Academic literature on the topic 'Diels-Alder type reactions'

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Journal articles on the topic "Diels-Alder type reactions"

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Ayadi, Sameh, and Manef Abderrabba. "Étude DFT des réactions de cycloaddition de type Diels–Alder sur le 4-aza-6-nitrobenzofuroxane." Canadian Journal of Chemistry 85, no. 5 (2007): 331–35. http://dx.doi.org/10.1139/v07-026.

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The purpose of this work is a theoretical study of Diels–Alder reactions between the 4-aza-6-nitrobenzofuroxan 1 with a series of dienophiles 3a–3c. From a thermodynamic and orbital point of view, we discuss the reactivity and the stereoselectivty of these reactions. Activation barriers in the Diels-Alder reactions of compound 1 with a series of dienophiles 3a–3c have been calculated and discussed.Key words: inverse electron demand Diels–Alder (IEDDA), DFT method, 4-aza-6-nitrobenzofuroxane.
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Cabrera-Trujillo, Jorge Juan, and Israel Fernández. "Understanding exo-selective Diels–Alder reactions involving Fischer-type carbene complexes." Organic & Biomolecular Chemistry 17, no. 11 (2019): 2985–91. http://dx.doi.org/10.1039/c9ob00132h.

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Minuti, Lucio, Roberta Selvaggi, Aldo Taticchi, Ming Guo, and Ernest Wenkert. "Diels–Alder reactions of bicyclic, heteroannular dienones." Canadian Journal of Chemistry 70, no. 5 (1992): 1481–85. http://dx.doi.org/10.1139/v92-183.

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Aluminum chloride catalyzed Diels–Alder reactions of bicyclic dienones of the hexalone type with 1,3-butadiene, isoprene, (E)-piperylene, and (E)-1-methoxy-1,3-butadiene are described. Structure analysis of the adducts by NMR spectroscopy is presented. The site-, endo–exo-, and face-selectivity of the reactions are discussed.
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Kell, Arnold J., Christopher C. Montcalm, and Mark S. Workentin. "Photogeneration of a diene template for surface Diels–Alder reactions: Photoenolization of an ortho-methyl-benzophenone-modified Au cluster." Canadian Journal of Chemistry 81, no. 6 (2003): 484–94. http://dx.doi.org/10.1139/v03-031.

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A series of monolayer-protected clusters (MPCs) modified with a photoreactive [4-(11-mercaptoundecyl)-phenyl](2-methylphenyl)methanone (1) moiety have been prepared where 1 is co-absorbed to the MPC surface with dodecanethiol, octadecanethiol, or 11-mercaptoundecanoic acid methyl ester. Upon irradiation the MPC-anchored 1 reacts efficiently through its triplet excited states, yielding 1,4-biradicals that collapse to synthetically useful, long-lived photodienol intermediates, which can be efficiently trapped in Diels–Alder type chemistry by dienophiles — namely, dimethyl acetylenedicarboxylate
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Hornung, Christian H., Miguel Á. Álvarez-Diéguez, Thomas M. Kohl, and John Tsanaktsidis. "Diels–Alder reactions of myrcene using intensified continuous-flow reactors." Beilstein Journal of Organic Chemistry 13 (January 19, 2017): 120–26. http://dx.doi.org/10.3762/bjoc.13.15.

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This work describes the Diels–Alder reaction of the naturally occurring substituted butadiene, myrcene, with a range of different naturally occurring and synthetic dienophiles. The synthesis of the Diels–Alder adduct from myrcene and acrylic acid, containing surfactant properties, was scaled-up in a plate-type continuous-flow reactor with a volume of 105 mL to a throughput of 2.79 kg of the final product per day. This continuous-flow approach provides a facile alternative scale-up route to conventional batch processing, and it helps to intensify the synthesis protocol by applying higher reacti
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Still, Ian W. J., та Donna Kaye T. Wilson. "α-Oxosulfines: reactions with alkenes and alkynes". Canadian Journal of Chemistry 70, № 3 (1992): 964–73. http://dx.doi.org/10.1139/v92-129.

