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Relevant bibliographies by topics / Chiral nitronic acid

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Journal articles
Dissertations / Theses
Book chapters

Academic literature on the topic 'Chiral nitronic acid'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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Journal articles on the topic "Chiral nitronic acid"

1

Fu-An Kang and Cheng-Lie Yin. "Studies on the chemistry of the chiral nitronic acid and nitronic esters." Tetrahedron: Asymmetry 8, no. 21 (1997): 3585–89. http://dx.doi.org/10.1016/s0957-4166(97)00478-3.

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2

Lei, Lei Zhang, and Qiang Feng Zhi. "The stereoselective C-alkylation of chiral nitronic acid (4S*,5R)-(+)-4-(6-nitro6-carbethoxymethyl)-5-[(1R)-menthyloxy]-3,4-dihydro-2(5H)-furano." Journal of Indian Chemical Society Vol. 91, Jul 2014 (2014): 1335–39. https://doi.org/10.5281/zenodo.5726355.

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State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 2 Nanwei Rd., Xicheng Dist., Beijing 100050, P. R. China <em>E-mail</em> : fengzhq@imm.ac.cn <em>Manuscript received online 29 October 2013, accepted 17 February 2014</em> The stereoselective C-alkylation of a chiral nitronic acid (4<em>S</em><sup>*</sup>,5R)-(+)-4-(6-nitro-6-carbethoxymethyl)-5-[(1<em>R</em>)- menthyloxy]-3,4-dihydro-2(<em>5H</em>)-furanone which was generally alkylated by alkyl halide giving single <

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3

Aurich, Hans Günter, Christian Gentes та Ulrich Sievers. "Darstellung chiraler heterocyclischer β-Aminosäureester / Preparation of Chiral Heterocyclic Esters of β-Amino Acids". Zeitschrift für Naturforschung B 54, № 4 (1999): 519–31. http://dx.doi.org/10.1515/znb-1999-0416.

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Chiral β-amino alcohols were successively prone to N-benzylation, O-allylation and oxidation of the resulting benzylamino group to give nitrones 3 which on hydrolysis afforded chiral hydroxylamines HO-NH-CH(R)-CH2-O-CH2-CH=CH2 ((S)-4: R = Me, Bn, iPr. (R)-4: R = Et). Swern oxidation of methyl 2,2-dimethyl-3-hydroxypropionate (16) and treatment of the resulting aldehyde 17 with hydroxylamines (S)-4b (R = Bn) or (R)-4d (R = Et) provided nitrones 18 that underwent an intramolecular 1,3-dipolar cycloaddition on heating yielding the bicyclic β-amino-acid esters 19b and ent-19d, respectively.Reducti

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4

Jin, Yuan, Yasuhiro Honma, Hisashi Morita, Masamichi Miyagawa, and Takahiko Akiyama. "Enantioselective Synthesis of 1-Substituted 1,2,3,4-Tetrahydroisoquinolines through 1,3-Dipolar Cycloaddition by a Chiral Phosphoric Acid." Synlett 30, no. 13 (2019): 1541–45. http://dx.doi.org/10.1055/s-0039-1690108.

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A new approach is described for the asymmetric synthesis of 1-substituted 1,2,3,4-tetrahydroisoquinolines that is based on the enantioselective 1,3-dipolar cycloaddition reaction of a nitrone and a vinyl ether in the presence of a chiral phosphoric acid that gives the chiral tetrahydroisoquinolines in high yields and with high enantioselectivities. 1H and 31P NMR analyses of the mixture of nitrone and chiral phosphoric acid suggest the formation of a 1:1 complex.

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Bădoiu, Andrei, Yasmin Brinkmann, Florian Viton, and E. Peter Kündig. "Asymmetric Lewis acid-catalyzed 1,3-dipolar cycloadditions." Pure and Applied Chemistry 80, no. 5 (2008): 1013–18. http://dx.doi.org/10.1351/pac200880051013.

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Highly tuned, one-point binding chiral iron and ruthenium complexes selectively coordinate and activate α,β-unsaturated aldehydes and ketones toward asymmetric catalytic Diels-Alder cycloaddition reactions. Here we focus on the application of these transition-metal Lewis acids to asymmetric catalytic 1,3-dipolar cycloaddition reaction between enals and cyclic and acyclic nitrones as well as aryl nitrile oxides to give isoxazolidines and isoxazolines, respectively.

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6

Xu, Xichen, Yingjun Zhao, and Di Wu. "Sc(OTf)3-Catalyzed [3+2]-Cycloaddition of Diazoacetoacetate Enones and N-Aryl Nitrones: Diastereoselective Synthesis of Functionalized Isoxazolidines with Three Contiguous Stereogenic Centers." Synthesis 54, no. 09 (2022): 2213–24. http://dx.doi.org/10.1055/s-0041-1737804.

