Relevant bibliographies by topics / Piperidine ring

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

Academic literature on the topic 'Piperidine ring'

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

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Journal articles on the topic "Piperidine ring"

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K, Manjusha R., Shaheen Begum, Arifa Begum, and Bharathi K. "ANTIOXIDANT POTENTIAL OF PIPERIDINE CONTAINING COMPOUNDS-A SHORT REVIEW." Asian Journal of Pharmaceutical and Clinical Research 11, no. 8 (2018): 66. http://dx.doi.org/10.22159/ajpcr.2018.v11i8.26536.

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Piperidine is a saturated heterocyclic ring, considered as a privileged scaffold in view of its role in wide range of biological activities. Piperidine is good candidate molecule for obtaining potent antioxidant agents. The planar nature of this heterocyclic nucleus allows the introduction of substituent groups at different positions on the ring. In the present review, the antioxidant profile of piperidine containing compounds has been focused. The compounds were classified into naturally occurring piperidines, unsaturated piperidines, N-substituted piperidines, piperamides, piperanols, piperi
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Romero, Nancy, Sylvain Bernès, Luis F. Roa, Joel L. Terán, and Dino Gnecco. "Crystal structures of two chiral piperidine derivatives: 1-[(1R)-2-hydroxy-1-phenylethyl]piperidin-4-one and 8-[(1S)-1-phenylethyl]-1,4-dioxa-8-azaspiro[4.5]decane-7-thione." Acta Crystallographica Section E Crystallographic Communications 71, no. 10 (2015): 1207–11. http://dx.doi.org/10.1107/s2056989015017119.

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The crystal structures of the two title piperidine derivatives show different conformations for the six-membered heterocycle. TheN-substituted 4-piperidinone 1-[(1R)-2-hydroxy-1-phenylethyl]piperidin-4-one, C13H17NO2, (I), has a chair conformation, while the piperidine substituted in position 2 with a thiocarbonyl group, 8-[(1S)-1-phenylethyl]-1,4-dioxa-8-azaspiro[4.5]decane-7-thione, C15H19NO2S, (II), features a half-chair conformation. Comparison of the two structures, and data retrieved from the literature, suggests that the conformational flexibility is mainly related to the hybridization
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Jothivel, S., Jibon Kotoky, and S. Kabilan. "Crystal structure of 1-(2-chloroacetyl)-3,3-dimethyl-2,6-di-p-tolylpiperidin-4-one." Acta Crystallographica Section E Crystallographic Communications 71, no. 3 (2015): o173—o174. http://dx.doi.org/10.1107/s2056989015002613.

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In the title compound, C23H26ClNO2, the piperidin-4-one ring adopts a distorted boat conformation. The twop-tolyl rings are nearly normal to each other, making a dihedral angle of 83.33 (10)°. They are inclined to the mean plane of the piperidine ring by 73.2 (1) and 87.22 (9)°. In the crystal, there are no significant intermolecular interactions present.
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Eckhardt, Tamira, Richard Goddard, Ines Rudolph, et al. "[2-Chloro-3-nitro-5-(trifluoromethyl)phenyl](piperidin-1-yl)methanone: structural characterization of a side product in benzothiazinone synthesis." Acta Crystallographica Section E Crystallographic Communications 76, no. 9 (2020): 1442–46. http://dx.doi.org/10.1107/s2056989020010658.

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1,3-Benzothiazin-4-ones (BTZs) are a promising new class of anti-tuberculosis drug candidates, some of which have reached clinical trials. The title compound, the benzamide derivative [2-chloro-3-nitro-5-(trifluoromethyl)phenyl](piperidin-1-yl)methanone, C13H12ClF3N2O3, occurs as a side product as a result of competitive reaction pathways in the nucleophilic attack during the synthesis of the BTZ 8-nitro-2-(piperidin-1-yl)-6-(trifluoromethyl)-1,3-benzothiazin-4-one, following the original synthetic route, whereby the corresponding benzoyl isothiocyanate is reacted with piperidine as secondary
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Rádl, Stanislav, Wieland Hafner, Petr Hezký, Ivan Krejčí, Jan Proška, and Jan Taimr. "Molecular Modification of Anpirtoline, a Non-Opioid Centrally Acting Analgesic." Collection of Czechoslovak Chemical Communications 64, no. 2 (1999): 363–76. http://dx.doi.org/10.1135/cccc19990363.

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Molecular modification of anpirtoline (2a) is described. Several methods of preparation of 4-[(3-chlorophenyl)sulfanyl]-1-methylpiperidine (3a) and its demethylation led to the deazaanpirtoline (3c). Nucleophilic substitution of piperidine-4-thiole with 2-chloro-4-nitropyridine, 2,4-dichloro-6-methylpyridine, and 3,6-dichloropyridazine led to 2-chloro-4-(piperidin-4-ylsulfanyl)pyridine (6), 4-chloro-6-methyl-2-(piperidin-4-ylsulfanyl)pyridine (7), and 3-chloro-6-(piperidin-4-ylsulfanyl)pyridazine (8), respectively. 2-Chloro-6-(pyridin-4-ylsulfanyl)pyridine (10) and 4-[(2-chloropyridin-6-yl)sul
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Méndez, Leonor, and Vladimir Kouznetsov. "Intramolecular N to N acyl migration in conformationally mobile 1′-acyl-1-benzyl-3′,4′-dihydro-1′H-spiro[piperidine-4,2′-quinoline] systems promoted by debenzylation conditions (HCOONH4/Pd/C)." Open Chemistry 9, no. 5 (2011): 877–85. http://dx.doi.org/10.2478/s11532-011-0082-y.

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AbstractWe report an efficient and useful synthesis of new attractive spiropiperdine scaffolds 4 based on an intramolecular acyl transfer process in 1′-acyl-1-benzyl-3′,4′-dihydro-1′H-spiro[piperidine-4,2′-quinolines] 3 using simple and mild debenzylation reaction conditions (HCOONH4/Pd/C). The compounds 3 were prepared by acylating 1-benzyl-4′-methyl-3′,4′-dihydro-1′H-spiro[piperidine-4,2′-quinolines] 2 that are easily available from 1-benzyl-4-piperidone 1. The intramolecular character of this process was proven primarily through a crossover experiment technique. Through an examination of al
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Revathi, B. K., D. Reuben Jonathan, K. Kalai Sevi, K. Dhanalakshmi, and G. Usha. "Crystal structure of the adduct (4-chlorophenyl)(4-hydroxypiperidin-1-yl)methanone–(4-chlorophenyl)(piperidin-1-yl)methanone (0.75/0.25)." Acta Crystallographica Section E Crystallographic Communications 71, no. 11 (2015): o896—o897. http://dx.doi.org/10.1107/s2056989015020265.

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In the title compound, 0.75C12H14ClNO2·0.25C12H14ClNO, which is an adduct comprising 0.75 4-hydroxypiperidin-1-yl or 0.25 4-piperidin-1-yl substituents on a common (4-chlorophenyl)methanone component; the dihedral angles between the benzene ring and the two piperidine rings are 51.6 (3) and 89.5 (7)°, respectively. The hydroxypiperidine ring is in a bisectional oriention (bi) with the phenyl ring. In the crystal, intermolecular O—H...O hydrogen bonds between the hydroxypiperidine group and the keto O atom lead to the formation of chains extending along thec- axis direction.
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Kiss, Loránd, Melinda Nonn, Lamiaa Ouchakour, and Attila M. Remete. "Application of Oxidative Ring Opening/Ring Closing by Reductive Amination Protocol for the Stereocontrolled Synthesis of Functionalized Azaheterocycles." Synlett 33, no. 04 (2021): 307–28. http://dx.doi.org/10.1055/s-0040-1719850.

