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Relevant bibliographies by topics / Chiral ionic liquids

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Journal articles

Academic literature on the topic 'Chiral ionic liquids'

Author: Grafiati

Published: 4 June 2021

Last updated: 15 February 2022

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Journal articles on the topic "Chiral ionic liquids"

1

Nobuoka, Kaoru, Satoshi Kitaoka, Tsutomu Kojima, et al. "Proline Based Chiral Ionic Liquids for Enantioselective Michael Reaction." Organic Chemistry International 2014 (November 20, 2014): 1–9. http://dx.doi.org/10.1155/2014/836126.

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Chiral ionic liquids, starting from (S)-proline, have been prepared and evaluated the ability of a chiral catalyst. In Michael reaction of trans-β-nitrostyrene and cyclohexanone, all the reactions were carried out under homogeneous conditions without any solvent except for excess cyclohexanone. The chiral ionic liquid catalyst with the positive charge delocalized bulky pyrrolidinium cation shows excellent yields (up to 92%), diastereoselectivities (syn/anti = 96/4), and enantioselectivities (up to 95% ee) and could be reused at least three times without any loss of its catalytic activity. Such

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2

Flieger, Jolanta, Joanna Feder-Kubis, and Małgorzata Tatarczak-Michalewska. "Chiral Ionic Liquids: Structural Diversity, Properties and Applications in Selected Separation Techniques." International Journal of Molecular Sciences 21, no. 12 (2020): 4253. http://dx.doi.org/10.3390/ijms21124253.

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Ionic liquids (ILs) are chemical compounds composed of ions with melting points below 100 °C exhibiting a design feature. ILs are commonly used as the so-called green solvents, reagents or highly efficient catalysts in varied chemical processes. The huge application potential of ionic liquids (IL) justifies the growing interest in these compounds. In the last decade, increasing attention has been devoted to the development of new methods in the synthesis of stable chiral ionic liquids (CILs) and their application in various separation techniques. The beginnings of the successful use of CILs to

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3

Vasiloiu, Maria, Sonja Leder, Peter Gaertner, Kurt Mereiter, and Katharina Bica. "Coordinating chiral ionic liquids." Organic & Biomolecular Chemistry 11, no. 46 (2013): 8092. http://dx.doi.org/10.1039/c3ob41635f.

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4

Lauth-de Viguerie, Nancy, Cosmin Patrascu, Claudia Sugisaki, Christophe Mingotaud, Jean-Daniel Marty, and Yves Génisson. "New Pyridinium Chiral Ionic Liquids." HETEROCYCLES 63, no. 9 (2004): 2033. http://dx.doi.org/10.3987/com-04-10133.

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5

Zalewska, Karolina, and Luis C. Branco. "Organocatalysis with Chiral Ionic Liquids." Mini-Reviews in Organic Chemistry 11, no. 2 (2014): 141–53. http://dx.doi.org/10.2174/1570193x1102140609120011.

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6

Bica, Katharina, and Peter Gaertner. "Applications of Chiral Ionic Liquids." European Journal of Organic Chemistry 2008, no. 19 (2008): 3235–50. http://dx.doi.org/10.1002/ejoc.200701107.

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7

Ahn, Sangbum, Shohei Yamakawa, and Kazuo Akagi. "Liquid crystallinity-embodied imidazolium-based ionic liquids and their chiral mesophases induced by axially chiral tetra-substituted binaphthyl derivatives." Journal of Materials Chemistry C 3, no. 16 (2015): 3960–70. http://dx.doi.org/10.1039/c4tc02968b.

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The novel liquid crystalline ionic liquids (LCILs) were synthesised by introducing LC chains into both sides of imidazolium derivatives. The LCILs exhibited chiral nematic (N*) phases when the chiral dopants were added to the LCILs.

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8

Singh, Avtar, Nirmaljeet Kaur, and Harish Kumar Chopra. "Enantioselective Reduction Reactions Using Chiral Ionic Liquids: An Overview." Current Organic Synthesis 15, no. 5 (2018): 578–86. http://dx.doi.org/10.2174/1570179415666180427111428.

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Background: Enantioselective reduction reactions play a key role to synthesize compounds of industrial importance. A number of metal and biocatalysts have been developed for their use in this reaction. Chiral ionic liquids (CILs) have been widely used as the reaction medium and the organocatalysts in enantioselective reduction reactions. Objective: This paper focuses on the systematic literature review about the use of chiral ionic liquids (CILs) in the enantioselective reduction reaction. The mechanistic aspects of these species are also taken into account. Conclusion: This review concludes t

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9

Wang, Hong Li, Xiao Ling Hu, Ping Guan, Jin Yang Yu, and Yi Mei Tang. "Synthesis and Characterization of Novel Ester Functionalized Chiral Ionic Liquids." Advanced Materials Research 197-198 (February 2011): 471–77. http://dx.doi.org/10.4028/www.scientific.net/amr.197-198.471.

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Three different chiral ionic liquids, chloride (R)-(+)-β-(1-methyl-imidazole)–propio-nate, (R)-(+)-β-(1-methyl-imidazole)-propionate terafluoroborate and hexafluorophosphate, weresuccessfully synthesized via the nucleophilic substitution reaction and the anion metathesis reaction, with (S)-(-)-2-chloro-propionic acid as the chiral source. Structures of the chiral io-nic liquids have been characterized by the infrared spectroscopy, nuclear magnetic resonancespectroscopy and quantum chemical structure optimization method. These new ionic materia-ls can be used as building blocks for the synthesi

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10

Marwani, Hadi. "Spectroscopic evaluation of chiral and achiral fluorescent ionic liquids." Open Chemistry 8, no. 4 (2010): 946–52. http://dx.doi.org/10.2478/s11532-010-0062-7.

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AbstractIn this study, spectroscopic investigation of chiral and achiral room temperature ionic liquids is achieved. New ionic liquids were prepared via metathesis, accomplished by the reaction of either L-phenylalanine ethyl ester hydrochloride, chlorpromazine hydrochloride or 1,10-Phenanthroline monohydrate hydrochloride with lithium bis(trifluoromethane) sulfonamide in water. The resulting ionic liquids were produced in high yield and purity. The results obtained by use of 1H NMR and IR experiments were in very good agreement with the chemical structures of the synthesized ionic liquids. In

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