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Journal articles on the topic '(±)-Camphor-10-sulfonic acid'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Sokolova, A. S., O. I. Yarovaya, L. V. Kuzminykh, et al. "Synthesis and Properties of (+)-Ketopinic and (–)-Camphanic Acids Esters Bearing a Nitrogen-Containing Heterocycle." Russian Journal of General Chemistry 93, no. 12 (2023): 3062–73. http://dx.doi.org/10.1134/s1070363223120058.

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Abstract A three-stage method was proposed for the synthesis of (1S)-(+)-camphor-10-sulfonic acid, (+)-ketopinic and (–)-camphanic acids esters containing a saturated nitrogen-containing heterocycle. It was found that (1S)-(+)-camphor-10-sulfonic acid esters undergo destruction with elimination of the sulfonic acid group in substitution reactions involving nitrogen-containing heterocycles. Esters of (+)-ketopinic and (–)-camphanic acids were formed during the proposed synthetic route, but undergo transesterification under column chromatography conditions. Quantum chemical calculations showed t

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2

Sokolova, A. S., O. I. Yarovaya, L. V. Kuzminykh, et al. "Synthesis and properties of (+)-ketopinic and (-)-camphanic acids esters bearing a nitrogen-containing heterocycle." Журнал общей химии 93, no. 12 (2023): 1854–66. http://dx.doi.org/10.31857/s0044460x23120053.

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A three-stage method was proposed for the synthesis of (1 S )-(+)-camphor-10-sulfonic acid, (+)-ketopinic and (-)-camphanic acids esters containing a saturated nitrogen-containing heterocycle. It was found that (1 S )-(+)camphor-10-sulfonic acid esters undergo destruction with elimination of the sulfonic acid group in substitution reactions involving nitrogen-containing heterocycles. Esters of (+)-ketopinic and (-)-camphanic acids were formed during the proposed synthetic route, but undergo transesterification under column chromatography conditions. Quantum chemical calculations showed that th

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3

Brahmachari, Goutam, Khondekar Nurjamal, Indrajit Karmakar, and Mullicka Mandal. "Camphor-10-Sulfonic Acid (CSA): A Water Compatible Organocatalyst in Organic Transformations." Current Organocatalysis 5, no. 3 (2019): 165–81. http://dx.doi.org/10.2174/2213337205666181112110524.

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4

Anjaneyulu, Bendi, Sangeeta, and Naina Saini. "A Study on Camphor Derivatives and Its Applications: A Review." Current Organic Chemistry 25, no. 12 (2021): 1404–28. http://dx.doi.org/10.2174/1385272825666210608115750.

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Natural compounds are the prominent sources for the synthesis of abundant biologically active substances in medicinal chemistry. Camphor exists in two enantiomeric forms i.e., R and S, or both, which are readily obtainable. Camphor is a small molecule with chirality property that binds to some active site, together with its low cost and convenience to transform into synthetically useful derivatives and one of the most important monoterpenoids widely spread in plants and has been used as starting material for the various camphor based derivatives which exhibit several biological activities incl

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5

Pelit, Emel, and Zuhal Turgut. "(+)-CSA Catalyzed Multicomponent Synthesis of 1-[(1,3-Thiazol-2-ylamino)methyl]-2-naphthols and Their Ring-Closure Reaction under Ultrasonic Irradiation." Journal of Chemistry 2016 (2016): 1–9. http://dx.doi.org/10.1155/2016/9315614.

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New 1-[(1,3-thiazol-2-ylamino)methyl]-2-naphthols were obtained by condensation of 2-aminothiazole, aromatic aldehydes, and 2-naphthol in the presence of (+)-camphor-10-sulfonic acid ((+)-CSA) as an effective catalyst under ultrasound-promoted solvent-free conditions. The 1-[(1,3-thiazol-2-ylamino)methyl]-2-naphthol derivatives were converted in ring-closure reaction with formaldehyde to the corresponding naphthoxazine derivatives.

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6

Garai, Ashesh, and Arun K. Nandi. "Rheology of (±)-camphor-10-sulfonic acid doped polyaniline-m-cresol conducting gel nanocomposites." Journal of Polymer Science Part B: Polymer Physics 46, no. 1 (2008): 28–40. http://dx.doi.org/10.1002/polb.21339.

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7

Pelit, Emel. "Synthesis of Isoxazolopyridines and Spirooxindoles under Ultrasonic Irradiation and Evaluation of Their Antioxidant Activity." Journal of Chemistry 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/9161505.

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New polycyclic-fused isoxazolo[4,5-e]pyridines and spirooxindoles were obtained via multicomponent reaction of 5-amino-3-methylisoxazole, indan-1,3-dione, and aromatic aldehydes and reaction of 5-amino-3-methylisoxazole, isatin, and β-diketones in the presence of (±)-camphor-10-sulfonic acid as an effective and nontoxic organocatalyst under ultrasound-promoted conditions. The antioxidant activity of the novel synthesized compounds was studied.

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8

Manna, Swarup, and Arun K. Nandi. "Supramolecular Organization of ±Camphor-10-sulfonic Acid andN,N-Dimethyl Formamide into Giant Spherulites." Journal of Physical Chemistry B 108, no. 22 (2004): 6932–34. http://dx.doi.org/10.1021/jp048824g.

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9

Kas’yan, L. I., V. A. Pal’chikov, A. V. Turov, S. A. Prid’ma, and A. V. Tokar’. "Cage-like amines in the synthesis and oxidation of camphor-10-sulfonic acid amides." Russian Journal of Organic Chemistry 45, no. 7 (2009): 1007–17. http://dx.doi.org/10.1134/s1070428009070057.

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10

Cai, Liying, Tingping Xie, Suying Zhao, Huidong Zheng, and Dan Wu. "Measurement and correlation of solubility of d-camphor-10-sulfonic acid in pure solvents." Fluid Phase Equilibria 398 (July 2015): 46–50. http://dx.doi.org/10.1016/j.fluid.2015.04.014.

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11

Wagner, Gabriele, Uwe Verfürth, and Rudolf Herrmann. "Chemistry of Fenchonesulfonic Acid Derivatives." Zeitschrift für Naturforschung B 50, no. 2 (1995): 283–88. http://dx.doi.org/10.1515/znb-1995-0223.

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(1 S) - (+)-Fenchone is sulfonated by SO3 or H2SO4/acetic anhydride in the bridgehead methyl group. This could be confirmed by NMR techniques (INADEQUATE). The fenchonesulfonic acid obtained is converted (SOCl2/NH3) to the cyclic fenchonesulfonimide, which can be oxidized to the corresponding oxaziridine, in close analogy to 10-camphorsulfonimide. Improved procedures for this reaction sequences are given. During the treatment of the sulfonic acid with thionyl chloride, a byproduct with a rearranged bicyclic skeleton is observed whose structure has been determined by ozonolytic degradation and

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12

Gul, Shah, and Bilal. "Fabrication of Eco-Friendly Solid-State Symmetric Ultracapacitor Device Based on Co-Doped PANI/GO Composite." Polymers 11, no. 8 (2019): 1315. http://dx.doi.org/10.3390/polym11081315.

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An eco-friendly solid-state symmetric ultracapacitor (Uc) device was fabricated using a polyaniline graphene oxide composite co-doped with sulfuric acid (H2SO4) and dodecyl benzene sulfonic acid (DBSA) or camphor sulfonic acid (CSA), as electrode material utilizing gold sheets as current collectors. The device showed specific capacitance value of 150 F/g at 1 A/g current density, with a capacitance retention value of 93.33% at higher current density (10 A/g), indicating a high rate capability. An energy density of 15.30 Whkg−1 with a power density of 1716 Wkg−1 was obtained at the current dens

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13

Kundu, Kshama, and Sandip Nayak. "Camphor-10-sulfonic acid catalyzed condensation of 2-naphthol with aromatic/aliphatic aldehydes to 14-aryl/alkyl-14H-dibenzo[a,j]xanthenes." Journal of the Serbian Chemical Society 79, no. 9 (2014): 1051–58. http://dx.doi.org/10.2298/jsc130805021k.

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(?)-Camphor-10-sulfonic acid (CSA) catalyzed condensation of 2-naphthol with both aliphatic/aromatic aldehydes at 80?C yielded 14-alkyl/aryl-dibenzoxanthenes as the sole product in high yields. However, the same condensation with benzaldehyde at 25?C afforded a mixture of intermediate 1,1-bis-(2-hydroxynaphthyl)phenylmethane and 14-phenyl-dibenzoxanthene while the condensation with aliphatic aldehydes at 25?C furnished the corresponding 14-alkyl-dibenzoxanthenes as the sole product. Moreover, condensation of 2-naphthol with aromatic/aliphatic aldehydes with low catalyst loading (2 mol%) was gr

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14

Guo, Peng. "Three 2D AgI-framework isomers with helical structures controlled by the chirality of camphor-10-sulfonic acid." Dalton Transactions 40, no. 8 (2011): 1716. http://dx.doi.org/10.1039/c0dt01384f.

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15

M, Jayalakshmi, Jyothis Devasia, Sampath Chinnam, et al. "10-camphor sulfonic acid: A simple and efficient organocatalyst to access anti-SARS-COV-2 Benzoxanthene derivatives." Molecular Catalysis 572 (February 2025): 114691. https://doi.org/10.1016/j.mcat.2024.114691.

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16

Guo, Peng, Jing Wang, Jun Wang, Daocheng Pan, and Guohai Xu. "Ag (I)-based 2D metal frameworks with helical structures decorated by the homochiral camphor-10-sulfonic acid." Solid State Sciences 12, no. 12 (2010): 2091–95. http://dx.doi.org/10.1016/j.solidstatesciences.2010.09.004.

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17

Kumbhar, Digambar, Reshma Patil, Dayanand Patil, et al. "(±)-Camphor-10-sulfonic acid as recyclable and efficient catalyst for the synthesis of some novel coumarin derivatives." Synthetic Communications 46, no. 1 (2015): 85–92. http://dx.doi.org/10.1080/00397911.2015.1121281.

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18

Miles, Andrew J., Frank Wien, and B. A. Wallace. "Redetermination of the extinction coefficient of camphor-10-sulfonic acid, a calibration standard for circular dichroism spectroscopy." Analytical Biochemistry 335, no. 2 (2004): 338–39. http://dx.doi.org/10.1016/j.ab.2004.08.035.

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19

Hayyan, Adeeb, Mohd Ali Hashim, and Maan Hayyan. "Agro-industrial acidic oil as a renewable feedstock for biodiesel production using (1R)-(–)-camphor-10-sulfonic acid." Chemical Engineering Science 116 (September 2014): 223–27. http://dx.doi.org/10.1016/j.ces.2014.03.031.

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20

Jayalakshmi, M., J. Devasia, A. Nizam, et al. "Tandem Neat Synthesis of Substituted Pyrano[3,2-c]chromen-5-ones: Unraveling the Camphor-10-sulfonic Acid Catalysis." Russian Journal of Organic Chemistry 61, no. 1 (2025): 147–56. https://doi.org/10.1134/s1070428024603285.

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21

Oppolzer, Wolfgang, and Philip Dudfield. "Asymmetric halogenation of camphor-10-sulfonic acid derived esters: an efficient new route to enantiomerically pure halohydrins and epoxides." Tetrahedron Letters 26, no. 41 (1985): 5036–40. http://dx.doi.org/10.1016/s0040-4039(01)80847-9.

