysis of the amide group. The rate of the cyclization reactions
APA, Harvard, Vancouver, ISO, and other styles
2

Guosheng Wang, Guosheng Wang, and Siyu Han and Ronghui Xu Siyu Han and Ronghui Xu. "The Ring Formation Mechanism in Cyclization of Berberine." Journal of the chemical society of pakistan 43, no. 3 (2021): 308. http://dx.doi.org/10.52568/000578/jcsp/43.03.2021.

Full text
Abstract:
Berberine hydrochloride is a natural alkaloid with significant antitumor activities against many types of cancer cells, can be synthesized by cyclic reaction with hydrochloride condensate and glyoxal as raw materials and copper chloride as catalyst. In this study, the transition and energy change for the each reaction step was calculated by the density functional theory program Dmol3 in Materials Studio 2017. and the results testified that there are two ring formation in the cycliztion process, and according to the result we proposed the mechanism of this cyclization reaction. We also use infr
APA, Harvard, Vancouver, ISO, and other styles
3

Guosheng Wang, Guosheng Wang, and Siyu Han and Ronghui Xu Siyu Han and Ronghui Xu. "The Ring Formation Mechanism in Cyclization of Berberine." Journal of the chemical society of pakistan 43, no. 3 (2021): 308. http://dx.doi.org/10.52568/000578.

Full text
Abstract:
Berberine hydrochloride is a natural alkaloid with significant antitumor activities against many types of cancer cells, can be synthesized by cyclic reaction with hydrochloride condensate and glyoxal as raw materials and copper chloride as catalyst. In this study, the transition and energy change for the each reaction step was calculated by the density functional theory program Dmol3 in Materials Studio 2017. and the results testified that there are two ring formation in the cycliztion process, and according to the result we proposed the mechanism of this cyclization reaction. We also use infr
APA, Harvard, Vancouver, ISO, and other styles
4

Reissig, Hans-Ulrich, and Reinhold Zimmer. "Cyclizations of Alkoxyallenes: Mechanisms, Intermediates, ­Products – A Personal Account on Solved and Unsolved Problems with Unique Allene Building Blocks." Synthesis 49, no. 15 (2017): 3291–302. http://dx.doi.org/10.1055/s-0036-1588846.

Full text
Abstract:
The additions of lithiated alkoxyallenes to electrophiles, such as carbonyl compounds, thioketones, imines, and nitrones, provide the expected primary addition products. These alkoxyallene intermediates undergo ring-closure reactions under quite different conditions. Whereas allenyl hydroxylamine derivatives spontaneously cyclize to 1,2-oxazine derivatives, the related allenyl amines, thiols, and alcohols require, with distinct exceptions, promotion by acids, base, silver(I), or gold(I). The different mechanisms of these processes are discussed in this account. The serendipitous discovery of a
APA, Harvard, Vancouver, ISO, and other styles
5

Butt, Smaher E., Konrad Kepski, Jean-Marc Sotiropoulos, and Wesley J. Moran. "Hypervalent iodine-mediated cyclization of bishomoallylamides to prolinols." Beilstein Journal of Organic Chemistry 20 (September 30, 2024): 2455–60. http://dx.doi.org/10.3762/bjoc.20.209.

Full text
Abstract:
A change in mechanism was observed in the hypervalent iodine-mediated cyclization of N-alkenylamides when the carbon chain between the alkene and the amide increased from two to three atoms. In the latter case, cyclization at the amide nitrogen to form the pyrrolidine ring was favored over cyclization at the amide oxygen. A DFT study was undertaken to rationalize the change in mechanism of this cyclization process. In addition, reaction conditions were developed, and the scope of this cyclization studied.
APA, Harvard, Vancouver, ISO, and other styles
6

Chen, Nanhao, Shenglong Wang, Lidia Smentek, B. Andes Hess, and Ruibo Wu. "Biosynthetic Mechanism of Lanosterol: Cyclization." Angewandte Chemie International Edition 54, no. 30 (2015): 8693–96. http://dx.doi.org/10.1002/anie.201501986.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Chen, Nanhao, Shenglong Wang, Lidia Smentek, B. Andes Hess, and Ruibo Wu. "Biosynthetic Mechanism of Lanosterol: Cyclization." Angewandte Chemie 127, no. 30 (2015): 8817–20. http://dx.doi.org/10.1002/ange.201501986.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Pytela, Oldřich, and Zdeněk Bahník. "Synthesis, kinetics and mechanism of cyclization of 1-(2-aryloxycarbonylphenyl)-3-phenyltriazenes." Collection of Czechoslovak Chemical Communications 55, no. 11 (1990): 2692–700. http://dx.doi.org/10.1135/cccc19902692.

