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Journal articles on the topic 'Mandejci'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Bruno, Claudio, Giovanni Lentini, Angelo Lovece, et al. "Microwave-Assisted Synthesis of(±)-Mandelic Acid-d5, Optical Resolution, and Absolute Configuration Determination." Journal of Chemistry 2013 (2013): 1–6. http://dx.doi.org/10.1155/2013/386238.

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An efficient microwave-assisted synthesis of(±)-mandelic acid-d5was developed. The racemic mixture was resolved by diastereomeric salt formation using 1-phenylethylamine enantiomers as resolving agents. At each step, the resolution process was checked by determining mandelic acid-d5enantiomer ee values directly on fractional crystallized diastereomeric salts by chiral capillary electrophoresis analysis. Highly enriched (−)- and (+)-mandelic acid-d5(95% and 90% ee, resp.) were obtained and their absolute configurations—RandS, respectively—were determined by correlation of the (−)-mandelic acid-

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2

Brovarska, O. S., L. D. Varbanets, G. V. Gladka, A. D. German, and O. B. Tashyrev. "Lipopolysaccharide of Pseudomonas mandelii, Isolated from Antarctica." Mikrobiolohichnyi Zhurnal 83, no. 4 (2021): 24–34. http://dx.doi.org/10.15407/microbiolj83.04.024.

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Representatives of the Pseudomonas mandelii species are able to exist and multiply in places where the temperature is constantly low. The optimum growth temperature for P. mandelii is 25–30°C, although this bacterium can grow at 4°C but not at 37°C. Therefore, P. mandelii is an excellent example of psychrotolerant bacterium which like psychrophilic bacteria is characterized by a number of structural and functional adaptations that facilitate survival at low temperatures. To understand these microorganisms’ role in Antarctica the characterization of its biopolymers is vital. One of these biopol

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3

Coles, S. J., A. L. Ellis, K. Leung, J. Sarson, T. L. Threlfall, and G. J. Tizzard. "Relationships between the racemic structures of substituted mandelic acids containing 8- and 10-membered hydrogen bonded dimer rings." CrystEngComm 16, no. 47 (2014): 10816–23. http://dx.doi.org/10.1039/c4ce01832j.

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4

Kramell, Robert, Gernot Schneider, Jürgen Schmidt, Günther Sembdner, and Klaus Schreiber. "Optical Resolution of Racemic Jasmonic Acid by Separation of Diastereomeric Mandelyl Esters." Zeitschrift für Naturforschung B 45, no. 3 (1990): 377–81. http://dx.doi.org/10.1515/znb-1990-0312.

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The reaction of racemic jasmonic acid with either (R)-mandelic acid or its (S)-enantiomer resulted in a mixture of diastereomeric esters. Both the O-[(±)-jasmonoyl]-(R)-mandelic acids (2a, 2b) and the O-[(±)-jasmonoyl]-(S)-mandelic acids (3a, 3b) could be separated by silica gel chromatography. By hydrolysis of the pure diastereomers, resolved (+)-JA (la) and (–)-JA (lb) were obtained. The structures and the purity of all compounds were confirmed by 1H NMR, MS, GC/MS, IR and ORD.

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5

Tanaka, Koichi, Takatumi Fukuoka, and Matoo Shiro. "Optical Resolution of Mandelic Acid by Complexation with (S)-(+)-Alanine." Journal of Chemical Research 2002, no. 9 (2002): 446–47. http://dx.doi.org/10.3184/030823402103172608.

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Racemic mandelic acid (2) was resolved efficiently by complexation with ( S)-(+)-alanine (1) and the crystal structure of 2:2:1 complex of ( S)-(+)-alanine (1), ( R)-(-)-mandelic acid (2) and H2O was determined characterizing the hydrogen bond network in the solid state.

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6

Shao, Xia, and Kang Du. "Biodegradation of 2-methylisoborneol by enzyme separated from Pseudomonas mandelii." Water Supply 20, no. 6 (2020): 2096–105. http://dx.doi.org/10.2166/ws.2020.100.

