Relevant bibliographies by topics / Dihydropyrrols

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

Academic literature on the topic 'Dihydropyrrols'

Author: Grafiati
Published: 4 June 2021
Last updated: 9 February 2022

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Journal articles on the topic "Dihydropyrrols"

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Bach, Thorsten, and Harm Brummerhop. "An expedient synthesis ofN-acceptor-substituted 2,3-dihydropyrrols from the corresponding 2-pyrrolidinones." Journal für praktische Chemie 341, no. 3 (1999): 312–15. http://dx.doi.org/10.1002/(sici)1521-3897(199904)341:3<312::aid-prac312>3.0.co;2-2.

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Bach, Thorsten, and Harm Brummerhop. "ChemInform Abstract: An Expedient Synthesis of N-Acceptor-Substituted 2,3-Dihydropyrrols from the Corresponding 2-Pyrrolidinones." ChemInform 30, no. 31 (2010): no. http://dx.doi.org/10.1002/chin.199931137.

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Bach, Thorsten, and Harm Brummerhop. "Ungewöhnliche faciale Diastereoselektivität in der Paternò-Büchi-Reaktion eines chiralen Dihydropyrrols – eine kurze Totalsynthese von (+)-Preussin." Angewandte Chemie 110, no. 24 (1998): 3577–79. http://dx.doi.org/10.1002/(sici)1521-3757(19981217)110:24<3577::aid-ange3577>3.0.co;2-3.

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Saalfrank, Rolf W., Jochen Nachtrab, and Stephan Reck. "Synthese und Aggregatbildung eines 5-Hydroxy-2,5-dihydropyrrols. Enantiomerenreine, eindimensionale Stränge durch Wasserstoffbrückenbindungen und chiroselektive Selbstorganisation/Synthesis and Aggregation of a 5-H ydroxy-2,5-dihydropyrrole. Enantiomerically Pure, One-dimensional Strands via Hydrogen Bonds and Chiroselective Self Organization." Zeitschrift für Naturforschung B 54, no. 2 (1999): 179–86. http://dx.doi.org/10.1515/znb-1999-0205.

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Reaction of dimethyl 1,3-acetonedicarboxylate 8 with oxalylchloride 2 and magnesium chloride as catalyst yielded 2,3-dioxo-2,3-dihydrofuran 9, which is in equilibrium with tautomer 10 (9:10 = 1:2). Addition of thionyl chloride to a mixture of 9/10 afforded 3-chloro-2(5H)-furanone 11. The structure of 11 was unequivocally established by X-ray diffraction, which indirectly proved the structure of 10 as well. Ring opening of 11 by nucleophilic attack with benzylamine 14 in C2-position and subsequent recyclization led to racemic 3-chloro-5-hydroxy-2-oxo-2,5-dihydropyrrole 15. According to a single
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Reissig, Hans-Ulrich, Arndt Hausherr, and Reinhold Zimmer. "Additions of Carbohydrate-Derived Alkoxyallenes to Imines and Subsequent Reactions to Enantiopure 2,5-Dihydropyrrole Derivatives." Synthesis 51, no. 02 (2018): 486–99. http://dx.doi.org/10.1055/s-0037-1609942.

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The additions of six alkoxyallenes bearing carbohydrate-derived chiral auxiliaries to imines were systematically studied. The reactions of three lithiated 1-alkoxypropa-1,2-dienes with an N-tosyl imine revealed that the diacetone fructose-derived auxiliary provided the highest diastereoselectivity of 91:9. The preferred absolute configuration of the newly formed stereogenic center was determined by subsequent ozonolysis of the allene moiety, transesterification and comparison with literature data. The analogous reactions of three axially chiral 3-nonyl-substituted 1-alkoxyallenes with these au
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Singh, Mandavi, Shyam Babu Singh, Shahin Fatma, Preyas Ankit, and Jagdamba Singh. "Development of five membered heterocyclic frameworks via [3+2] cycloaddition reaction in an aqueous micellar system." New J. Chem. 38, no. 7 (2014): 2756–59. http://dx.doi.org/10.1039/c4nj00325j.

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A series of novel dihydropyrrolo[2,1-a]isoquinolines and dihydropyrrolo[1,2-a]quinolines have been synthesized from isoquinolines/quinolines, various substituted phenacyl bromides and substituted dialkylacetylenedicarboxylates via [3+2] cycloaddition reaction.
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Guesmi, A., and N. Ben Hamadi. "Remarkable electronic effect on the total stereoselectivity of the cycloaddition reaction of arylnitrile oxides with pyrrol-2-one derivatives." Heterocyclic Communications 25, no. 1 (2019): 60–65. http://dx.doi.org/10.1515/hc-2019-0014.

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AbstractThe regiospecific 1,3-dipolar cycloaddition of 1,5-dihydropyrrol-2-one and arylnitrile oxides derivatives have been investigated. The asymmetric induction expected by the chiral centre of the 5-hydroxy-3-methyl-1,5-dihydropyrrol-2-one derivatives was very effective, single diastereoisomers anti-3 was formed. The diastereoselectivity was linked to the destabilization of the syn transition state as a result of the electrostatic repulsion between the hydroxy group of the dihydropyrrol-2-one derivatives and the atom oxygen of the dipole.
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Kreher, Richard P., та Gerald Dyker. "Struktur und Reaktivität von isoanellierten heterocyclischen Systemen mit Anπ- und (4n+2)π-Elektronen, XII [1]. 2-tert-Butyl-4-methyl-2,4-dihydropyrrolo[3,4-b]indole: Tricyclische Hetarene mit isoanellierten Pyrrolringen / Structure and Reactivity of Isoannelated Heterocyclic Systems with 4nπ- and (4n+2)π-Electrons, XII [1] 2-terr-Butyl-4-methyl-2,4-dihydropyrrolo[3,4-b]indoles: Tricyclic Hetarenes with Isoannelated Pyrrole Rings". Zeitschrift für Naturforschung B 42, № 4 (1987): 473–77. http://dx.doi.org/10.1515/znb-1987-0414.

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2-tert-Butyl-4-methyl-2,4-dihydropyrrolo[3,4-b]indole (4a) has been prepared via selective reduction of 2-rm-butyl-4-methyl-2,4-dihydropyrrolo[3,4-b]indol-l(2H)-one or -3(2H)-one 5 and 6 with diisobutylaluminiumhydride. The same precursors 5 and 6 can be transformed into 2-tert-butyl-4-methyl-2,4-dihydropyrrolo[3,4-b]indoles (4b) and (4c) bearing a methoxy group in 1- or 3-position via a two step procedure consisting in O-alkylation and CH-deprotonation. NMR Investigations afford an insight into the structure of the stable tricyclic hetarenes.
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Sonesson, Clas, and Anders Hallberg. "Preparation of N-Formyl- and N-carbomethoxy-2,3-dihydropyrroles by palladium-catalyzed isomerization of the corresponding N-acyl-2,5-dihydropyrrole." Tetrahedron Letters 36, no. 25 (1995): 4505–6. http://dx.doi.org/10.1016/0040-4039(95)00770-d.

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Guo, Yong En, Xiao Guang Niu, Cai Ju Zhou, Jie Chu, Wei Wei Xu, and Guo Zhen Fang. "Design and Preparation of 1H-3, 4-Dihydropyrrolo[1,2-a] Pyrazin-1-One via 1H-3,4-Dihydropyrrolo[1,2-C] [1,4] Oxazin-1-One Route." Advanced Materials Research 343-344 (September 2011): 1242–47. http://dx.doi.org/10.4028/www.scientific.net/amr.343-344.1242.

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With 2-pyrrolyltrichloroacetone as major starting material, unreported 1H-3,4-dihydropyrrolo- [1,2-a]pyrazin-1-one was prepared successively by its monoesterification with ethylene glycol, bromine displacement of hydroxy group, cyclization to lactone and its amidation. Unreported 7-aroyl-1H-3,4-dihydropyrrolo[1,2-c][1,4]oxazin-1-one compounds were also synthesized in turn by 2-pyrrolyl-trichloroacetone’s Friedel-Crafts acylation and cyclization. Their structures were characterized by IR, 1H NMR, 13C NMR, MS, HRMS, etc.
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Dissertations / Theses on the topic "Dihydropyrrols"

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Bombonato, Fernanda Irene. "Ciclofuncionalização de &#946,-enamino Ésteres e β-hidróxi ésteres." Universidade de São Paulo, 2002. http://www.teses.usp.br/teses/disponiveis/46/46135/tde-24102007-152630/.

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Nosso grupo de pesquisa vem se dedicado, há vários anos, ao estudo das reações de ciclização eletrofílica de substratos insaturados que contêm um nucleófilo interno (oxigênio ou nitrogênio). Este trabalho teve como objetivo obter derivados de éteres cíclicos de cinco e seis membros diferentemente funcionalizados. Compostos 1,3-dicarbonílicos e ß-hidróxi carbonílicos, contendo dupla ligação em posição apropriada, foram submetidos à reação de ciclização mediada tanto por iodo quanto por dimetildioxirana. De maneira semelhante, ß-enamino ésteres alquenilados foram submetidos à reação de io
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Martins, Lucas Michelão. "Estudos sobre a utilização do pentacloreto de nióbio, como ácido de Lewis, visando a síntese de derivados de tetra-aril-1,4-di-hidropirrol[3,2-b]pirroles, com potencial aplicação como corantes sensibilizadores em dispositivos eletrônicos orgânicos." Universidade Estadual Paulista (UNESP), 2018. http://hdl.handle.net/11449/153679.

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Submitted by Lucas Michelão Martins (lmichelaomartins@yahoo.com) on 2018-04-18T20:57:09Z No. of bitstreams: 1 tese doutorado lucas m martins.pdf: 4956302 bytes, checksum: b3d6b99c6519511aa67ed77e0edb7e9d (MD5)<br>Rejected by Minervina Teixeira Lopes null (vina_lopes@bauru.unesp.br), reason: Solicitamos que realize uma nova submissão seguindo as orientações abaixo; - inclusão do número de processo da FAPESP nos agradecimentos e campo de financiamento. Essa informação é obrigatória em todos os trabalhos que receberam apoio financeiro da Instituição. Agradecemos a compreensão. on 2018-04-
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Semyonov, Alexander N. "Design, Synthesis and Characterization of Fluorescent Dyes and Liquid Crystal Semiconductors." Kent State University / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=kent1153556141.

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Charavin, Marine. "Synthèse d'agonistes non-peptidiques du récepteur à la prokinéticine PKR1." Thesis, Strasbourg, 2014. http://www.theses.fr/2014STRAF047/document.

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Les récepteurs couplés aux protéines G représentent la plus grande famille de récepteurs membranaires. Parmi eux, nous avons choisi d’étudier deux récepteurs apparentés : les récepteurs de la prokinéticine 1 et 2. Ces deux récepteurs ont pour ligands des hormones de nature peptidique, divisées en deux sous-groupes : les prokinéticines 1 et 2. Ces deux prokinéticines sont impliquées dans plusieurs processus physiologiques en se liant à leurs récepteurs PKR1 et PKR2. Il a été récemment montré que la prokinéticine 2 pouvait stimuler la prolifération et la différenciation des cellules souches prog
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Wu, Jia-Ying, and 吳佳穎. "Synthesis and Optoelectronic Properties of 2,5-Disubstituted of 1,4-dihydropyrrolo [3,2-b] pyrrole." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/24104226104492632213.

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碩士<br>國立臺灣大學<br>高分子科學與工程學研究所<br>103<br>A series of compounds with pyrrolo [3,2-b] pyrrole-centered have been synthesized, containing triphenylamine, carbazole, and thiophene group at the 2, 5-position. The electrochemical, photophysics and photochemistry properties were investigated. Compound 4 have show potential for electrochemical polymerization, and its electrochromic mechanism has been studied. Compound 1 in the environment with halides proceeds a photochemical reaction and is observed change color. The possible reaction mechanism have been studied by UV-Vis-NIR spectrum analysis, and fur
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Book chapters on the topic "Dihydropyrrols"

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Jubault, P., E. Leclerc, and J. C. Quirion. "Heck Reactions of 2,3-Dihydropyrroles." In Ene-X Compounds (X=S, Se, Te, N, P). Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-033-00645.

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Jubault, P., E. Leclerc, and J. C. Quirion. "Isomerizing Heck Reactions of 2,5-Dihydropyrroles." In Ene-X Compounds (X=S, Se, Te, N, P). Georg Thieme Verlag KG, 2007. http://dx.doi.org/10.1055/sos-sd-033-00646.

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Gallagher, P. T. "Diels–Alder Reactions of 2,4-Dihydropyrrolo[3,4-]indoles." In Fused Five-Membered Hetarenes with One Heteroatom. Georg Thieme Verlag KG, 2001. http://dx.doi.org/10.1055/sos-sd-010-00881.

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Pfeiffer, W. D. "4,5-Dihydropyrrolo[3,2-]benzoselenazoles and 4,5-Dihydroselenazolo[4,5-]quinolines." In Five-Membered Hetarenes with One Chalcogen and One Additional Heteroatom. Georg Thieme Verlag KG, 2002. http://dx.doi.org/10.1055/sos-sd-011-01221.

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Chen, Y. C., and H. L. Cui. "Cascade Reactions Catalyzed by Cinchona Alkaloids by Noncovalent Catalysis: Asymmetric Synthesis of Dihydropyrroles." In Brønsted Base and Acid Catalysts, and Additional Topics. Georg Thieme Verlag KG, 2012. http://dx.doi.org/10.1055/sos-sd-205-00597.

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Schantl, J. G. "Reaction of Dihydropyrrole-Substituted α-Oxo Esters and Acylhydrazines Followed by Intramolecular [3 + 2] Cycloaddition." In Heteroatom Analogues of Aldehydes and Ketones. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-027-00655.

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Conference papers on the topic "Dihydropyrrols"

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Amicangelo, Jay, and Yuan-Pern Lee. "INFRARED SPECTRA OF THE 2,3-DIHYDROPYRROL-2-YL AND 2,3-DIHYDROPYRROL-3-YL RADICALS ISOLATED IN SOLID PARA-HYDROGEN." In 74th International Symposium on Molecular Spectroscopy. University of Illinois at Urbana-Champaign, 2019. http://dx.doi.org/10.15278/isms.2019.fd01.

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Journal articles
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