Full text
Abstract:
Twelve substituted 1-(2-aryloxycarbonylphenyl)-3-phenyltriazenes have been synthetized and kinetics of their reactions have been measured in 52.1% (by mass) aqueous methanol at pH 3 to 11. Plots of kobs vs pH show three regions: noncatalyzed cyclization (pH 4 to 7), acid-catalyzed splitting of the triazene chain, and base-catalyzed cyclization. The non-catalyzed cyclization exhibits a kinetic isotope effect, the reaction constant ρ = 2.69 (σ-p), and β1g = 1.02, which indicates a mechanism of E1cB type with intramolecular proton transfer and a transient formation of a ketene intermediate. The b
APA, Harvard, Vancouver, ISO, and other styles
9

Deng, Danfeng, Dayun Huang, Xiangyu Sun, and Biwen Gao. "Recent Advances in the Tandem Difunctionalization of Alkynes: Mechanism-Based Classification." Synthesis 53, no. 19 (2021): 3522–34. http://dx.doi.org/10.1055/a-1486-2158.

Full text
Abstract:
AbstractRecent advances on the tandem difunctionalization of alkynes in the last decade (2010–2020) are summarized into five categories based on the type of mechanism: (1) radical addition and coupling for the synthesis of polysubstituted ketones and alkenes, (2) electrophilic addition of alkynes, (3) reactions mediated by haloalkynes or copper acetylides, (4) the preparation of cyclic compounds via radical processes, palladium-catalyzed reactions or conjugate additions, and (5) cyclic compounds as intermediates in ring openings. Herein, radical, electrophilic and nucleophilic reactions are di
APA, Harvard, Vancouver, ISO, and other styles
10

Pinta, Violaine, Martine Picaud, Françoise Reiss-Husson, and Chantal Astier. "Rubrivivax gelatinosus acsF (Previously orf358) Codes for a Conserved, Putative Binuclear-Iron-Cluster-Containing Protein Involved in Aerobic Oxidative Cyclization of Mg-Protoporphyrin IX Monomethylester." Journal of Bacteriology 184, no. 3 (2002): 746–53. http://dx.doi.org/10.1128/jb.184.3.746-753.2002.

Full text
Abstract:
ABSTRACT This study describes the characterization of orf358, an open reading frame of previously unidentified function, in the purple bacterium Rubrivivax gelatinosus. A strain in which orf358 was disrupted exhibited a phenotype similar to the wild type under photosynthesis or low-aeration respiratory growth conditions. In contrast, under highly aerated respiratory growth conditions, the wild type still produced bacteriochlorophyll a (Bchl a), while the disrupted strain accumulated a compound that had the same absorption and fluorescence emission spectra as Mg-protoporphyrin but was less pola
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Mechanism of Cyclization"

1

Huguet, i. Subiela Núria. "Exploring new gold-catalyzed cyclization reactions of 1,5-enynes and development of an intermolecular phenol synthesis." Doctoral thesis, Universitat Rovira i Virgili, 2013. http://hdl.handle.net/10803/108959.

Full text
Abstract:
Las sales de oro se han convertido en uno de los catalizadores por excelencia en una gran variedad de transformaciones orgánicas mediante la activación selectiva de alquinos, alenos y alquenos. Parte del trabajo de esta tesis doctoral se ha centrado en el estudio de la naturaleza carbénica o carbocatiónica de los intermedios de reacción presentes en las cicloisomerizaciones de 1,5-eninos catalizadas por complejos de oro. De esta forma se han desarrollado distintas metodologías de ciclación dando lugar a diferentes productos tricíclicos a partir de oxo-1,5-eninos o 1,5-bencileninos. Ademá
APA, Harvard, Vancouver, ISO, and other styles
2

Navale, G. R. "Improved production of epi-cedrol and santalene by fusion protein expression: Stability study and cyclization mechanism of epi-cedrol biosynthesis." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 2021. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/5904.