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AbstractThe current Account gives an insight into the synthesis of some N-heterocyclic β-amino acid derivatives and various functionalized saturated azaheterocycles accessed from substituted cycloalkenes via ring C=C bond oxidative cleavage followed by ring closing across double reductive amination. The ring-cleavage protocol has been accomplished according to two common approaches: a) Os-catalyzed dihydroxylation/NaIO4 vicinal diol oxidation and b) ozonolysis. A comparative study on these methodologies has been investigated. Due to the everincreasing relevance of organofluorine chemistry in d
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Vinuchakkaravarthy, T., R. Sivakumar, T. Srinivasan, V. Thanikachalam, and D. Velmurugan. "(E)-3-Isopropyl-1-methyl-2,6-diphenylpiperidin-4-oneO-nicotinoyl oxime." Acta Crystallographica Section E Structure Reports Online 70, no. 5 (2014): o551. http://dx.doi.org/10.1107/s1600536814007363.

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In the title compound, C27H29N3O2, the piperidine ring exists in a chair conformation with an equatorial orientation of the phenyl and methyl substituents. The C—C=N bond angles are significantly different [119.1 (2) and 127.2 (2)°]. The phenyl rings are inclined to one another by 44.90 (14)°, and by 80.85 (13) and 79.62 (12)° to the mean plane of the piperidine ring. The terminal pyridine ring is inclined to the piperidine ring mean plane by 74.79 (15)°. In the crystal, molecules are linked by C—H...π interactions, forming a three-dimensional network.
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Talbot, Eric. "Synthesis of Polyfunctionalised 2-Piperidinones Catalysed by Fe(acac)3." Synlett 30, no. 07 (2019): 821–26. http://dx.doi.org/10.1055/s-0037-1610700.

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Herein is reported the synthesis of polyfunctionalised piperidines and 2-piperidinones, through hydrogen atom transfer (HAT) chemistry catalysed by Fe(acac)3. The nature and substitution around the Michael acceptor, as well as the allylic amine, allowed access to all positions of the piperidine ring. The chemistry tolerates a range of different functionalities, allowing the investigation of new and diverse scaffolds.
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Dissertations / Theses on the topic "Piperidine ring"

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Wong, Yung-Sing. "Nouveaux intermediaires chiraux de type 1,4-dihydropyridine et equivalents de sels de 3,4-dihydropyridinium pour la synthese asymetrique de piperidines polysubstituees. Application a la synthese enantioselective du 3-ppp et de l'indolizidine 195b." Paris 11, 1994. http://www.theses.fr/1994PA112105.

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L'application de la reaction de zincke a des amines primaires enantiomeriquement pures a donne des sels de pyridinium portant un centre asymetrique directement fixe sur l'azote, a partir de la pyridine correspondante, substituee ou non en position 3. L'etude de la reduction par le dithionite de sodium de ces sels a conduit de maniere efficace a de nouveaux intermediaires 1,4-dihydropyridines chiraux. La reduction des sels n-substitues par une chaine phenylethanol donne des 1,4-dihydropyridines qui s'isomerisent en 3,7,8,8a-tetrahydro-2h-oxazolo3,2-apyridines. Une etude structurale a ete entrep
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Escudero, Julien. "Oxyamination d'alcoxyamines catalysée par le rhodium(iii) - Agrandissement de pyrrolidines en présence de sels d'argent." Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066429/document.

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La préparation d'hétérocycles azotés et/ou oxygénés constitue un domaine majeur de la chimie de synthèse. Les alcoxyamines insaturées sont d'intéressants précurseurs pour accéder à ces hétérocycles car elles contiennent à la fois un atome d'azote et un atome d'oxygène au sein de leur structure. La mise en réaction d'alcoxyamines O-insaturées en condition d'activation de liaison C-H en présence de rhodium(III), non étudiée à ce jour, nous a permis de mettre en évidence une réaction d'oxyamination menant à des hétérocycles oxygénés. Nous décrivons dans ce manuscrit le développement de cette réac
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Arnaout, Abdulkarim al. "Synthese regioselective de dihydropyridines et de pyridines 2- ou 4-fonctionnalisees : applications." Poitiers, 1987. http://www.theses.fr/1987POIT2254.