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22

Devasia, Jyothis, Aatika Nizam, D. Muthukumar, Renjith S. Pillai, and Francis Joy. "A concise route to fused tetrazolo scaffolds through 10-camphor sulfonic acid auto-tandem homogeneous catalysis and mechanistic investigation." Journal of Molecular Liquids 376 (April 2023): 121510. http://dx.doi.org/10.1016/j.molliq.2023.121510.

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23

Mohammed, Kahtan A., Kareema M. Ziadan, Alaa S. Al-Kabbi, Dalael Saad Abdulzahr, Hawraa Kareem Judi, and Hussein M. Hussein. "The Role of Formic Acid as Secondary Dopant and Solvent for Poly(O-Toluidine) Intrinsically Doped with Camphor Sulfonic Acid." Materials Science Forum 1039 (July 20, 2021): 260–68. http://dx.doi.org/10.4028/www.scientific.net/msf.1039.260.

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The role of formic acid as Secondary Dopant for Poly (O-toluidine) Intrinsically Doped with Camphor Sulfonic-Acid (POT-CSA) nanoparticles were prepared by chemical polymerization had been studied. Spin coating and casting method have been used to deposit good adhesion and uniform thin films of (POT-CSA) on a glass substrates at room temperature. the properties of (POT-CSA) nanoparticles which examined by FTIR, SEM, AFM, XRD, I-V characteristics and UV-VIS. FTIR studies show the several bending and stretching modes of POT. XRD examination demonstrated that NPS. has a semi-crystalline pattern .

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24

Beygisangchin, Mahnoush, Suraya Abdul Rashid, Suhaidi Shafie, and Amir Reza Sadrolhosseini. "Polyaniline Synthesized by Different Dopants for Fluorene Detection via Photoluminescence Spectroscopy." Materials 14, no. 23 (2021): 7382. http://dx.doi.org/10.3390/ma14237382.

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The effects of different dopants on the synthesis, optical, electrical and thermal features of polyaniline were investigated. Polyaniline (PANI) doped with p-toluene sulfonic acid (PANI-PTSA), camphor sulphonic acid (PANI-CSA), acetic acid (PANI-acetic acid) and hydrochloric acid (PANI-HCl) was synthesized through the oxidative chemical polymerization of aniline under acidic conditions at ambient temperature. Fourier transform infrared light, X-ray diffraction, UV-visible spectroscopy, field emission scanning electron microscopy, photoluminescence spectroscopy and electrical analysis were used

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25

Zhai, Yingying, Kefeng Pan, and Ende Zhang. "Anti-Corrosive Coating of Carbon-Steel Assisted by Polymer-Camphorsulfonic Acid Embedded within Graphene." Coatings 10, no. 9 (2020): 879. http://dx.doi.org/10.3390/coatings10090879.

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A novel, economic and environmentally friendly anticorrosion coating material for metals is introduced and investigated in this paper. For this purpose, camphor-sulfonic-acid/graphene-doped poly(o-toluidine) composites (MG/CSA@POT) were fabricated using in-situ polymerization with (NH4)2S2O8 as an oxidant. The structure and the morphology of MG/CSA@POT were analyzed using FTIR (Fourier-transform infrared spectroscopy), XRD (X-ray diffraction), and SEM (Scanning Electron Microscope). Multilayer graphene (MG)/CSA@POT-polyurethane composite coatings (MG/CSA@POT-WPU) were prepared on the surface o

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26

Najana, Sanni Babu, and Bala Murali Krishna Khandapu. "Quantification of Impurity-E in Voriconazole Powder for Solution for Infusion (200 mg/vial) by using High Performance Liquid Chromatography." Caribbean Journal of Science and Technology 10, no. 02 (2022): 01–09. http://dx.doi.org/10.55434/cbi.2022.20101.