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Thiochroman-4-one 1,1-dioxide has been successfully converted into 3-sulfinylthiochroman-4-one 1,1-dioxide and the reactions of this α-oxosulfine with a series of alkenes have been carefully investigated. The α-oxosulfine was found to react as a Diels–Alder diene with 2-methylpropene, Z- and E-2-butene, 2-ethyl-1-butene, 1-pentene, Z-2-pentene, and cyclopentene and cyclohexene to produce a new group of heterocyclic compounds, the 2,3-dihydro-5H-1,4-oxathiino[3,2-c][1]benzothiopyrans, in yields ranging from 21 to 42%. In all cases, formation of the Diels–Alder adduct was accompanied by a second
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Vichard, Dominique, Taoufik Boubaker, François Terrier, Marie-José Pouet, Julian M. Dust та Erwin Buncel. "The versatile reactivity of 2-aryl-4,6-dinitrobenzotriazole 1-oxides in Diels-Alder type condensations and in σ-complexation - A relationship between superelectrophilicity and pericyclic reactivity". Canadian Journal of Chemistry 79, № 11 (2001): 1617–23. http://dx.doi.org/10.1139/v01-020.

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A two-pronged study of a series of 2-aryl-4,6-dinitrobenzotriazole 1-oxide substrates (2a–c) is reported: Diels–Alder type pericyclic reactivity and covalent hydration to yield Meisenheimer type hydroxy anionic σ-adducts. The most activated benzotriazole 1-oxide 2a is found to exhibit both dienophilic and heterodienic behaviour on treatment with cyclopentadiene, providing a highly functionalized stereoselective diadduct (7). This diadduct is shown to be the result of two consecutive inverse demand Diels–Alder condensations proceeding through the endo mode with a trans addition of two cyclopent
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Suzuki, Ichiro, Masafumi Ando, Rumiko Shimabara, Ai Hirata, and Kei Takeda. "A novel hydrazide type organocatalyst for enantioselective Diels–Alder reactions." Organic & Biomolecular Chemistry 9, no. 8 (2011): 3033. http://dx.doi.org/10.1039/c0ob01138j.

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Chou, Ta-shue, Hong-Chuan Chen, Woei-Chang Yang, Wan-Sheung Li, Ito Chao, and Shwu-Jiuan Lee. "Type-Two Intramolecular Diels−Alder Reactions of Pyrazolo-o-quinodimethanes." Journal of Organic Chemistry 65, no. 18 (2000): 5760–67. http://dx.doi.org/10.1021/jo9917285.

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Xuan, Wen-Jing, Candice Botuha, Bernold Hasenknopf, and Serge Thorimbert. "Chiral Dawson-Type Hybrid Polyoxometalate Catalyzes Enantioselective Diels-Alder Reactions." Chemistry - A European Journal 21, no. 46 (2015): 16512–16. http://dx.doi.org/10.1002/chem.201502839.

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Dissertations / Theses on the topic "Diels-Alder type reactions"

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MacDonald, Kristy. "The synthesis of trifluoroalkylated pyridine derivatives over H-form zeolites." Thesis, University of Liverpool, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367057.

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Muscroft-Taylor, Andrew Clive. "Investigations of the type ii intramolecular Diels-Alder reaction directed toward natural product synthesis." Thesis, University of Canterbury. Chemistry, 2006. http://hdl.handle.net/10092/1290.

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This thesis describes synthetic studies directed towards the total synthesis of the nakafuran and florlide marine natural products. Chapter One provides an overview of the importance of natural products to current medicinal chemistry and describes how the "supply issue" associated with these biologically derived compounds can be resolved through the process of total synthesis. Two families of marine natural products, the nakafurans and the florlides, are introduced as synthetic targets and strategies utilising a type II intramolecular Diels-Alder (IMDA) reaction to achieve their total synthesi
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Lee, Sharon Kim. "Enantioselective (Formal) Aza-Diels-Alder Reactions with Danishefsky's Diene and Non-Danishefsky Type Dienes." Thesis, 2012. https://doi.org/10.7916/D84Q8228.

