Gotowe bibliografie tematyczne / Allyic substitution

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  1. Artykuły w czasopismach
  2. Rozprawy doktorskie
  3. Książki
  4. Części książek
  5. Streszczenia konferencji

Gotowa bibliografia na temat „Allyic substitution”

Autor: Grafiati
Data publikacji: 2 listopada 2024
Data aktualizacji: 31 lipca 2025

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Artykuły w czasopismach na temat "Allyic substitution"

1

Yang, Shuang, and Xinqiang Fang. "Copper-catalyzed yne-allylic substitutions: concept and recent developments." Beilstein Journal of Organic Chemistry 20 (October 31, 2024): 2739–75. http://dx.doi.org/10.3762/bjoc.20.232.

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The catalytic (asymmetric) allylation and propargylation have been established as powerful strategies allowing access to enantioenriched α-chiral alkenes and alkynes. In this context, combining allylic and propargylic substitutions offers new opportunities to expand the scope of transition metal-catalyzed substitution reactions. Since its discovery in 2022, copper-catalyzed yne-allylic substitution has undergone rapid development and significant progress has been made using the key copper vinyl allenylidene intermediates. This review summarizes the developments and illustrates the influences o
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Hastings, Alan. "Substitution Rates Under Stabilizing Selection." Genetics 116, no. 3 (1987): 479–86. http://dx.doi.org/10.1093/genetics/116.3.479.

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ABSTRACT Allelic substitutions under stabilizing phenotypic selection on quantitative traits are studied in Monte Carlo simulations of 8 and 16 loci. The results are compared and contrasted to analytical models based on work of M. Kimura for two and "infinite" loci. Selection strengths of S = 4Nes approximately four (which correspond to reasonable strengths of selection for quantitative characters) can retard substitution rates tenfold relative to rates under neutrality. An important finding is a strong dependence of per locus substitution rates on the number of loci.
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Vilotijevic, Ivan, Markus Lange, and You Zi. "Latent (Pro)Nucleophiles in Enantioselective Lewis Base Catalyzed Allylic Substitutions." Synlett 31, no. 13 (2020): 1237–43. http://dx.doi.org/10.1055/s-0040-1707130.

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The use of latent nucleophiles, which are molecules that are not nucleophilic but can be activated to act as a nucleophile at an opportune time during the reaction, expands the scope of Lewis base catalyzed reactions. Here, we provide an overview of the concept and show examples of applications to N- and C-centered nucleophiles in allylic substitutions. N- and C-silyl compounds are superior latent (pro)nucleophiles in Lewis base catalyzed reactions with allylic fluorides in which the formation of the strong Si–F bond serves as the driving force for the reactions. The latent (pro)nucleophiles e
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Lopes Jesus, A. J., Cláudio M. Nunes, Gil A. Ferreira, Kiarash Keyvan, and R. Fausto. "Photochemical Generation and Characterization of C-Aminophenyl-Nitrilimines: Insights on Their Bond-Shift Isomers by Matrix-Isolation IR Spectroscopy and Density Functional Theory Calculations." Molecules 29, no. 15 (2024): 3497. http://dx.doi.org/10.3390/molecules29153497.

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The intriguing ability of C-phenyl-nitrilimine to co-exist as allenic and propargylic bond-shift isomers motivated us to investigate how substituents in the phenyl ring influence this behavior. Building on our previous work on the meta- and para-OH substitution, here we extended this investigation to explore the effect of the NH2 substitution. For this purpose, C-(4-aminophenyl)- and C-(3-aminophenyl)-nitrilimines were photogenerated in an argon matrix at 15 K by narrowband UV-light irradiation (λ = 230 nm) of 5-(4-aminophenyl)- and 5-(3-aminophenyl)-tetrazole, respectively. The produced nitri
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Bergbreiter, David E., Andrew Kippenberger, and Zhenqi Zhong. "Catalysis with palladium colloids supported in poly(acrylic acid)-grafted polyethylene and polystyrene." Canadian Journal of Chemistry 84, no. 10 (2006): 1343–50. http://dx.doi.org/10.1139/v06-076.

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Grafts of poly(acrylic acid) on polyethylene powder (PE-g-PAA) or polystyrene (PS-g-PAA) can be used to support Pd(0) crystallites that function like a homogeneous Pd(0) catalyst in some reactions. These Pd–PE-g-PAA catalysts were active in allylic substitution reactions in the presence of added phosphine ligand. A catalyst analogous to the Pd–PE-g-PAA powder catalyst on polystyrene (Pd–PS-g-PAA) was similarly active for allylic substitution and could also be used in Heck reactions at 80–100 °C in N,N-dimethylacetamide (DMA). Analysis of the product solutions for Pd leachate and a correlation
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Kang, Suk-Ku, Dae-Yeun Kim, Ryung-Kee Hong, and Pil-Su Ho. "Ruthenium-Catalyzed Allylic Substitution of Allylic Cyclic Carbonates." Synthetic Communications 26, no. 17 (1996): 3225–35. http://dx.doi.org/10.1080/00397919608004631.

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Shekhar, Shashank, Brian Trantow, Andreas Leitner, and John F. Hartwig. "Sequential Catalytic Isomerization and Allylic Substitution. Conversion of Racemic Branched Allylic Carbonates to Enantioenriched Allylic Substitution Products." Journal of the American Chemical Society 128, no. 36 (2006): 11770–71. http://dx.doi.org/10.1021/ja0644273.

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Boussonnière, Anne, Anne-Sophie Castanet, and Hélène Guyon. "Transition-Metal-Free Enantioselective Reactions of Organo­magnesium Reagents Mediated by Chiral Ligands." Synthesis 50, no. 18 (2018): 3589–602. http://dx.doi.org/10.1055/s-0037-1610135.

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Organomagnesium reagents are among the most important reagents in organic chemistry because of their great utility in forming carbon–carbon bonds. Although most enantioselective reactions using these organometallics involve transmetalation, the past decade has witnessed impressive advances in direct chiral-ligand-mediated reactions of organomagnesiums­. This short review presents an overview of these achievements in enantioselective nucleophilic additions and substitutions.1 Introduction2 Enantioselective Nucleophilic Additions2.1 Addition to C=O Bonds2.2 Addition to C=N Bonds2.3 Addition to C
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Tridib, Tripathy, Kolya Haradhan, and R. De B. "Reactions of the allylic substrate at a glance." Journal of Indian Chemical Society Vol. 90, Sep 2013 (2013): 1473–88. https://doi.org/10.5281/zenodo.5790913.

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Department of Chemistry, Midnapore College, Midnapore, Paschim Medinipur-721 101, West Bengal, India Department of Chemistry, Vidyasagar University, Midnapore, Paschim Medinipur-721 102, West Bengal, India <em>E-mail </em>: brdranjan@yahoo.com <em>Manuscript received 18 October 2012, accepted 02 November 2012</em> The chemistry of the allylic compounds has played, an important part in organic chemistry. Rearrangements in the allylic substrate have been long known. Allylic rearrangements are often observed in bimolecular (SN<sup>2</sup>) as well as in unimolecular substitution (SN<sup>1</sup>)
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Thoke, Mahesh Bhagwan, and Qiang Kang. "Rhodium-Catalyzed Allylation Reactions." Synthesis 51, no. 13 (2019): 2585–631. http://dx.doi.org/10.1055/s-0037-1611784.

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Rhodium-catalyzed allylation reactions are well known for their unique selectivity and reactivity due to the high memory effect of Rh as compared to other metals. These reactions involve the substitution of allylic rhodium intermediates with a diverse range of different nucleophiles, leading to C–C and C–heteroatom bond formation. Modern organic chemists are, however, interested in atom-economical protocols under greener pathways and following recent increased understanding of mechanistic aspects of Rh-catalyzed allylation via the hydrofunctionalization of allenes or alkynes, great strides hav
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Rozprawy doktorskie na temat "Allyic substitution"

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Yu, Xiaodan. "New functionalized alkylidenecyclobutanes : multicomponent synthesis and applications." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASF034.

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Les dérivés du cyclobutane sont devenus de plus en plus importants en tant que blocs de construction moléculaires en raison de leur contrainte cyclique inhérente et de la modification sélective de leurs structures qui peuvent être utilisées de manière stratégique dans la synthèse organique. Les cycles cyclobutane apparaissent également dans les structures moléculaires d'un large panel de molécules naturelles et synthétiques qui présentent des activités biologiques intéressantes. Au sein de cette grande famille, les sous-unités alkylidènecyclobutane sont rencontrées dans des produits naturels,
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Xie, Jianing. "Advancing Pd-catalyzed Stereoselective Allylic Substitution Reactions." Doctoral thesis, Universitat Rovira i Virgili, 2020. http://hdl.handle.net/10803/670221.

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Aquesta tesi doctoral se centra principalment en el desenvolupament de nous mètodes catalítics (dòmino) basats en la substitució al·lílica catalitzada per Pd per a la síntesi estereoselectiva de petites molècules funcionals i heterocicles utilitzant un disseny detallat de lligants i substrats. Aquesta tesi està organitzada en cinc capítols: el primer capítol és una introducció general sobre els aspectes bàsics de la química al·lílica. El segon capítol il·lustra el primer mètode general per a la preparació d'èters arílics al·lílics terciaris enantioenriquits mitjançant una eterificación regio-
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Clizbe, Elizabeth Adair. "Assymmetric transition metal-catalyzed allylic substitution reactions." Thesis, University of Liverpool, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.539737.

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Chen, Bocheng. "Double Allylic Substitution of Alkenyl vic-Diol." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASF051.

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La substitution allylique est reconnue comme l'un des outils les plus puissants en synthèse organique pour la construction de liaisons C-C et C-hétéroatome. L'exemple le plus connu est la réaction de Tsuji-Trost, l'allylation de nucléophiles mous catalysée par le palladium, qui a été largement étudiée. Une séquence de double substitution allylique sur un substrat simple pourrait permettre de générer rapidement de la complexité moléculaire en introduisant deux nucléophiles dans une réaction monotope. Cependant, ce type de réaction a rarement été rapportée en raison des difficultés de contrôle à
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Cai, Aijie. "Pd-catalyzed Allylic Substitution for Construction of Quaternary Stereocenters." Doctoral thesis, Universitat Rovira i Virgili, 2019. http://hdl.handle.net/10803/668819.

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Des del primer treball inicial de Tsuji i Trost, hi ha hagut un ràpid progrés durant les últimes dècades en el desenvolupament de lligands quirals i l'abast de reacció dels electròfils i nucleòfils aplicables en reaccions de substitució al·lílica catalitzades per Pd. A més, s'han utilitzat reaccions de substitució al·lílica asimètriques asimètriques catalitzades per Pd en la síntesi total d'una varietat de molècules quirals complexes, proporcionant una evidència sòlida de la utilitat de la metodologia AAA en el control tant de la regio com de l'enantio-selectivitats. Malgrat els nombrosos aven
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Takeda, Momotaro. "Copper-Catalyzed Asymmetric Allylic Substitution with Organo- and Silylboronates." 京都大学 (Kyoto University), 2014. http://hdl.handle.net/2433/188504.

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Baldwin, I. Craig. "New methodology involving allylic substitution and conjugate addition reactions." Thesis, Loughborough University, 1996. https://dspace.lboro.ac.uk/2134/27583.

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Chapter one reviews routes to the generation of α-aminophosphonates and α-aminophosphonic acids. These biologically important compounds are synthesised in both racemic and enantiomerically enriched forms. The second chapter describes the results of conjugate addition reactions of lower order cuprates to diethylvinylphosphonate followed by an electrophilic quench to give a range of alkylphosphonates. The third and fourth chapters are concerned with the generation of enantiomencally enriched α-aminophosphonates and α-aminoesters via palladium catalysed allylic substitution reactions With allyl a
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Dawson, Graham John. "Studies on the stereoselective palladium-catalysed allylic substitution reaction." Thesis, Loughborough University, 1995. https://dspace.lboro.ac.uk/2134/31866.

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This thesis contains the preparation of a new design of ligand for the palladium catalysed allylic substitution reaction. The phosphine oxazoline ligands detailed in the thesis give high levels of enantiocontrol when used in conjunction with symmetrical allyl systems in the palladium catalysed allylic substitution reaction. For unsymmetrical allyl systems the palladium catalysed allylic substitution process proceeds with complete regiocontrol and high levels of stereocontrol are again observed. The products from the palladium catalysed allylic substitution reaction can be readily converted to
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Tosatti, Paolo. "Metal-catalysed asymmetric allylic substitution reactions for array synthesis." Thesis, University of Leeds, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.540583.

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Kawatsura, Motoi. "Palladium-Catalyzed Allylic Substitution with a Monodentate Phosphine Ligand." 京都大学 (Kyoto University), 1998. http://hdl.handle.net/2433/157157.

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本文データは平成22年度国立国会図書館の学位論文(博士)のデジタル化実施により作成された画像ファイルを基にpdf変換したものである<br>Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(理学)<br>甲第7163号<br>理博第1937号<br>新制||理||1043(附属図書館)<br>UT51-98-G92<br>京都大学大学院理学研究科化学専攻<br>(主査)教授 林 民生, 教授 鈴木 仁美, 教授 大須賀 篤弘<br>学位規則第4条第1項該当
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Książki na temat "Allyic substitution"

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Kazmaier, Uli, ed. Transition Metal Catalyzed Enantioselective Allylic Substitution in Organic Synthesis. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-22749-3.

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Kazmaier, Uli. Transition Metal Catalyzed Enantioselective Allylic Substitution in Organic Synthesis. Springer-Verlag Berlin Heidelberg, 2012.

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Persson, Eva. Regiocontrol in copper(I)-catalyzed allylic substitution reactions with Grignard reagents: Mechanistic and synthetic aspects. Acta Universitatis Upsaliensis, 1995.

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Dawson, Graham John. Studies on the stereoselective palladium catalysed allylic substitution reaction. 1995.

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Baldwin, Ian Craig. New methodology involving allylic substitution and conjugate addition reactions. 1996.

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Kazmaier, Uli. Transition Metal Catalyzed Enantioselective Allylic Substitution in Organic Synthesis. Springer, 2013.

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Części książek na temat "Allyic substitution"

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Hartwig, John F., and Mark J. Pouy. "Iridium-Catalyzed Allylic Substitution." In Iridium Catalysis. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-15334-1_7.

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Jegelka, Markus, and Bernd Plietker. "Iron-Catalyzed Allylic Substitutions." In Asymmetric Synthesis II. Wiley-VCH Verlag GmbH & Co. KGaA, 2013. http://dx.doi.org/10.1002/9783527652235.ch42.

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Langlois, Jean-Baptiste, and Alexandre Alexakis. "Copper-catalyzed Enantioselective Allylic Substitution." In Transition Metal Catalyzed Enantioselective Allylic Substitution in Organic Synthesis. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/3418_2011_12.

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Milhau, Ludovic, and Patrick J. Guiry. "Palladium-Catalyzed Enantioselective Allylic Substitution." In Transition Metal Catalyzed Enantioselective Allylic Substitution in Organic Synthesis. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/3418_2011_9.

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Liu, Wen-Bo, Ji-Bao Xia, and Shu-Li You. "Iridium-Catalyzed Asymmetric Allylic Substitutions." In Transition Metal Catalyzed Enantioselective Allylic Substitution in Organic Synthesis. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/3418_2011_10.

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Poli, Giovanni, Guillaume Prestat, Frédéric Liron, and Claire Kammerer-Pentier. "Selectivity in Palladium-Catalyzed Allylic Substitution." In Transition Metal Catalyzed Enantioselective Allylic Substitution in Organic Synthesis. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/3418_2011_14.

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Begouin, Jeanne-Marie, Johannes E. M. N. Klein, Daniel Weickmann, and Bernd Plietker. "Allylic Substitutions Catalyzed by Miscellaneous Metals." In Transition Metal Catalyzed Enantioselective Allylic Substitution in Organic Synthesis. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/3418_2011_15.

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Trost, Barry M., and Matthew L. Crawley. "Enantioselective Allylic Substitutions in Natural Product Synthesis." In Transition Metal Catalyzed Enantioselective Allylic Substitution in Organic Synthesis. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/3418_2011_13.

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Hornillos, Valentín, Jean-Baptiste Gualtierotti, and Ben L. Feringa. "Asymmetric Allylic Substitutions Using Organometallic Reagents." In Progress in Enantioselective Cu(I)-catalyzed Formation of Stereogenic Centers. Springer International Publishing, 2016. http://dx.doi.org/10.1007/3418_2015_165.

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Moberg, Christina. "Molybdenum-Catalyzed and Tungsten-Catalyzed Enantioselective Allylic Substitutions." In Transition Metal Catalyzed Enantioselective Allylic Substitution in Organic Synthesis. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/3418_2011_11.

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Streszczenia konferencji na temat "Allyic substitution"

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Brunel, Jean, Martin Smith, and Sebastien Reymond. "Enantioselective Palladium Catalyzed Allylic Substitution with New Multichiral Centers Monophosphine Ligands." In The 4th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2000. http://dx.doi.org/10.3390/ecsoc-4-01841.

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