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Abstract As a kind of odorous substance, 2-methylisoborneol (2-MIB) is difficult to be degraded naturally. Some isolated strains of bacteria can degrade 2-MIB effectively. In this study, a strain of bacteria which can remove 2-MIB from drinking water efficiently was obtained from activated carbon in a filter, and was identified to be Pseudomonas mandelii based on 16S rRNA gene sequence analysis. Pseudomonas mandelii was not sensitive to the initial concentration of 2-MIB, and could tolerate a rather high concentration of 2-MIB. The best growth conditions for this degrader were 25–35 °C and ini

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7

Jacobs, Stanley, and Eric Culbertson. "Effects of Topical Mandelic Acid Treatment on Facial Skin Viscoelasticity." Facial Plastic Surgery 34, no. 06 (2018): 651–56. http://dx.doi.org/10.1055/s-0038-1676048.

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AbstractMandelic acid is an α-hydroxy acid with reported benefit in treating acne and hyperpigmentation. The authors have developed a topical mandelic acid formulation that subjectively improves the quality of aged skin. Although the gold standard for assessing outcomes, photographic documentation is limited by subjective interpretation. Tools for measuring physical skin properties allow for an objective assessment of changes in skin quality. The authors sought to objectively study the viscoelastic changes to the skin following treatment with topical mandelic acid, using the Cutometer MPA 580.

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8

Chênevert, Robert, and Martin Létourneau. "Enantioselectivity of carbonic anhydrase catalyzed hydrolysis of mandelic methyl esters." Canadian Journal of Chemistry 68, no. 2 (1990): 314–16. http://dx.doi.org/10.1139/v90-044.

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We report the first enantioselective hydrolysis of esters catalyzed by carbonic anhydrase. We found that mandelic methyl esters are good substrates for carbonic anhydrase. The R enantiomers are better substrates and enantiomeric excess values are moderate (40–51%). Keywords: carbonic anhydrase, mandelic esters, enantioselectivity, hydrolysis.

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9

&NA;. "Mandelic acid." Reactions Weekly &NA;, no. 515 (1994): 8. http://dx.doi.org/10.2165/00128415-199405150-00035.

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10

Carr, Jenny M., Peter J. Duggan, David G. Humphrey, Edward M. Tyndall, and Jonathan M. White. "Quaternary Ammonium Spiroborate Esters and Mixed Anhydrides Derived from Aliphatic ?-Hydroxy Acids and Diacids and their Wood Protection Properties." Australian Journal of Chemistry 64, no. 11 (2011): 1417. http://dx.doi.org/10.1071/ch11284.

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The preparation of tetra-n-butylammonium spiroborates derived from the aliphatic α-hydroxy acids glycolic and (S)-(+)-mandelic acid, and the spiroborate mixed anhydrides derived from the dicarboxylic acids oxalic, malonic, succinic, and phthalic acid was investigated. The target ammonium spiroborates were obtained in pure form from glycolic, (S)-(+)-mandelic, and oxalic acids and were tested for their potential as wood preservatives. The spiroborates derived from glycolic acid and (S)-(+)-mandelic acid show promise and are worthy of further investigation. Useful information about the order of

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11

Hung, Chin-Yin, Han-Hung Huang, and Ching-Chiang Hwang. "Chiral separations of mandelic acid by HPLC using molecularly imprinted polymers." Eclética Química 30, no. 4 (2005): 67–73. http://dx.doi.org/10.1590/s0100-46702005000400009.

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Styrene is used in a variety of chemical industries. Environmental and occupational exposures to styrene occur predominantly through inhalation. The major metabolite of styrene is present in two enantiomeric forms, chiral R- and S- hydroxy-1-phenyl-acetic acid (R-and S-mandelic acid, MA). Thus, the concentration of MA, particularly of its enantiomers, has been used in urine tests to determine whether workers have been exposed to styrene. This study describes a method of analyzing mandelic acid using molecular imprinting techniques and HPLC detection to perform the separation of diastereoisomer

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12

Saleh-Lakha, Saleema, Kelly E. Shannon, Claudia Goyer, Jack T. Trevors, Bernie J. Zebarth, and David L. Burton. "Nitric Oxide Reductase Gene Expression and Nitrous Oxide Production in Nitrate-Grown Pseudomonas mandelii." Applied and Environmental Microbiology 74, no. 22 (2008): 6876–79. http://dx.doi.org/10.1128/aem.01533-08.