Full text
Abstract:
A wide range of secondary metabolites are produced by living organisms such as plants, bacteria and fungi as a part of their defense system against herbivores, pests and pathogens etc. Isoprenoids often called as terpenoids, are the most abundant and highly diverse family of natural organic compounds. In Plants, they plays a diverse part in photosynthetic pigments, hormones, electron carrier, structural components of membrane, as well as an important role in communication and defense. Many isoprenoids have useful applications in the pharmaceutical, nutraceutical, and chemical industries
APA, Harvard, Vancouver, ISO, and other styles
3

Warner, Benjamin Peter. "Mechanisms of metal-mediated cyclizations." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/36008.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Hancock, Amber N. "A Radical Approach to Syntheses and Mechanisms." Diss., Virginia Tech, 2011. http://hdl.handle.net/10919/77139.

Full text
Abstract:
The critically important nature of radical and radical ion mechanisms in biology and chemistry continues to be recognized as our understanding of these unique transient species grows. The work presented herein demonstrates the versatility of kinetic studies for understanding the elementary chemical reactions of radicals and radical ions. Chapter 2 discusses the use of direct ultrafast kinetics techniques for investigation of crucially important enzymatic systems; while Chapter 3 demonstrates the value of indirect competition kinetics techniques for development of synthetic methodologies for co
APA, Harvard, Vancouver, ISO, and other styles
5

Belotti, Damien. "Cyclisation photoreductrice de cetones insaturees, applications : syntheses totales de l'hirsutene et de l'actinidine." Reims, 1988. http://www.theses.fr/1988REIMS006.

Full text
Abstract:
L'irradiation de cetones delta ,epsilon -insaturees en presence de donneurs d'electrons tels que l'hmpt et la triethylamine donne une cyclisation photoreductrice menant a des cyclopentanols. Generalisation de cette reaction a des cetoamides : obtention d'aza-3 bicyclo(4. 3. 0) nonanes
APA, Harvard, Vancouver, ISO, and other styles
6

Cadieu, Marie-Claude. "Reactions de contact des octanes sur des catalyseurs a base de platine et de palladium." Université Louis Pasteur (Strasbourg) (1971-2008), 1988. http://www.theses.fr/1988STR13023.

Full text
Abstract:
Etude des differences de comportements catalytiques entre des catalyseurs supportes pt et pd a partir d'un nouveau type d'hydrocarbure test: les octanes. Mecanisme de cyclisation et d'isomerisation des aliphatiques et d'hydrogenolyse des cyclopentanes
APA, Harvard, Vancouver, ISO, and other styles
7

Béteille, Jean-Pierre. "Thermolyse eclair d'allyl-1 silacyclopentenes-3 : etude mecanistique et application a la synthese d'hydrogenosiloles et de leurs derives fonctionnels." Toulouse 3, 1988. http://www.theses.fr/1988TOU30156.

Full text
Abstract:
La pyrolyse eclair d'allyl-1 silolenes-3 est effectuee. Elle permet d'obtenir des hydrogenosiloles ainsi que des siloles fonctionnels a liaison silicium-azote, -oxygene ou -fluor et des siloles a groupement aryle ou allyle lie au silicium. De la meme facon on etudie la pyrolyse d'allylgermolenes. Les mecanismes de reaction sont etudies
APA, Harvard, Vancouver, ISO, and other styles
8

Estel, Lionel. "Fonctionnalisation d'aminopyridines par métallation : application à la synthèse d'hétérocycles." Rouen, 1988. http://www.theses.fr/1988ROUES035.

Full text
Abstract:
L'action d'aldéhydes aromatiques sur des pivalolaminopyridines ortho lithiées a donné des alcools secondaires qui ont été oxydés en cétones. Ceci permettant une synthèse en 4 étapes des amino-2 pyridyl-3, amino-3 pyridyl-4 et amino-4 pyridyl-3 arylméthanones. De la même façon, la fluoro-4 lithio-3 pyridine conduit à l'amino-4 pyridyl-3 phénylméthanone. Pour montrer l'intérêt de la méthode, des pyridopyrimidinones et des benzonaphtyridines ont été synthétisées. Par ailleurs, la fluoro-2 pyridine métallée, réagit avec l'iode pour donner des iodo-3 pyridines diversement substituées en 2. Une synt
APA, Harvard, Vancouver, ISO, and other styles
9

Pan, Shih-Yun, and 潘世允. "Effect of tacticity on the cyclization mechanism of polyacrylonitrile copolymers." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/4mhbb8.