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AbstractA catalytic [3+2]-cycloaddition using Sc(OTf)3 as a Lewis acid catalyst is developed. This catalytic 1,3-dipolar cycloaddition diastereoselectively transforms diazoacetoacetate enones and N-aryl nitrones into highly functionalized isoxazolidines bearing three contiguous chiral centers. The feasibility of the uncatalyzed 1,3-dipolar cycloaddition is postulated by DFT calculations and substantiated experimentally.

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7

Li, Feng, Zhao-Ming Li, Hua Yang та Volker Jäger. "New Approaches to Branched β-Amino α-Hydroxy Acids, Taxol Side-chain Analogs". Zeitschrift für Naturforschung B 63, № 4 (2008): 431–46. http://dx.doi.org/10.1515/znb-2008-0410.

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AbstractThe phenylisothreonine derivatives, taxol side-chain analogs, were synthesized by two routes, one based on the highly stereoselective addition of a phenyl Grignard reagent to the L-threose-derived nitrone 7, and the other using asymmetric α-alkoxyallylation of the ketimine 20 with chiral allyl boron reagents.

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8

Kitanosono, Taku, Pengyu Xu, and Shū Kobayashi. "Chiral Lewis acids integrated with single-walled carbon nanotubes for asymmetric catalysis in water." Science 362, no. 6412 (2018): 311–15. http://dx.doi.org/10.1126/science.aap7883.

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The development of highly reactive and stereoselective catalytic systems is required not only to improve existing synthetic methods but also to invent distinct chemical reactions. Herein, a homogenized combination of nickel-based Lewis acid–surfactant-combined catalysts and single-walled carbon nanotubes is shown to exhibit substantial activity in water. In addition to the enhanced reactivity, stereoselective performance and long-term stability were demonstrated in asymmetric conjugate addition reactions of aldoximes to furnish chiral nitrones in high yields with excellent selectivities. The p

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9

Hashimoto, Takuya, Masato Omote, Taichi Kano, and Keiji Maruoka. "Asymmetric 1,3-Dipolar Cycloadditions of Nitrones and Methacrolein Catalyzed by Chiral Bis-Titanium Lewis Acid: A Dramatic Effect ofN-Substituent on Nitrone." Organic Letters 9, no. 23 (2007): 4805–8. http://dx.doi.org/10.1021/ol702123n.

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Blanáriková, Iva, Lubor Fišera, Zuzana Kopanicková, Piotr Salanski, Janusz Jurczak, and Christian Hametner. "Synthesis of chiral amino acid - derived nitrones and 1,3-dipolar cycloadditions with acrylic acid methyl ester." Arkivoc 2001, no. 5 (2005): 51–59. http://dx.doi.org/10.3998/ark.5550190.0002.507.

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More sources

Dissertations / Theses on the topic "Chiral nitronic acid"

1

Roseblade, Stephen. "Intramolecular asymmetric nitrone cycloadditions in the synthesis of Î² amino acids." Thesis, University of Bristol, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.251146.

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Theddu, Naresh. "APPLICATIONS OF ENANTIOPURE SULFINIMINE DERIVED CHIRAL AMINE BUILDING BLOCKS FOR THE ASYMMETRIC SYNTHESIS OF TROPANE ALKALOIDS AND CYCLIC CIS BETA-AMINO ACID DERIVATIVES." Diss., Temple University Libraries, 2011. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/157444.

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Chemistry<br>Ph.D.<br>Chiral amines are ubiquitous in natural products and are found in many drugs and drug candidates. Enantiopure sulfinimines [RS(O)N=CHR1] are useful chiral building blocks for the stereoselective synthesis of amines and amine derivatives. The aim of this thesis research is to develop new methods to access chiral amine building blocks for applications in the synthesis of nitrogen-heterocycles including ring-substituted tropinones, tropanes, cyclic cis-beta-amino acid derivatives, and amino-cyclopentitols.<br>Temple University--Theses

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3

Stanko, John A. "The Design and Synthesis of Novel Chiral Z-Nitrones with Applications Towards the Syntheses of Enantiomerically Pure 4-Hydroxy Amino Acids." Diss., 2009. http://hdl.handle.net/10161/3201.

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<p>A number of 4-hydroxy amino acids have been synthesized via 1,3-dipolar cycloadditions of novel Z-nitrones and substituted olefins. Three achiral nitrones were synthesized in pursuit of a conformationally stable yet reactive Z-nitrone. The carboisopropoxynitrone was determined to be the best synthon in cycloadditions that favored a Z-nitrone oriented transition state. Solvent studies were performed for cycloaddition reactions and it was determined that polar solvents lead to "Z-derived" isoxazolidines whereas non-polar solvents primarily afford "E-derived" isoxazolidines. The incorporation

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Book chapters on the topic "Chiral nitronic acid"

1

Jiang, G. J., Y. Wang, and Z. X. Yu. "Chiral Lewis Acid Catalyzed [3 + 3] Cycloadditions of Nitrones to Doubly Activated Cyclopropanes." In Stereoselective Pericyclic Reactions, Cross Coupling, and C—H and C—X Activation. Georg Thieme Verlag KG, 2011. http://dx.doi.org/10.1055/sos-sd-203-00034.

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