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ABSTRACT Pure cultures of Pseudomonas mandelii were incubated with or without nitrate, which acts as a substrate and an electron acceptor for denitrification. Nitric oxide reductase (cnorB) gene expression was measured using a quantitative reverse transcription-PCR, and nitrous oxide emissions were measured by gas chromatography. P. mandelii cells in either the presence or absence of nitrate demonstrated an increase in cnorB gene expression during the first 3 h of growth. The level of expression of cnorB in nitrate-amended cells remained high (average, 2.06 × 108 transcripts/μg of RNA), while

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13

Ou, Zhi Min, and Ying Kang Nan. "Synthesis of (R)-(-)-Mandelic Acid Ethyl Ester by Asymmetric Reduction of Ethyl Benzoylformate with Yeast Cells." Advanced Materials Research 560-561 (August 2012): 273–78. http://dx.doi.org/10.4028/www.scientific.net/amr.560-561.273.

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An efficient yeast cell biotransformation process was set up for asymmetric synthesis of (R)-(-)-mandelic acid ethyl ester, a key drug intermediate. Saccharomyces cerevisiae 21 was selected as optimum strain for biotransformation. The optimum reduction conditions are as follows: substrate concentration 20 g/L, cell concentration 140 g/L, reaction time 36 h, temperature 30 0C. Conversion and enantiometric excess of (R)-(-)-mandelic acid ethyl ester reached 99.8 % and 100%.

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14

Mackay, C. J., and G. R. Kelman. "Choice Reaction Time in Workers Exposed to Styrene Vapour." Human Toxicology 5, no. 2 (1986): 85–89. http://dx.doi.org/10.1177/096032718600500202.

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1 Behavioural effects of occupational exposure to vapour from styrene-based resin were investigated in 10 female workers with a portable test of choice reaction time. Testing was carried out both at the beginning and end of the day's shift. 2 Uptake and metabolism of styrene were assessed by monitoring post-shift urinary mandelic acid excretion rates. By using these data workers were allocated to three groups reflecting zero, low )r high exposure. 3 After exposure slowing of reaction times was found in those with the highest mandelic acid excretion rates, whereas a slight improvement or no cha

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15

Peng, Zhi Guang, Dong Hong Yin, Jian Fu Liu, Jin Gang Yu, Xiao Na Yang, and Dong Ming Zeng. "Application of a Mixture of Oxidized Multi-Walled Carbon Nanotubes and D-(-)-Tartaric Acid-Impregnated Silica Gel as Stationary Phases for Thin-Layer Chromatographic Enantioseparation." Advanced Materials Research 602-604 (December 2012): 278–80. http://dx.doi.org/10.4028/www.scientific.net/amr.602-604.278.

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The oxidized multi-walled carbon nanotubes were prepared by a nitric acid treatment procedure, which were then used as additive in thin-layer chromatography stationary phases for resolution of ofloxacin, mandelic acid and 2-chloro-mandelic acid enantiomers. In a sharp contrast with pristine multi-walled carbon nanotubes/D-(-)-tartaric acid impregnated thin-layer chromatography plates, oxidized multi-walled carbon nanotubes/D-(-)-tartaric acid impregnated plates presented better enantioseparation effects for ofloxacin enantiomers.

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16

A.B., Parmanov, Nurmanov S.E., Tomash Maniecki, Ziyadullayev O.E., and Abdullayev J.U. "HOMOGENEOUS VINYLATION OF 2-HYDROXY-2 PHENYLETHANICAL ACID." International Journal of Research -GRANTHAALAYAH 6, no. 11 (2018): 350–54. http://dx.doi.org/10.29121/granthaalayah.v6.i11.2018.1138.