Full text
Abstract:
碩士<br>國立臺北科技大學<br>有機高分子研究所<br>102<br>In this study, we synthesized polyacrylonitrile copolymers with controlled tacticity on the basis of the strategy of the bulk polymerization of acrylonitrile (AN) in the presence of magnesium chloride, and we selected methacrylate(MA) and dimethyl itaconate (DMI) as comonomer. All polyacrylonitrile copolymers were using 1H-NMR and 13C-NMR to identify its molecular structure, and the polymers’ molecular weights were characterized by gel permeation chromatography. Moreover, X-ray diffraction was utilized to determine the crystallinity; Fourier Transform Infra
APA, Harvard, Vancouver, ISO, and other styles
10

LeClair, Renee. "Elucidating the mechanism of triterpene cyclization using DNA synthesis and phylogenetic approaches." Thesis, 2005. http://hdl.handle.net/1911/18933.

Full text
Abstract:
Nearly every aspect of sterol biosynthesis has been studied or exploited as means of regulating pathway flux, inhibiting specific enzymatic reactions, elucidating product cyclization or determining the evolutionary nature of the pathway itself. Despite enormous efforts in this area pathway regulation, product formation and the evolutionary origins of sterol biosynthesis remain unknown. Described herein is the use of molecular, synthetic and phylogenetic techniques to examine how oxidosqualene cyclases (OSC) (a specific enzyme within the sterol biosynthetic pathway) have evolved over time and h
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Mechanism of Cyclization"

1

Muller-Steffner, Helene, Angelique Augustin, and Francis Schuber. "Involvement of Bovine Spleen NAD+ Glycohydrolase in the Metabolism of Cyclic ADP-Ribose-Mechanism of the Cyclization Reaction." In Advances in Experimental Medicine and Biology. Springer US, 1997. http://dx.doi.org/10.1007/978-1-4419-8632-0_52.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Gallego, Mar Gómez, and Miguel A. Sierra. "Level 1 — Case 14 Cyclization of 2,3-Dibenzylidenesuccinates." In Organic Reaction Mechanisms. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-642-18788-9_14.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Gallego, Mar Gómez, and Miguel A. Sierra. "Level 3 - Case 39 Periodinane-Mediated Cyclization of Anilides." In Organic Reaction Mechanisms. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-642-18788-9_39.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Elliott, Mark C. "Cyclization Reactions." In How to Succeed in Organic Chemistry. Oxford University Press, 2020. http://dx.doi.org/10.1093/hesc/9780198851295.003.0110.

Full text
Abstract:
Answer 1 Here is the mechanism. I’m not going to talk you through each curly arrow at this stage of the book. Make sure you can see why each arrow is going in the direction it is, and why it leads to formation of the...
APA, Harvard, Vancouver, ISO, and other styles
5

Taber, Douglass. "The Bergman-Ellman Synthesis of (-)-Incarvillateine." In Organic Synthesis. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199764549.003.0092.

Full text
Abstract:
The monoterpene alkaloid (-)-incarvillateine 3 has interesting symmetry properties. The central cyclobutane diacid core is not itself chiral, but the appended alkaloids are. The key step in the total synthesis of 3 recently (J. Am. Chem. Soc. 2008, 130, 6316) described by Robert G. Bergman and Jonathan A. Ellman of the University of California, Berkeley was the diastereoselective Rh-catalyzed cyclization of 1 to 2. The cyclobutane diacid core 5 was assembled from ferulic acid 4 following the procedure of Kibayashi (J. Am. Chem. Soc. 2004, 126, 16553). The starting point for the preparation of
APA, Harvard, Vancouver, ISO, and other styles
6

Taber, Douglass F. "C–O Ring Construction: The Oger/Lee/Galano Synthesis of 7(RS)-ST-Δ8-11-dihomo-Isofuran." In Organic Synthesis. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190646165.003.0047.