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A novel stability indicating liquid chromatographic method was developed and validated for the quantification of impurity-E((±)-βCamphorsulfonic acid, (±)-Camphor-10-sulfonic acid)in Voriconazole powder for solution for infusion formulation. The separation was achieved on Novapak (150 x 3.9 mm, 4 μm) column using a movable segment consisting of pH 5.0 acetate buffer and acetonitrile gradient elution mode, at a flow rate of 1.0 ml/min. Column oven maintained at 35°C, inoculation quantity 50 µl, sample cooler temperature 5 °C and detection wavelength 286 nm. Chromatographic resolution between im

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27

Yoshioka, Ryuzo, Hajime Hiramatsu, Kimio Okamura, Ikuko Tsujioka, and Shin-ichi Yamada. "Crystal structure–solubility relationships in optical resolution by diastereomeric salt formation of DL-phenylglycine with (1S )-(+)-camphor-10-sulfonic acid." Journal of the Chemical Society, Perkin Transactions 2, no. 10 (2000): 2121–28. http://dx.doi.org/10.1039/b003068f.

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28

Iwan, Agnieszka, Janusz Kasperczyk, Bozena Kaczmarczyk та ін. "Polyketanils: Preparation of π-Conjugated Polymer Bases from p-dibenzoylbenzene with Various Diamines. Protonation with DL-Camphor-10-sulfonic Acid". High Performance Polymers 19, № 1 (2006): 78–96. http://dx.doi.org/10.1177/0954008306071032.

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29

Chauhan, Pankaj, Sarbjit Singh, and Swapandeep Singh Chimni. "ChemInform Abstract: D-Camphor-10-sulfonic Acid: A Water Compatible Organocatalyst for Friedel-Crafts Reaction of Indoles with Electron Deficient Olefins." ChemInform 44, no. 24 (2013): no. http://dx.doi.org/10.1002/chin.201324094.

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30

Amarandei, Cornelia, Romeo Iulian Olariu, and Cecilia Arsene. "Implications of Matrix Effects in Quantitative HPLC/ESI-ToF-MS Analyses of Atmospheric Organic Aerosols." Proceedings 55, no. 1 (2020): 6. http://dx.doi.org/10.3390/proceedings2020055006.

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Matrix-induced signal suppression or enhancements are known phenomena in electrospray ionization mass spectrometry. Very few studies report on method development for organic aerosols analyses with the evaluation of the matrix effects. The matrix effects lead to errors in the quantification of the analytes and affect the detection capability, precision, and accuracy of an analysis method. The present study reports on the matrix effects in the analysis of organic chemical compounds present in atmospheric aerosol particles collected on quartz filters. A total number of 19 analytes, including diff

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31

Fotia, Antonio, Angela Malara, Emilia Paone, et al. "Self Standing Mats of Blended Polyaniline Produced by Electrospinning." Nanomaterials 11, no. 5 (2021): 1269. http://dx.doi.org/10.3390/nano11051269.

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Conducting nanofibers of polyaniline (PANI) doped with camphor-10-sulfonic acid (HCSA) and blended with different polymers, such as polymethyl methacrylate (PMMA) and polyvinyl acetate (PVAc), have been fabricated using the electrospinning technique. Scanning electron microscopy (SEM) and thermal gravimetric analysis (TGA) were utilized to characterize the morphology and the thermal stability of PANI-blended fibers. An extensive study was performed to understand the copolymer influence on both the structural and surface properties of the realized conductive thin films. Samples main electrical

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32

Hayyan, Adeeb, Khalid Abed, Mohammed Al-Saadi, et al. "Application of response surface methodology to optimize the treatment process of high conversion of free fatty acids using (1R)-(-)-camphor-10-sulfonic acid and iron(III) sulphate." Hemijska industrija, no. 00 (2025): 3. https://doi.org/10.2298/hemind240515003h.

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This study investigates biodiesel production from acidic crude palm oil using one homogeneous catalyst, (1R)-(-)-camphor-10-sulfonic acid (10-CSA), and one heterogeneous catalyst, iron(III) sulphate, focusing on their catalytic activity, recyclability, and process optimisation by using response surface methodology. Optimal conditions were identified by utilising a Box-Behnken factorial design. For 10-CSA, the optimised conditions yielded a free fatty acid (FFA) reduction to 0.43 wt.%, with a catalyst dosage of 1.5 wt.% (investigated range: 1.0-2.0 wt.%), methanol-to-oil molar ratio of 12.67:1

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33

Chandam, Dattatray R., Abhijeet G. Mulik, Prasad P. Patil, Suryabala D. Jagdale, Dayanand R. Patil, and Madhukar B. Deshmukh. "(±)-Camphor-10-sulfonic acid catalyzed atom efficient and green synthesis of triazolo[1,2-a]indazole-triones and spiro triazolo[1,2-a]indazole-tetraones." Research on Chemical Intermediates 41, no. 2 (2013): 761–71. http://dx.doi.org/10.1007/s11164-013-1226-9.

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34

Emel, Pelit. "(±)-CSA Catalyzed Multicomponent Synthesis of Indeno Naphthopyrans and Tetrahydrobenzo[a]xanthen-11-ones Under Ultrasonic Irradiation." Chemical Science International Journal 20, no. 1 (2017): 1–8. https://doi.org/10.9734/CSJI/2017/35380.

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<strong>Aims: </strong>This study was designed to synthesis of Naphthopyrans and xanthenes derivatives in green chemistry approach. <strong>Methodology:</strong> New 13-aryl-indeno[1,2-<em>b</em>]naphtha[1,2-<em>e</em>]pyran-12(13<em>H</em>)-ones and tetrahydrobenzo[<em>a</em>]xanthen-11-ones were obtained by multi-component reaction of 2-naphthol, aromatic aldehydes, indane-1,3-dione or 5,5-dimethylcyclohexane-1,3-dione in the presence of (±)-camphor-10-sulfonic acid (CSA) catalyst under ultrasonic irradiation. <strong>Results:</strong> 13-aryl-indeno[1,2-<em>b</em>]naphtha[1,2-<em>e</em>]pyr

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35

Majidi, Mir Reza, Leon A. P. Kane-Maguire, and Gordon G. Wallace. "Electrochemical Synthesis of Optically Active Polyanilines." Australian Journal of Chemistry 51, no. 1 (1998): 23. http://dx.doi.org/10.1071/c97108.

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The synthesis of optically active polyaniline salt films of the type PAn.HCSA (HCSA = camphor-10-sulfonic acid) has been achieved via the enantioselective electropolymerization of aniline on indium-tin-oxide (ITO)-coated glass electrodes in the presence of (+)- or (–)-HCSA. Similar results were obtained under potentiostatic, galvanostatic and potentiodynamic conditions. The chiroptical and electrical properties of these novel materials have been characterized by u.v.–visible and circular dichroism (c.d.) spectroscopy, electrochemical quartz crystal microbalance techniques and resistometry. The

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36

Sokolova, A. S., D. V. Baranova, O. I. Yarovaya, et al. "Synthesis of (1S)-(+)-camphor-10-sulfonic acid derivatives and investigations in vitro and in silico of their antiviral activity as the inhibitors of fi lovirus infections." Russian Chemical Bulletin 68, no. 5 (2019): 1041–46. http://dx.doi.org/10.1007/s11172-019-2517-0.

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37

D'Souza, Alice A., Majid Motevalli, Andrew J. Robinson, and Peter B. Wyatt. "(R)-(+)-3-Amino-2-phenylpropanoic acid: a revised absolute configuration based on an enantioselective synthesis and an X-ray crystal structure of the salt with (1S)-(+)-camphor-10-sulfonic acid." Journal of the Chemical Society, Perkin Transactions 1, no. 1 (1995): 1. http://dx.doi.org/10.1039/p19950000001.

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38

Kundu, Kshama, and Sandip K. Nayak. "(±)-Camphor-10-sulfonic acid catalyzed direct one-pot three-component Mannich type reaction of alkyl (hetero)aryl ketones under solvent-free conditions: application to the synthesis of aminochromans." RSC Adv. 2, no. 2 (2012): 480–86. http://dx.doi.org/10.1039/c1ra00652e.

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39

Kundu, Kshama, and Sandip K. Nayak. "ChemInform Abstract: (.+-.)-Camphor-10-sulfonic Acid Catalyzed Direct One-Pot Three-Component Mannich Type Reaction of Alkyl (Hetero)aryl Ketones under Solvent-Free Conditions: Application to the Synthesis of Aminochromans." ChemInform 43, no. 21 (2012): no. http://dx.doi.org/10.1002/chin.201221062.

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40

Cahova, Jana, Jana Blahova, Lucie Plhalova, Zdenka Svobodova, and Caterina Faggio. "Do Single-Component and Mixtures Selected Organic UV Filters Induce Embryotoxic Effects in Zebrafish (Danio rerio)?" Water 13, no. 16 (2021): 2203. http://dx.doi.org/10.3390/w13162203.

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UVs are important ingredients in common cosmetic products (e.g., sunscreens, hairsprays, soap). After their use, they can enter the aquatic ecosystem and negatively affect non-target aquatic organisms. The aim of our study was to evaluate acute embryotoxicity of selected organic UVs 2-phenylbenzimidazole-5-sulfonic acid (PBSA), ethylhexyl methoxycinnamate (EHMC), octocrylene (OC), 4-methylbenzylidene camphor (4-MBC) and benzophenone-3 (BP-3). The chemicals were tested both as a single substance and their mixtures. The types of mixtures were chosen as follows: the combination of OC and 4-MBC; t

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41

Navale, S. T., G. D. Khuspe, M. A. Chougule та V. B. Patil. "Camphor sulfonic acid doped PPy/α-Fe2O3 hybrid nanocomposites as NO2 sensors". RSC Adv. 4, № 53 (2014): 27998–8004. http://dx.doi.org/10.1039/c4ra02924k.

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PPy/α-Fe<sub>2</sub>O<sub>3</sub> hybrid nanocomposites with different weight percentages (10–50%) of CSA were successfully prepared by using a solid state synthesis method for NO<sub>2</sub> gas detection at room temperature.

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42

Singh, Manoj, Amish Kumar Gautam, Mohd Faraz, and Neeraj Khare. "Thermoelectric performance of (±) Camphor-10-sulfonic acid doped polyaniline/graphitic carbon nitride composite films." European Physical Journal Plus 137, no. 11 (2022). http://dx.doi.org/10.1140/epjp/s13360-022-03451-7.

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43

OPPOLZER, W., and P. DUDFIELD. "ChemInform Abstract: Asymmetric Halogenation of Camphor-10-sulfonic Acid Derived Esters: An Efficient New Route to Enantiomerically Pure Halohydrins and Epoxides." Chemischer Informationsdienst 17, no. 7 (1986). http://dx.doi.org/10.1002/chin.198607107.

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44

Datta, Arpita, N. Sivaraman, T. G. Srinivasan, and P. R. Vasudeva Rao. "Rapid separation of lanthanides and actinides on small particle based reverse phase supports." Radiochimica Acta 98, no. 5 (2010). http://dx.doi.org/10.1524/ract.2010.1715.

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AbstractThis paper presents the results on the use of short columns (3−5 cm long) with small particle size (1.8 μm) for high performance liquid chromatographic separation of individual lanthanides and uranium from plutonium as well as uranium from thorium to achieve rapid separationsIn the present work, a dynamic ion-exchange chromatographic separation technique was employed using camphor-10-sulfonic acid (CSA) as the ion-pairing reagent and α-hydroxy isobutyric acid (α-HIBA) as the complexing reagent for the isolation of individual lanthanides as well as the separation of uranium from thorium

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Peng, Hang, Yan Qin, Xiao-Gang Chen, Xian-Jiang Song, Ren-Gen Xiong, and Wei-Qiang Liao. "The First Kleinman‐type Second‐Harmonic Generation Circular Dichroism On/Off Switchable Ferroelectrics." Angewandte Chemie, January 27, 2025. https://doi.org/10.1002/ange.202500285.

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Chiral ferroelectrics have recently received considerable interest due to their unique chiroptical properties. They can adopt Kleinman symmetry second‐harmonic generation (SHG)‐active chiral‐polar point groups in the ferroelectric phase while Kleinman symmetry SHG‐inactive chiral‐nonpolar point groups in the paraelectric phase, providing a great opportunity to realize on/off switching of SHG circular dichroism (SHG‐CD) response. However, the SHG‐CD effect was rarely explored in chiral ferroelectrics, and the on/off switchable SHG‐CD has never been reported. Herein, we report the first crown et

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Peng, Hang, Yan Qin, Xiao-Gang Chen, Xian-Jiang Song, Ren-Gen Xiong, and Wei-Qiang Liao. "The First Kleinman‐type Second‐Harmonic Generation Circular Dichroism On/Off Switchable Ferroelectrics." Angewandte Chemie International Edition, January 27, 2025. https://doi.org/10.1002/anie.202500285.

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Chiral ferroelectrics have recently received considerable interest due to their unique chiroptical properties. They can adopt Kleinman symmetry second‐harmonic generation (SHG)‐active chiral‐polar point groups in the ferroelectric phase while Kleinman symmetry SHG‐inactive chiral‐nonpolar point groups in the paraelectric phase, providing a great opportunity to realize on/off switching of SHG circular dichroism (SHG‐CD) response. However, the SHG‐CD effect was rarely explored in chiral ferroelectrics, and the on/off switchable SHG‐CD has never been reported. Herein, we report the first crown et

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Gul, Melek, Emine Turk Celikoglu, Onder Idil, Gamze Tas, and Emel Pelit. "Synthesis, antimicrobial activity and molecular docking studies of spiroquinoline-indoline-dione and spiropyrazolo-indoline-dione derivatives." Scientific Reports 13, no. 1 (2023). http://dx.doi.org/10.1038/s41598-023-27777-z.

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AbstractSpiro[benzo[h]quinoline-7,3′-indoline]diones and spiro[indoline-3,4′-pyrazolo[3,4-b]quinoline]diones were efficiently synthesized via one-pot multi-component reactions under ultrasound-promoted conditions. Spiro[benzo[h]quinoline-7,3′-indoline]dione derivatives were successfully developed by the reaction of isatins, naphthalene-1-amine and 1,3-dicarbonyl compounds. The spiro[indoline-3,4′-pyrazolo[3,4-b]quinoline]dione derivatives were prepared by the reaction of isatins, 5-amino-1-methyl-3-pheylpyrazole, and 1,3-dicarbonyl compounds by using ( ±)-camphor-10-sulfonic acid as a catalyst

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Cahova, Jana, Jana Blahova, Lucie Plhalova, Zdenka Svobodova, and Caterina Faggio. "Do Single-Component and Mixtures Selected Organic UV Filters Induce Embryotoxic Effects in Zebrafish (Danio rerio)?" August 13, 2021. https://doi.org/10.3390/w13162203.

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UVs are important ingredients in common cosmetic products (e.g., sunscreens, hairsprays, soap). After their use, they can enter the aquatic ecosystem and negatively affect non-target aquatic organisms. The aim of our study was to evaluate acute embryotoxicity of selected organic UVs 2-phenylbenzimidazole-5-sulfonic acid (PBSA), ethylhexyl methoxycinnamate (EHMC), octocrylene (OC), 4-methylbenzylidene camphor (4-MBC) and benzophenone-3 (BP-3). The chemicals were tested both as a single substance and their mixtures. The types of mixtures were chosen as follows: the combination of OC and 4-MBC; t

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