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Lazraq, Mohamed. "Derives doublement lies du bore, du phosphore et du germanium : phosphaborenes et germenes." Toulouse 3, 1988. http://www.theses.fr/1988TOU30141.

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De nouvelles methodes de synthese de diphosphadiboretannes-1,3,2,4 sont decrites. Un derive a double liaison bore-phosphore du type rb=par (avec r=tetramethyl-2,2,6,6 piperidyl et ar=tri-t-butyl-2,4,6 phenyl) a ete mis en evidence par piegeage in situ. Le premier derive stable a double liaison germanium-carbone a ete prepare: il s'agit du dimesityl fluoremylidene germane. Sa caracterisation a ete effectuee par diverses methodes physicochimiques et sa reactivite chimique, etudiee
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Jarvis, Scott. "Enantiopure 3-substituted piperidines via an aziridinium ion ring expansion." Thèse, 2011. http://hdl.handle.net/1866/6878.

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Ce mémoire décrit le développement d’une nouvelle méthodologie d’expansion de cycle irréversible à partir de N-alkyl-3,4-déhydroprolinols pour former des N-alkyl tétrahydropyridines 3-substituées en passant par un intermédiaire aziridinium bicyclique. Cette méthode permet l’introduction d’un vaste éventail de substituants à la position 3 et tolère bien la présence de groupements aux positions 2 et 6, donnant accès à des pipéridines mono-, di- ou trisubstituées avec un excellent diastéréocontrôle. De plus, il est démontré que l’information stéréogénique du 3,4-déhydroprolinol de départ est tota
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Che-WeiTu and 凃哲維. "Study of aziridinium ring expansion of poly-substituted pyrrolidines: development of piperidine-based iminosugars and novel alpha-L-iduronidase inhibitors." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/4pjrwf.

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碩士<br>國立成功大學<br>化學系<br>102<br>Iminosugars, particularly polyhydroxylated pyrrolidines and piperidines, are biologically interesting alkaloids and some alkaloids have shown therapeutic applications in the treatment of diabetes and lysosomal storage disease. From the structural point of view, these molecules contain polyhydroxylated groups and multi-stereogenic centers, causing the difficulty in the preparation and modification. Comprehensive synthesis of pyrrolidine-based iminosugars has been reported in our lab. However, preparation of polyhydroxylated piperidines from pyrroldines via ring exp
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Wells, Charles Eugene. "An approach towards the synthesis of Nakadomarin A and Manzamine A Using Pauson-Khand technology." Thesis, 2004. http://hdl.handle.net/2152/29857.

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This dissertation is devoted to our synthetic studies towards the total synthesis of the natural product Nakadomarin A, and Manzamine A using the Pauson-Khand reaction as the key step. Chapter 1 reviews past work using Pauson-Khand technology. Chapter 2 reviews the N-alkyl piperidine family of natural products. Chapter 3 reviews published total syntheses of Manzamine A and Nakadomarin A. Chapter 4 explores our work using the Pauson-Khand reaction to form the ABC rings of Nakadomarin A and subsequent B ring expansion to form the ABC ring core of Manzamine A. Chapter 5 explores our approaches to
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Baiazitov, Ramil Yashnurovich. "Tandem double intramolecular [4+2]/[3+2] cycloaddition of nitro olefins : part I construction of piperidine rings, part II construction of vicinal quaternary stereogenic centers, part III progress toward a total synthesis of daphnilactone B /." 2007. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3269837.

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Thesis (Ph. D.)--University of Illinois at Urbana-Champaign, 2007.<br>Source: Dissertation Abstracts International, Volume: 68-06, Section: B, page: 3788. Adviser: Scott E. Denmark. Includes bibliographical references (leaves 371-384). Available on microfilm from Pro Quest Information and Learning.
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Book chapters on the topic "Piperidine ring"

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Li, Jie Jack, and Minmin Yang. "Piperidine, the Enchanted Ring." In Drug Discovery with Privileged Building Blocks. CRC Press, 2021. http://dx.doi.org/10.1201/9781003190806-19.

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Taber, Douglass. "The Smith Synthesis of ( + )-Lyconadin A." In Organic Synthesis. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199764549.003.0086.

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The pentacyclic alkaloid ( + )-lyconadin A 3, isolated from the club moss Lycopodium complanatum, showed modest in vitro cytotoxicity. A key step in the first reported (J. Am. Chem. Soc. 2007, 129, 4148) total synthesis of 3, by Amos B. Smith III of the University of Pennsylvania, was the cyclization of 1 to 2. The pentacyclic alkaloid (+)-lyconadin A 3, isolated from the club moss Lycopodium complanatum, showed modest in vitro cytotoxicity. A key step in the first reported (J. Am. Chem. Soc. 2007, 129, 4148) total synthesis of 3, by Amos B. Smith III of the University of Pennsylvania, was the
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Fellows, Linda E., Geoffrey C. Kite, Robert J. Nash, Monique S. J. Simmonds, and Anthony M. Scofield*. "Distribution and biological activity of alkaloidal glycosidase inhibitors from plants." In Nitrogen Metabolism of Plants. Oxford University PressOxford, 1992. http://dx.doi.org/10.1093/oso/9780198577522.003.0016.

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Abstract Alkaloidal glycosidase inhibitors (AG Is), which have been reported to occur in many species of higher plants, bacteria and fungi, are probably widespread in nature. They belong to five different chemical structural types, namely polyhydroxylated derivatives of piperidine, pyrrolidine, pyrroline, octahydroindolizine, and pyrrolizidine. Certain of the simpler piperidine and pyrrolidine derivatives bear an obvious structural resemblance to 1-deoxy monosaccharides, with the ring oxygen replaced by nitrogen. The orientation of hydroxy groups on the more complex bicyclic structures also su
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Taber, Douglass. "New Methods for the Stereoselective Construction of N-Containing Rings." In Organic Synthesis. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199764549.003.0053.

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Several methods have been reported for the stereocontrolled preparation of pyrrolidine and piperidine derivatives. Alison J. Frontier of the University of Rochester has observed (Organic Lett. 2007, 9, 4939) that hydrogenation of acyl pyrroles such as 1 gave good control not just around the ring, but also on the sidechain. Chi-Ming Che of the University of Hong Kong has devised ( J. Am. Chem. Soc. 2007, 129, 5828) a catalyst that converted amides such as 3 into the cyclized product 4, also with high diastereocontrol. Jean Ollivier of the Université de Paris-Sud, following the Sato procedure, h
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Taber, Douglass. "Stereoselective C-N Ring Construction." In Organic Synthesis. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199764549.003.0054.

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Ryoichi Kuwano of Kyushu University showed (J. Am. Chem. Soc. 2008, 130, 808) that diastereomerically and enantiomerically pure pyrollidines such as 2 could be prepared by hydrogenation of the corresponding pyrrole. Victor S. Martín of Universidad de la Laguna found (Organic Lett. 2008, 10, 2349) that the stereochemical outcome of the pyrrolidine-forming Nicholas cyclization could be directed by the protecting group on the N. Jianbo Wang of Peking University established (J. Org. Chem. 2008, 73, 1971) a convenient route to diazo esters such as 6. N-H insertion led to the pyrrolidine, which Zhen
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Taber, Douglass F. "C–N Ring Construction: The Fujii/Ohno Synthesis of (–)-Quinocarcin." In Organic Synthesis. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780190200794.003.0056.