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Highly functionalized piperidines represent an important class of heterocycles that are found in natural products and medicinally active agents. As a direct result, efforts to develop enantioselective diene-imine (aza-Diels-Alder) reactions to efficiently access these substructures have increased. We have developed highly enantioselective silicon Lewis acid mediated formal aza-Diels-Alder reactions with Danishefsky's diene and non-Danishefsky's dienes to generate these biologically important heterocycles. To further prove the power of this method to access complex piperidine structures, we
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Chen, Hong-Chuan, and 陳宏銓. "I. Syntheses and Reactions of Heteroaromatic Fused 3-Sulfolenes II. Type II Intramolecular Diels-Alder Reactions of Fused 3-Sulfolenes." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/91118543402493749724.

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博士<br>國立臺灣大學<br>化學系研究所<br>85<br>The syntheses of oxazolo-,quinolo- and isoquinolo-3-sulfolenes and their deriv atives that can be used to generate the corresponding o-dimethylene heteroarom atics(DMHAs) from 3-sulfolene derivatives and 3-methoxycarbonyl-4-oxotetrahydr othiophene are described.Treatment of 3-benzamido-4-oxotetrahydrothiophene 1,1 -dioxide with PCl5 gives the desired oxazolo-3-sulfolene. Condensation of anil ine and 3-methoxycarbonyl-4-oxotetrahydrothiophene, followed by cyclization, a lkyl
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Lee, Jihoon. "Application of the silicon-directed annulation reactions to the total synthesis of natural products & studies directed toward the total synthesis of leiodolide A: preparation of the C13-C29 fragment." Thesis, 2013. https://hdl.handle.net/2144/14144.

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Brevisamide was isolated from the red tide dinoflagellate Karenia brevis in 2007. Key features of brevisamide include a substituted tetrahydropyran core and conjugated 3,4-dimethylhepta-2,4-dienal side chain. Total synthesis of brevisamide was highlighted by a stereoselective [4+2]-annulation of a (Z)-crotyl silane to furnish the substituted pyran core and Negishi cross-coupling to construct the conjugated dienal side chain. Successful application of the silane-based annulation methodology provided brevisamide in overall 17 steps and 6.4% overall yield from the known (Z)-crotyl silane. Isat
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Books on the topic "Diels-Alder type reactions"

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Kong, Sukbin. Studies on the decalin type sesquiterpenoid system: Synthetic methodologies and applications. 1985.

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Book chapters on the topic "Diels-Alder type reactions"

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Chen, Chuan-Feng, and Yun Shen. "Diels–Alder and Friedel–Crafts-Type Reactions." In Helicene Chemistry. Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-53168-6_4.

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Yanagisawa, A. "Diels–Alder-Type Reactions." In Science of Synthesis Knowledge Updates KU 2010/4. Georg Thieme Verlag KG, 2010. http://dx.doi.org/10.1055/sos-sd-107-00227.

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Jubault, P., E. Leclerc, and J. C. Quirion. "1,2-Photoaromatization Reaction of an Azabicyclohexane-Type Diels–Alder Adduct." In Ene-X Compounds (X=S, Se, Te, N, P). Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-033-00629.

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Conference papers on the topic "Diels-Alder type reactions"

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Li, Ming, Tae-Ho Yoon, and Dong-Pyo Kim. "Novel Inorganic Polymer Derived Microfluidic Devices: Materials, Fabrication, Microchemical Performance." In ASME 2009 7th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2009. http://dx.doi.org/10.1115/icnmm2009-82136.

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We introduce the successful fabrication of inorganic polymer derived microchannels with organic solvent resistance and optical transparency, via economic micro-molding process by using two types of source materials: commercial polyvinylsilazane (HTT1800 Kion Corp.), or allylhydropolycarbosilane (SMP-10, Starfire Co.). And we demonstrated the reliable microchemical performance in various organic solvents such as THF, DMF and acetonitrile at elevated temperatures. Knovenagel and Diels-Alder reactions were successfully run by pressured-driven flow in 2 cm and 16 cm long channel, respectively. It
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