Relevant bibliographies by topics / 5-exo-trig

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Academic literature on the topic '5-exo-trig'

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

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Journal articles on the topic "5-exo-trig"

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Long, Hao, Jinshuai Song, and Hai-Chao Xu. "Electrochemical synthesis of 7-membered carbocycles through cascade 5-exo-trig/7-endo-trig radical cyclization." Organic Chemistry Frontiers 5, no. 21 (2018): 3129–32. http://dx.doi.org/10.1039/c8qo00803e.

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Nagano, Hajime, Yohko Ohtani, Eiko Odake, Junko Nakagawa, Yukie Mori, and Tomoko Yajima. "Tandem 5-Exo-dig-5-exo-trig Radical Cyclization leading to a 6,5-Ring Fused Carbobicycle possessing Two Contiguous Quaternary Carbons at the Bridgehead and its Adjacent Positions." Journal of Chemical Research 23, no. 5 (1999): 338–39. http://dx.doi.org/10.1177/174751989902300521.

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Sivappa, Rasapalli, Vamshikrishna Reddy Sammeta, Yanchang Huang, James A. Golen, and Sergey N. Savinov. "Facile synthesis of 3-substituted imidazo[1,2-a]pyridines through formimidamide chemistry." RSC Advances 9, no. 51 (2019): 29659–64. http://dx.doi.org/10.1039/c9ra05841a.

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A facile entry to 3-substituted imidazo[1,2-a]pyridines from halides and 2-amino pyridines via formimidamide chemistry has been developed through a formal anti-Baldwin 5-endo-trig cyclization that becomes a thermally allowed 5-exo-trig cyclization.
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Hollingworth, GJ, G. Pattenden, and DJ Schulz. "Cascade Radical Cyclization-Fragmentation-Transannular-Ring Expansion Reactions Involving Oximes. A New Approach to Synthesis of Angular Triquinanes." Australian Journal of Chemistry 48, no. 2 (1995): 381. http://dx.doi.org/10.1071/ch9950381.

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Treatment of the acetylene-substituted cyclobutanone oxime ether (13) with (Me3Si)3SiH leads, in one pot, to the 5,6-bicyclic enone oxime (14) in 70% yield. It is suggested that the formation of (14) from (13) proceeds by way of a novel double ring expansion-transannulation process involving aminyl radical intermediates (see Scheme 3, below). By contrast, treatment of the cyclobutanone (3a) with Bu3SnH instead leads only to the product (11) of hydrostannylation of the acetylene unit in (3a). Neither (3a) nor (13) produced any of the expected bicyclo[3.3.0]octane products, viz. (5a) and (15), f
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Kurkutov, Evgeny O., and Bagrat A. Shainyan. "Iodine-Mediated Alkoxyselenylation of Alkenes and Dienes with Elemental Selenium." Molecules 27, no. 19 (2022): 6169. http://dx.doi.org/10.3390/molecules27196169.

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A one-pot synthesis of linear and cyclic β-alkoxyselenides is developed through the iodine-mediated three-component reaction of elemental selenium with alkenes (dienes) and alcohols. Selenylation of 1,5-hexadiene gives 2,5-di(methoxymethyl)tetrahydroselenophene and 2-methoxy-6-(methoxymethyl)tetrahydro-2H-selenopyran via the 5-exo-trig and 6-endo-trig cyclization. 1,7-Octadiene affords only linear 1:2 adduct with two terminal double bonds. 1,5-Cyclooctadiene results in one diastereomer of 2,6-dialkoxy-9-selenabicyclo [3.3.1]nonanes via 6-exo-trig cyclization. With 1,3-diethenyl-1,1,3,3-tetrame
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Tănase, Constantin I., Constantin Drăghici, Sergiu Shova, Anamaria Hanganu, Emese Gal, and Cristian V. A. Munteanu. "A long-range tautomeric effect on a new Schiff isoniazid analogue, evidenced by NMR study and X-ray crystallography." New Journal of Chemistry 42, no. 17 (2018): 14459–68. http://dx.doi.org/10.1039/c8nj01680a.

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Broggini, Gianluigi, Silvia Gazzola, Egle Beccalli, Tea Borelli, Carlo Castellano, and Daria Diamante. "Selective 7-endo-Cyclization of 3-Aza-5-alkenols through Oxidative Pd(II)-Catalyzed Olefin Oxyarylation." Synlett 29, no. 04 (2017): 503–8. http://dx.doi.org/10.1055/s-0036-1590939.

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3-Aza-5-alkenols undergo selective 7-endo-trig cyclization when treated with a catalytic Pd(II) species, CuCl2 and ArSnBu3 giving 7-aryl-substituted oxazepanes. The intramolecular alkoxylation occurs with formation of a seven-membered ring only when associated with an arylating step. Otherwise, 6-exo-trig reactions, providing morpholine derivatives, were observed.
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Sun, Xi, Xu Dong, Yi Yang, et al. "Palladium-catalyzed cascade 5-exo-trig radical cyclization/aromatic C–H alkylation with unactivated alkyl iodides." Organic & Biomolecular Chemistry 19, no. 12 (2021): 2676–80. http://dx.doi.org/10.1039/d1ob00346a.

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Makarov, Anton S., Alexander A. Fadeev, and Maxim G. Uchuskin. "Intramolecular iron-catalyzed transannulation of furans with O-acetyl oximes: synthesis of functionalized pyrroles." Organic Chemistry Frontiers 8, no. 23 (2021): 6553–60. http://dx.doi.org/10.1039/d1qo01281a.

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Pradipta, Kumar Basu, and Ghosh Amrita. "Synthesis of -naphthol and -naphthol annulated heterocycles : Regioselective heterocyclization of 2-allylnaphthalene-1-ol and 1-allylnaphthalene-2-ol." Journal of Indian Chemical Society Vol. 91, Mar 2014 (2014): 575–79. https://doi.org/10.5281/zenodo.5717767.

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Department of Chemistry, Hooghly Mohsin College, P.O. Chinsurah, Hooghly-712 101, West Bengal, India <em>E-mail </em>: pkbasu74@gmail.com <em>Fax</em> : 91-33-2681-0544 <em>Manuscript received online 24 April 2012, revised 04 June 2012, accepted 31 December 2012</em> 2-Allylnaphthalene-1-ol (1a) and 1-allylnaphthalene-2-ol (1b) undergo regioselective heterocyclization to give 5-<em>exo</em>-trig cyclized products 2a or 2b on treatment with pyridine hydrotribromide (3h); or hexamethylenetetramine hydrotribromide (2h); or elemental bromine in CHCl<sub>3</sub> (7 h); or N-bromosuccinimide in acet
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Dissertations / Theses on the topic "5-exo-trig"

1

Simon, Ingrid. "Indolo[2,3-b]quinoléines : cascade radicalaire combinant une cyclisation 5-exo-trig avec le réarrangement de Smiles." Thesis, Reims, 2013. http://www.theses.fr/2013REIMP203/document.

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Le squelette indolo[2,3-b]quinoléique est une cible synthétique attrayante car il est présent notamment dans la néocryptolépine, alcaloïde aux propriétés cytotoxiques et antipaludéennes. Nous proposons ici une approche originale pour accéder à ce tétracycle, qui combine dans une réaction radicalaire en cascade une cyclisation à un réarrangement de Smiles. La mise au point des conditions expérimentales et l'étude mécanistique de cette voie ont constitué le premier objectif de ce travail. Outre les produits attendus, les études structurales approfondies ont mis en évidence la formation de compos
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Rhee, Jong. "PartI. Synthesiss of N-heterocyclic furanosides and pyranosides via 5- or 6-Exo-trig-radical cyclization. Part II. (a) Palladium catalyzed silystannylative cyclization of diynes and allenynes (b) Regioselective Diels-Alder reaction of vinyls." The Ohio State University, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=osu1078850581.

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Rhee, Jong Uk. "Part I. Synthesis of n-heterocyclic furanosides and pyranosides via 5- or 6-exo-trig-radical cyclization. Part II. (a) Palladium catalyzed silystannylative cyclization of diynes and allenynes. (b) Regioselective Diels-Alder reaction of vinylsilane and its application to Papulacandin D core structure." Connect to this title online, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1078850581.

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Thesis (Ph. D.)--Ohio State University, 2004.<br>Title from first page of PDF file. Document formatted into pages; contains xx, 456 p.; also includes graphics Includes bibliographical references (p. 449-456). Available online via OhioLINK's ETD Center
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