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Tsutomu Katsuki of Kyushu University devised (Org. Lett. 2012, 14, 4658) a Ru catalyst for the enantioselective aziridination of vinyl ketones such as 1. David W.C. MacMillan of Princeton University added (J. Am. Chem. Soc. 2012, 134, 11400) 3 to the alkene 4 under single electron conditions to give 5 with high stereocontrol. Barry M. Trost of Stanford University effected (J. Am. Chem. Soc. 2012, 134, 4941) the Pd-catalyzed addition of 7 to an imine 6 to give the pyrrolidine 8. More recently, he used (J. Am. Chem. Soc. 2013, 135, 2459) this approach to construct pyrrolidines containing defined
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Taber, Douglass F. "C–N Ring Construction: The Harrity Synthesis of Quinolizidine (–)-217A." In Organic Synthesis. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780190200794.003.0054.

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David M. Jenkins of the University of Tennessee devised (J. Am. Chem. Soc. 2011, 133, 19342) an iron catalyst for the aziridination of an alkene 1 with an aryl azide 2. Yoshiji Takemoto of Kyoto University cyclized (Org. Lett. 2011, 13, 6374) the prochiral oxime derivative 4 to the azirine 5 in high ee. Organometallics added to 5 syn to the pendant ester. Hyeung-geun Park of Seoul National University used (Adv. Synth. Catal. 2011, 353, 3313) a chiral phase transfer catalyst to effect the enantioselective alkylation of 6 to 7. Yian Shi of Colorado State University showed (Org. Lett. 2011, 13, 6
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Taber, Douglass F. "C–N Ring Construction: The Hoye Synthesis of (±)-Leuconolactam." In Organic Synthesis. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780190200794.003.0057.

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Manas K. Ghorai of the Indian Institute of Technology, Kanpur depended (J. Org. Chem. 2013, 78, 2311) on memory of chirality during deprotonation to convert 1 to the aziridine 3. X. Peter Zhang of the University of South Florida demonstrated (Angew. Chem. Int. Ed. 2013, 52, 5309) that Co-catalyzed enantioselective aziridination is compatible with fluoro-aromatics such as 5. David M. Hodgson of the University of Oxford prepared (J. Org. Chem. 2013, 78, 1098) the azetidine 8 by double deprotonation of 7 followed by acylation. Laurel L. Schafer of the University of British Columbia assembled (Org
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"Alkaloids." In Chemical Diversity of Plant Specialized Metabolites. Royal Society of Chemistry, 2023. http://dx.doi.org/10.1039/9781837671472-00218.

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Alkaloids are organic compounds containing nitrogen usually in the heterocyclic ring. True alkaloids are derived from different amino acids. Tropane alkaloids, pyrrolidine alkaloids and pyrrolizidine alkaloids are derived from the amino acid ornithine; pyridine, piperidine, quinolizidine, indolizidine, and Lycopodium alkaloids from aspartate/lysine; isoquinoline alkaloids from tyrosine; imidazole alkaloids from histidine; indole and quinoline alkaloids from tryptophan; and quinazoline alkaloids are anthranilic acid derived. Protoalkaloids are also derived from amino acids, but the nitrogen ato
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Basra, Sandeep, and Siegfried Blechert. "Ring Rearrangement Metathesis (RRM) – A New Concept in Piperidine and Pyrrolidine Synthesis." In Strategies and Tactics in Organic Synthesis. Elsevier, 2004. http://dx.doi.org/10.1016/s1874-6004(04)80016-9.

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Conference papers on the topic "Piperidine ring"

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Couture, Axel, Eric Deniau, Pierre Grandclaudon, and Stéphane Lebrun. "Synthesis of Cyclic Enehydrazides by Ring-Closure Metathesis. Application to the Enantioselective Synthesis of 2-Alkyl and Aryl Piperidines." In The 10th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2006. http://dx.doi.org/10.3390/ecsoc-10-01385.

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