Full text
Abstract:
Shaorong Yang and Huanfeng Jiang of the South China University of Technology assembled (Angew. Chem. Int. Ed. 2014, 53, 7219) the β-lactone 3 by the Pd-catalyzed addition of 2 to the alkyne 1. Jack R. Norton of Columbia University observed (J. Am. Chem. Soc. 2015, 137, 1036) that the vanadium-mediated reduc­tive cyclization of 4 proceeded by a free radical mechanism, leading to the cis 3,4-disubstituted tetrahydrofuran 5. The cyclization of 6 to 7 developed (J. Org. Chem. 2015, 80, 965) by Glenn M. Sammis of the University of British Columbia also involved H atom transfer. Amy R. Howell of the
APA, Harvard, Vancouver, ISO, and other styles
7

"Pericyclic Reactions." In Reactivity and Mechanism in Organic Chemistry. The Royal Society of Chemistry, 2022. http://dx.doi.org/10.1039/9781837670970-00101.

Full text
Abstract:
Chapter 3 is dedicated to pericyclic reactions and selected rearrangement reactions, and to reactions involving transient intermediates, such as radicals, diradicals or carbocations. The class of electrocyclic ring-opening reactions is first used to illustrate the application of FMO theory arguments and the classification of reactions as orbital symmetry allowed or forbidden. After a short section on biradical intermediates in cyclization reactions of enediynes and eneyne-allenes, we next analyze cycloaddition reactions with the goal of classifying reactions as concerted or stepwise, as synchr
APA, Harvard, Vancouver, ISO, and other styles
8

Schobert, Rainer. "Applications of the Wittig reaction in the synthesis of heterocyclic and carbocyclic compounds." In Organophosphorus Reagents. Oxford University PressOxford, 2004. http://dx.doi.org/10.1093/oso/9780198502623.003.0005.

Full text
Abstract:
Abstract Since its discovery, the Wittig olefination reaction has been widely used in organic synthesis for the construction of olefinic double bonds from various types of carbonyl functionalities (aldehydes, ketones, esters, amides, etc.) and phosphorus ylides of different reactivity. Although the mechanism of this important C=C bond forming process is still under debate, insights into the principles governing its regio- and stereoselectivity are now sufficiently deep, to allow for it, to be harnessed reliably in retrosynthetic strategies. From the early days of ‘Wittig chemistry’, its possib
APA, Harvard, Vancouver, ISO, and other styles
9

König, B. "Cyclization of 1-(Alk-2-ynyloxy)-2-bromo-1-(organooxy)alkanes via a Radical Mechanism." In Fully Unsaturated Small-Ring Heterocycles and Monocyclic Five-Membered Hetarenes with One Heteroatom. Georg Thieme Verlag KG, 2001. http://dx.doi.org/10.1055/sos-sd-009-00302.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Cane, David E. "Sesquiterpene Biosynthesis: Cyclization Mechanisms." In Comprehensive Natural Products Chemistry. Elsevier, 1999. http://dx.doi.org/10.1016/b978-0-08-091283-7.00039-4.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Mechanism of Cyclization"

1

Netscher, Thomas, and Ann-Christine Loesche. "On the Mechanism of the Acid-Catalyzed Stereoselective Chroman Cyclization Reaction." In The 20th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2016. http://dx.doi.org/10.3390/ecsoc-20-b005.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Striebich, R. C., L. Q. Maurice, and T. Edwards. "Formation of Cyclic Compounds in Cracking Reactions for Hydrocarbon-Fueled High Speed Vehicles." In ASME 1999 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/99-gt-136.

Full text
Abstract:
An endothermic fuel pyrolytic reactor may favor the formation of benzene and polynuclear aromatic hydrocarbon (PAH) soot precursors which degrade fuel system performance. Both experimental and computational studies are in progress which verify the formation of multi-ring aromatic compounds in endothermic thermal cracking processes. Classic gas phase pyrolytic soot mechanisms may be effective for the prediction of soot precursor concentrations. Hence, a need exists to examine thermal molecular growth processes in a versatile experimental apparatus which can help guide modeling efforts and incre
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Mechanism of Cyclization' for particular source types:
Journal articles Dissertations / Theses
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography