Academic literature on the topic 'Chiral diene'

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Journal articles on the topic "Chiral diene"

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ENDO, Akihisa, Masashi FUNATSU, and Yoshinobu INOUYE. "Diene Cyclization toward Chiral Acyliminium Ions." NIPPON KAGAKU KAISHI, no. 4 (1996): 416–18. http://dx.doi.org/10.1246/nikkashi.1996.416.

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Dong, Han-Qing, Ming-Hua Xu, Chen-Guo Feng, Xing-Wen Sun, and Guo-Qiang Lin. "Recent applications of chiral N-tert-butanesulfinyl imines, chiral diene ligands and chiral sulfur–olefin ligands in asymmetric synthesis." Organic Chemistry Frontiers 2, no. 1 (2015): 73–89. http://dx.doi.org/10.1039/c4qo00245h.

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Nagamoto, Midori, and Takahiro Nishimura. "Asymmetric Transformations under Iridium/Chiral Diene Catalysis." ACS Catalysis 7, no. 1 (2016): 833–47. http://dx.doi.org/10.1021/acscatal.6b02495.

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Bercich, Mark D., Richard C. Cambie, and Peter S. Rutledge. "Experiments Directed Towards the Synthesis of Anthracyclinones. XXXIV Hetero-Diels - Alder Reactions Using Chiral Boron and Titanium Reagents." Australian Journal of Chemistry 52, no. 9 (1999): 851. http://dx.doi.org/10.1071/ch98181.

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Reactions between benzaldehyde or o-anisaldehyde and a series of silyloxy dienes catalysed by the chiral acyl- oxyborane (CAB) complex (4) give high yields of enantioselective products from a Mukaiyama aldol rather than a hetero-Diels–Alder reaction. Attempts to effect a similar catalytic reaction with anthraquinone aldehydes were unsuccessful but use of 2 equiv. of the CAB complex (1) followed by cyclization promotes a formal hetero- Diels–Alder reaction between the aldehyde (7) and the diene (12) to give the dihydropyrone (24) in 45% yield and with a 79% e.e. in favour of the 2'R enantiomer.
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Sun, Yu-Tuo, Dong-Xing Zhu, Xiaofeng Rao, and Ming-Hua Xu. "The enantioselective construction of trifluoromethylated quaternary stereocenters via the Rh-catalyzed asymmetric dehydrated arylation of unprotected hemiaminals." Organic Chemistry Frontiers 7, no. 2 (2020): 340–44. http://dx.doi.org/10.1039/c9qo01203f.

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Min, Hyemin, Hiroyuki Miyamura, Tomohiro Yasukawa, and Shū Kobayashi. "Heterogeneous Rh and Rh/Ag bimetallic nanoparticle catalysts immobilized on chiral polymers." Chemical Science 10, no. 32 (2019): 7619–26. http://dx.doi.org/10.1039/c9sc02670c.

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We have developed novel heterogeneous chiral Rh and Rh/Ag NP catalysts immobilized on a chiral diene-containing polymer. The catalysts showed high activity in asymmetric reactions in both batch and flow systems.
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Yamaguchi, Hiroshi, Saburo Nakanishi, Nobuhiro Kihara та Toshikazu Takata. "Chiral Recognition with Crown Ethers Having Planar Chiral (η4-Diene)tricarbonyliron Moieties". Chemistry Letters 32, № 4 (2003): 410–11. http://dx.doi.org/10.1246/cl.2003.410.

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Shintani, Ryo, and Tamio Hayashi. "ChemInform Abstract: Chiral Diene Ligands for Asymmetric Catalysis." ChemInform 41, no. 26 (2010): no. http://dx.doi.org/10.1002/chin.201026238.

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Du, H., and Z. Cao. "Rhodium Chiral Diene Catalyzed Asymmetric Arylation of Aldimines." Synfacts 2010, no. 09 (2010): 1038. http://dx.doi.org/10.1055/s-0030-1257992.

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Liu, Zuosheng, Jiong Lan, Yulin Li, Yacheng Xing, and Wen Cen. "Total Partial Synthesis of (3S, 6S)-(+)-3,7-Dimethyl-6-hydroxy-3-acetoxyocta-1,7-diene and (3S, 6S)-(-)-3,7-Dimethylocta-1,7-diene-3,6-diol from Geraniol." Journal of Chemical Research 23, no. 5 (1999): 324–25. http://dx.doi.org/10.1177/174751989902300514.

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The synthesis of (3 S, 6 S)-(+)-3,7-dimethyl-6-hydroxy-3-acetoxyocta-1,7-diene and (3 S, 6 S)-(-)-3,7-dimethylocta-1,7-diene-3,6-diol via the rearrangement of the chiral 2,3-epoxy alcohol, with the system Ph3P, pyridine, I2 and H2O, is described.
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Dissertations / Theses on the topic "Chiral diene"

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Older, Jamie Edward John. "Asymmetric induction of n4-iron diene complexes." Thesis, University of East Anglia, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368217.

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The use of tricarbonyliron chemistry in asymmetric synthesis is of increasing importance. With this comes the need for efficient and reliable techniques for the production of enantiopure starting materials. The methods currently available, although effective, are often long winded and wasteful. The development of a chiral hydride abstraction reagent analogous to the triphenylcarbenium species would be of great value in terms of improved yields and simplification of strategy. This thesis details the development of a system based around the dibenzosuberane frame-work. Two different chiral biases
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Ichikawa, Yoshitaka. "Synthesis of Optically Active Helical Polyacetylenes through Rhodium/Chiral Diene-Catalyzed Asymmetric Polymerization of Achiral Monomers." 京都大学 (Kyoto University), 2011. http://hdl.handle.net/2433/142579.

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Cayir, Merve. "Synthesis Of Chiral Diene Systems Via Ring Closing Enyne Metathesis And Their Applications In Diels-alder Reactions." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/3/12612149/index.pdf.

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The main subject of this thesis is synthesis of chiral diene systems via Ring Closing Enyne Metathesis (RCEM). Furan and thiophene carbaldehydes were chosen as starting compounds. As a result of allylation and propargylation reaction of these aldehydes targeting racemic heteroaryl substituted homoallylic and homopropargylic alcohols were synthesized. Enantiomerically enriched alcohols were obtained by enzymatic resolution method with different enzymes (PS-II, Lipozyme) with the high enantiomeric excess values. Absolute configurations of all alcohols are known. O-allylation and O-propargylation
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Okamoto, Kazuhiro. "Development of new synthetic methods of chiral diene ligands and their application to rhodium-catalyzed asymmetric addition reactions." 京都大学 (Kyoto University), 2009. http://hdl.handle.net/2433/126557.

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Nagaosa, Makoto. "Development of Chiral Tetrafluorobenzobarrelene Ligands and Kinetic Studies on the Rhodium/Diene-catalyzed Addition Reaction of Arylboron Reagents." 京都大学 (Kyoto University), 2012. http://hdl.handle.net/2433/158096.

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Otomaru, Yusuke. "Preparation of new C2-symmetric chiral diene ligands and their use for rhodium-catalyzed asymmetric addition of organoboron reagents." 京都大学 (Kyoto University), 2005. http://hdl.handle.net/2433/144596.

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Serpier, Fabien. "Diènes chiraux dans les réactions de carbocyclisation asymétriques en cascade pour la formation d'hétérocycles azotés." Thesis, Paris 6, 2015. http://www.theses.fr/2015PA066596/document.

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Ce manuscrit présente le développement de nouvelles réactions énantiosélectives d’addition-carbocyclisation en cascade initiées par des acides boroniques pour la formation d’hétérocycles azotés chiraux. Les premiers travaux ont permis d’accéder à des pyrrolidines et des pipéridines énantioenrichies à partir d’énynes-1,6 et -1,7 possédant un alcyne en tant que point d’entrée et un ester α,β-insaturé comme seconde fonction électrophile. Une seconde réaction d’addition-carbocyclisation de céto-esters a également été mise au point pour conduire à des pipéridines chirales possédant trois centres st
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Selmani, Aymane. "Réactions en cascade catalysées par le rhodium : nouvelles voies d'accès à des carbocycles et hétérocycles chiraux." Thesis, Sorbonne université, 2019. https://accesdistant.sorbonne-universite.fr/login?url=http://theses-intra.upmc.fr/modules/resources/download/theses/2019SORUS372.pdf.

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Ce manuscrit présente le développement de nouvelles réactions énantiosélectives d’insertion-carbocyclisation en cascade, catalysées par le rhodium(I) et initiées par les acides boroniques, pour la formation d’hétéro- et de carbocycles chiraux fonctionnalisés. Pour ces transformations asymétriques, les diènes chiraux, notamment les ligands Ar-MSBod, sont les plus adaptés et permettent d’atteindre des énantiosélectivités élevées, ce qui a conduit à la conception d’une voie alternative de synthèse de ces diènes monosubstitués. Les premiers travaux ont porté sur la préparation de cycles à cinq cha
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Gebauer, Markus. "Synthesis and Diels-Alder reactions of Chiral 1,3-Dienes." Adelaide, 1996. http://hdl.handle.net/2440/18734.

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Luo, Yunfei. "Chemoenzymatic synthesis of C2 symmetric chiral dienes for asymmetric catalysis." Thesis, University of Liverpool, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.539483.

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Books on the topic "Chiral diene"

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Wang, Yao. Synthesis of Chiral Benzimidazolylidenes from 1,10-Phenathrolines and 1,10-Phenathroline-2,9-dione. Brock University, Dept. of Chemistry, 2007.

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Vosen, Patrick, Riccarda Schönsee, Anja Bemnarek, et al. Aufbruch ins sozialistische Paradies – Propagandaplakate der frühen Volksrepublik China: Ausstellung in der Universitätsbibliothek Bochum 2. März - 10. April 2018. Edited by Christine Moll-Murata and Andreas Seifert. Universitätsbibliothek der Ruhr-Universität Bochum, 2018. http://dx.doi.org/10.46586/rub.157.133.

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Die 1950er Jahre waren eine Zeit der Kampagnen zur Industrialisierung, Modernisierung und der Verwirklichung der sozialistischen Vision. Was Realität werden sollte, zeigen die Propagandaplakate. Die Studierenden des Seminars Plakatkunst und Propaganda in der frühen Volksrepublik China haben beispielhafte Exemplare der groß angelegten Kampagnen aus der Plakatsammlung des Amsterdamer International Institute of Social History ausgewählt. Diese haben sie im Hinblick auf ihren historischen Kontext untersucht und die Ergebnisse auf zusätzlichen Infoplakaten zusammengefasst. Der Katalog zeigt die Exp
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Book chapters on the topic "Chiral diene"

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Oliva, Mara. "Challenge One: Dien Bien Phu and the Geneva Conference of 1954." In Eisenhower and American Public Opinion on China. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-76195-4_4.

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Lukaszuk, Piotr. "Wie verschleiert China den Protektionismus?" In Die Wirtschaft im Wandel. Springer Fachmedien Wiesbaden, 2021. http://dx.doi.org/10.1007/978-3-658-31735-5_17.

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ZusammenfassungWenn Freihandel und Wettbewerb zusammenspielen, können sich die Länder am ehesten auf das spezialisieren, was sie am besten können. Alle gewinnen. Doch die protektionistische Verlockung ist groß, die eigene Wirtschaft auf Kosten anderer zu schützen. Dem soll die WTO einen Riegel vorschieben, indem sie Importzölle und andere Handelsbeschränkungen weltweit abbaut. Doch der Einfallsreichtum der Protektionisten kennt keine Grenzen. Sie weichen unter anderem auf Exportbeschränkungen aus. Kann es protektionistisch sein, den Export einzelner Branchen zu behindern und damit den Markt anderen Ländern zu überlassen? Der Schachzug besteht darin, mit Export- und Absatzbeschränkungen den Preis in dieser Branche zu drücken und damit die heimischen Vorleistungen für die eigentlich strategisch wichtigen Branchen zu verbilligen! Auch damit kann man den Schlüsselbranchen auf dem Weltmarkt einen unfairen Wettbewerbsvorteil verschaffen. Diese gelenkte Industriepolitik ist protektionistisch und weltweit im Vormarsch, in China und in anderen Ländern.Jason Garred (2018), The Persistence of Trade Policy in China after WTO Accession, Journal of International Economics 114, S. 130–142.
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Ojima, I., A. T. Vu, and D. Bonafoux. "Synthesis of Cationic Chiral Diene Complexes." In Compounds with Transition Metal-Carbon pi-Bonds and Compounds of Groups 10-8 (Ni, Pd, Pt, Co, Rh, Ir, Fe, Ru, Os). Georg Thieme Verlag KG, 2001. http://dx.doi.org/10.1055/sos-sd-001-00450.

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Taber, Douglass. "Intermolecular and Intramolecular Diels-Alder Reactions: (-)-Oseltamivir (Fukuyama), Platensimycin (Yamamoto) and 11,12-Diacetoxydrimane (Jacobsen)." In Organic Synthesis. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199764549.003.0078.

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Powerful methods for catalytic, enantioselective intermolecular Diels-Alder reactions have been developed. Ben L. Feringa and Gerard Roelfes of the University of Groningen have shown (Organic Lett. 2007, 9, 3647) that a catalyst prepared by combining salmon testes DNA with a Cu complex directed the absolute sense of the addition of 1 to cyclopentadiene 2 . Mukund P. Sibi of North Dakota State University has reported (J. Am. Chem. Soc . 2007, 129 , 395) related work with achiral pyrazolidinone dienophiles and chiral Cu catalysts. Tohru Fukuyama of the University of Tokyo found (Angew. Chem. Int. Ed . 2007, 46, 5734) that the MacMillan catalyst 5 was effective at mediating the addition of acrolein 4 to the pyridine-derived diene 3, enabling an enantioselective synthesis of the prominent antiviral (-)-oseltamivir (tamiflu) 7. Hisashi Yamamoto of the University of Chicago has demonstrated (J. Am. Chem. Soc . 2007, 129, 9534 and 9536) that the novel catalyst 10 effected addition of methyl acrylate 9 to the diene 8, leading to an elegant enantioselective synthesis of the tetracycle 12, the key intermediate in the Nicolaou synthesis of platensimycin. New illustrations of the power of the intramolecular Diels-Alder reaction have been put forward. Demonstrating the influence of a single subsituent on the tether, William R. Roush of Scripps/Florida found (Organic Lett . 2007, 9, 2243) that cyclization of 13 led to the diastereomer 14, complementary to the result observed with an acyclic triene. Ryo Shintani and Tamio Hayashi of Kyoto University have extended (Angew. Chem. Int. Ed . 2007, 46, 7277) their studies of chiral diene-based Rh catalysts to the enantioselective cyclization of alkynyl dienes such as 16. Jonathan W. Burton of the University of Oxford and Andrew B. Holmes of the University of Melbourne employed (Chem. Commun . 2007, 3954) the MacMillan catalyst 5 for the cyclization of 18 to 19. It is impressive that ent- 5 catalyzed the cyclization of 18 cleanly into the diastereomer of 19 in which both of the newly-created stereogenic centers were inverted.
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Taber, Douglass. "Intermolecular and Intramolecular Diels-Alder Reactions: Platencin (Banwell), Platensimycin (Matsuo), (-)-Halenaquinone (Trauner), ( + )-Cassaine (Deslongchamps)." In Organic Synthesis. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199764549.003.0079.

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José Barluenga of the Universidad de Oviedo described (Organic Lett. 2008, 10, 4469) a powerful route from lithiated arenes such as 1 to the benzocyclobutane 3, the immediate precursor to the powerful o-quinone methide Diels-Alder diene. Michael E. Jung of UCLA developed (Organic Lett. 2008, 10, 3647) a triflimide catalyst for the inverse electron demand coupling of the highly substituted diene 4 with the enol ether 5 to give 6 with high diastereocontrol. Joseph M. Fox of the University of Delaware showed (J. Org. Chem. 2008, 73, 4283) that the cyclopropene carboxylate 8 was a powerful and selective dienophile. Richard P. Hsung and Kevin P. Cole of the University of Wisconsin finally (Adv. Synth. Cat. 2008, 350, 2885) reduced to practice the long-sought enantioselective Diels-Alder cycloaddition of a trisubstituted aldehyde, 11. Li Deng of Brandeis University devised (J. Am. Chem. Soc. 2008, 130, 2422) a Cinchona -derived catalyst for Diels-Alder cycloaddition to the diene 13 with high ee. Miguel Á. Sierra of the Universidad Complutense, Madrid, and Alejandra G. Suárez of the Universidad Nacional de Rosario described (Organic Lett. 2008, 10, 3389) a clever switchable chiral auxiliary 16 that favored diastereomer S-18 on thermal addition, but R-18 with EtAlCl2. New approaches to the intramolecular Diels-Alder reaction continue to be introduced. Mathias Christmann, now at the TU Dortmund, showed (Angew. Chem. Int. Ed. 2008, 47, 1450) that a secondary amine organocatalyst converted the prochiral dialdehyde 19 into the bicyclic diene 20 with high de and ee. Martin G. Banwell of the Australian National University prepared (Organic Lett. 2008, 10, 4465) the triene 21 in high ee by microbiological oxidation of iodobenzene. On warming, 21 was converted smoothly into 22, which was carried on in a formal synthesis of platencin. Jun-ichi Matsuo of Kanazawa University was able (Organic Lett. 2008, 10, 4049) to induce (neat, 180 °C) the intermolecular Diels-Alder cycloaddition of 23 with 24, delivering the cycloadduct 25 with 11:1 diastereocontrol.
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Seibel, Zara M., and Tristan H. Lambert. "Construction of Alkylated Stereocenters." In Organic Synthesis. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190646165.003.0035.

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Hirohisa Ohmiya and Masaya Sawamura at Hokkaido University reported (Angew. Chem. Int. Ed. 2013, 52, 5350) the copper-catalyzed, γ-selective allylation of terminal alkyne 1 to produce the chiral skipped enyne 3 with high ee. A method to synthe­size asymmetric skipped diene 6 via copper-catalyzed allylic allylation of diene 4 was developed (Chem. Commun. 2013, 49, 3309) by Ben L. Feringa at the University of Groningen. Prof. Feringa also disclosed (J. Am. Chem. Soc. 2013, 135, 2140) the regi­oselective and enantioselective allyl–allyl coupling of bromide 7 with allyl Grignard under Cu catalysis in the presence of phosphoramidite 8. James P. Morken of Boston College reported (Org. Lett. 2013, 15, 1432) the cross-coupling of allylboronate 11 with a mixture of alkenes 10a,b under palladium catalysis to produce diene 13 with high ee. Jian Liao at the Chengdu Institute of Biology Chinese Academy of Sciences and the University of Chinese Academy of Sciences reported (Angew. Chem. Int. Ed. 2013, 52, 4207) the palladium-catalyzed allylic alkylation of indole using the chi­ral bis(sulfoxide) phosphine ligand 15. Yi-Xia Jia at the Zhejiang University of Technology reported (J. Am. Chem. Soc. 2013, 135, 2983) the enantioselective alkyl­ation of indole to produce the trifluoromethyl adduct 19 using nickel catalysis in the presence of bisoxazoline ligand 18. Sarah E. Reisman at the California Institute of Technology disclosed (J. Am. Chem. Soc. 2013, 135, 7442) the reductive cross-coupling of acid chloride 20 and benzyl chloride 21 using a nickel complex with bisoxazoline ligand 22 and manganese(0) as reductant. Ilan Marek at the Technion-Israel Institute of Technology reported (Angew. Chem. Int. Ed. 2013, 52, 5333) a method for the construction of all-carbon quaternary stereocenters, such as the one present in aldehyde 25, using a diastereoselective car­bometallation of cyclopropene 24 followed by oxidation and ring opening. Switching from methyl Grignard and copper iodide to MeCuCNLi reverses the diastereoselec­tivity of the carbometallation and allows access to the opposite enantiomer. Matthew S. Sigman at the University of Utah reported (J. Am. Chem. Soc. 2013, 135, 6830) the redox–relay oxidative Heck arylation of alkenyl alcohol 27 with boronic acid 26 using a palladium catalyst and pyridine oxazole ligand 28 to produce the γ-substituted aldehyde 29.
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Taber, Douglass F. "C–O Ring Construction: The Smith Synthesis of (+)-18-epi-Latrunculol A." In Organic Synthesis. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190646165.003.0046.

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James A. Bull of Imperial College London showed (Angew. Chem. Int. Ed. 2014, 53, 14230) that the malonate 1 could readily be cyclized to the oxetane 2. Davide Ravelli of the University of Pavia functionalized (Adv. Synth. Catal. 2014, 356, 2781) the α position of the oxetane 3 with 4, leading to 5. Frank Glorius of the Westfälische Wilhelms-Universität Münster hydrogenated (Angew. Chem. Int. Ed. 2014, 53, 8751) the furan 6 to give 7 in high ee. Jia-Rong Chen and Wen-Jing Xiao of Central China Normal University converted (Eur. J. Org. Chem. 2014, 4714) the initial Henry adduct from 8 into the cyclic ether 9. Anil K. Saikia of the Indian Institute of Technology, Guwahati cyclized (J. Org. Chem. 2014, 79, 8592) the ene–yne 10 to the ketone 11. Richard C. D. Brown of the University of Southampton developed (Org. Lett. 2014, 16, 5104) a chiral auxiliary that effectively directed the oxidative cyclization of the diene 12 to 13. The chiral auxiliary could be recovered and reused. K. A. Woerpel of New York University showed (Org. Lett. 2014, 16, 3684) that, depending on the solvent, 15 could be added to 14 to give either 16 or 17. Samuel J. Danishefsky of Columbia University and the Memorial Sloan-Kettering Cancer Center also observed (Chem. Eur. J. 2014, 20, 8731) a marked solvent effect on the diastereoselectivity of the reduction of 18 to 19. Xiaoming Feng of Sichuan University added (Chem. Eur. J. 2014, 20, 14493) the ketone 20 to Danishefsky’s diene 21 to give 22 in high ee. Jhillu Singh Yadav of the Indian Institute of Chemical Technology effected (Tetrahedron Lett. 2014, 55, 3996) intramolecular opening of the oxetane of 23 to give, with clean inversion, the cyclic ether 24. Chun-Yu Ho of the South University of Science and Technology, taking advan­tage (J. Org. Chem. 2014, 79, 11873) of the superior chelating ability of the allyl ether, selectively cyclized 25 to 26. Xuegong She of Lanzhou University used (Angew. Chem. Int. Ed. 2014, 53, 10789) a gold catalyst to convert 27 into the eight-membered ring ether 28.
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Wong, Y. S. "Chiral-Dioxirane-Catalyzed Epoxidation." In 1,3-Dienes. Georg Thieme Verlag KG, 2009. http://dx.doi.org/10.1055/sos-sd-046-00404.

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Wong, Y. S. "Chiral Manganese(III)–salen Catalyzed Epoxidation." In 1,3-Dienes. Georg Thieme Verlag KG, 2009. http://dx.doi.org/10.1055/sos-sd-046-00403.

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Lambert, Tristan H. "Construction of Single Stereocenters." In Organic Synthesis. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190646165.003.0031.

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Haifeng Du at the Chinese Academy of Sciences reported (J. Am. Chem. Soc. 2013, 135, 6810) the borane-catalyzed asymmetric hydrogenation of imine 1 to 2 using the diene 3 as a chiral ligand for boron. A single-enzyme cascade for the reductive transam­ination of acetophenone 4 with amine 5 to produce enantiopure sec-phenethylamine 6 was developed (Chem. Commun. 2013, 49, 161) by Per Berglund at the KTH Royal Institute of Technology in Sweden. A group at Boehringer Ingelheim in Ridgefield, Connecticut, led by Jonathan T. Reeves, disclosed (J. Am. Chem. Soc. 2013, 135, 5565) a procedure for the addition of DMF anion to N-sulfinyl imine 7 to furnish tert-leucine amide 8 with high diastereoselectivity. The tertiary carbinamine 10 was synthesized (Org. Lett. 2013, 15, 34) via the carbolithiation/rearrangement of vinyl­urea 9 as reported by Jonathan Clayden at the University of Manchester. Gregory C. Fu at Caltech reported (Angew. Chem. Int. Ed. 2013, 52, 2525) that the chiral phosphine 12 catalyzed the enantioselective addition of trifluoroacetamide to allene 11 to produce γ-amino ester 13 in enantioenriched form. Adeline Vallribera at the Autonomous University of Barcelona found (Org. Lett. 2013, 15, 1448) that a euro­pium pybox complex effected the highly enantioselective α-amination of β-ketoester 14 to generate 15 on the way to the Parkinson’s disease co-drug L-carbidopa. Hisashi Yamamoto at the University of Chicago and Chubu University reported (J. Am. Chem. Soc. 2013, 135, 3411) that a halfnium(IV) complex of the bishydroxamic acid 17 catalyzed the enantioselective epoxidation of the tertiary homoallylic alcohol 16 to 18. The rearrangement of the allylic carbonate 19 to produce allyl ether 21 with high ee under iridium catalysis in the presence of ligand 20 was disclosed (Org. Lett. 2013, 15, 512) by Hyunsoo Han at the University of Texas, San Antonio. The asymmetric vinylogous aldol reaction of 3-methyl-2-cyclohexen-1-one 22 and α-keto ester 23 to furnish tertiary carbinol 25 using the bifunctional catalyst 24 was developed (Org. Lett. 2013, 15, 220) by Paolo Melchiorre at ICREA and ICIQ in Spain.
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Conference papers on the topic "Chiral diene"

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Vo-Thanh, Giang, Bruce Pégot, Olivier Van Buu, and Didier Gori. "Asymmetric aza-Diels-Alder reaction of Danishefsky’s diene with imines in a chiral reaction medium." In The 10th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2006. http://dx.doi.org/10.3390/ecsoc-10-01378.

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