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Homogeneous-catalytical vinylation of 2-hydroxy-2-phenylethanical acid was carried out. Influence of catalylists nature, temperature and duration reaction on yield of synthesized vinyl ester has been investigated. basis of natural raw materials. Based on vinyl esters of carboxylic acids, their polymers and copolymers with unsaturated compounds of the ethylene series, emulsifiers for emulsion paints have been obtained; compounds that improve the viscosity of lubricating oils and are used as crosslinking agents in the rubber industry. Synthesis of vinyl esters based on monobasic aliphatic

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17

Panday, Dinesh, Teena Kachawa та Seema Kothari. "Kinetics and Correlation Analysis of Reactivity in the Oxidation of Some α-Hydroxy Acids by Benzimidazolium Dichromate". Progress in Reaction Kinetics and Mechanism 43, № 3-4 (2018): 300–314. http://dx.doi.org/10.3184/146867818x15319903829236.

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Kinetic and mechanistic studies of the oxidation of mandelic acid and nine monosubstituted mandelic acids by benzimidazolium dichromate (BIDC) in dimethyl sulfoxide are discussed with an emphasis on correlation of structure and reactivity. The reactions were of first order with respect to BIDC. However, Michaelis-Menten type kinetics were observed with respect to hydroxy acids. The reactions are catalysed by protons. The deuterium isotope effect for the oxidation of mandelic acid ( kH/ kD = 5.91 at 298 K) indicated an α-C-H bond cleavage in the rate-determining step. An analysis of the solvent

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18

Dąbkowska, Katarzyna, Maciej Pilarek, and Krzysztof W. Szewczyk. "Substrate Inhibition in Lipase-Catalysed Transesterification of Mandelic acid with Vinyl Acetate." Chemical and Process Engineering 33, no. 4 (2012): 539–46. http://dx.doi.org/10.2478/v10176-012-0044-8.

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Kinetic resolution of (R)- and (S)-mandelic acid by its transesterification with vinyl acetate catalysed by Burholderia cepacia lipase has been studied. The influence of the initial substrate concentration on the kinetics of process has been investigated. A modified ping-pong bi-bi model of enzymatic transesterification of (S)-mandelic acid including substrate inhibition has been developed. The values of kinetic parameters of the model have been estimated. We have shown that the inhibition effect revealed over a certain threshold limit value of the initial concentration of substrate.

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19

Liu, Xia, Ze Yi, Jianhui Wang, and Guiyan Liu. "Decarboxylative acylation of arenes with mandelic acid derivatives via palladium-catalyzed oxidative sp2 C–H activation." RSC Advances 5, no. 14 (2015): 10641–46. http://dx.doi.org/10.1039/c4ra14107e.

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20

Yevglevskis, Maksims, Catherine R. Bowskill, Chloe C. Y. Chan, et al. "A study on the chiral inversion of mandelic acid in humans." Org. Biomol. Chem. 12, no. 34 (2014): 6737–44. http://dx.doi.org/10.1039/c3ob42515k.

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21

da Silva, Cameron Capeletti, and Felipe Terra Martins. "The enantiopreference in the solid state probed in lamivudine crystal forms with mandelic acid." RSC Advances 5, no. 26 (2015): 20486–90. http://dx.doi.org/10.1039/c5ra01398d.

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22

Zechel, Filip, Peter Schwendt, Róbert Gyepes, Ján Šimunek, Jozef Tatiersky, and Lukáš Krivosudský. "Vanadium(v) complexes of mandelic acid." New Journal of Chemistry 43, no. 45 (2019): 17696–702. http://dx.doi.org/10.1039/c9nj02275a.

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23

Mrozek, Kamila. "Reguły Nelsona Mandeli." Nowa Kodyfikacja Prawa Karnego 48 (November 28, 2018): 169–82. http://dx.doi.org/10.19195/2084-5065.48.10.

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Nelson Mandela RulesThe publication is entirely devoted to the UN Standard Minimum Rules for the Treatment of Prisoners from 2015. However, due to their large size, this work focuses solely on the comparison of the presently valid rules with those from the UN Standard Minimum Rules for the Treatment of Prisoners from 2015 accepted in Geneva in 1955. The changes have been discussed one by one. The work also explains the evaluation of the legal status of the UN Nelson Mandela Rules because as a recommendation they lack the binding legal provisions. Nevertheless, they should become not only the g

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24

Xu, Yuechao, Mitchell R. Perry, Stefan A. Cairns, and Michael P. Shaver. "Understanding the ring-opening polymerisation of dioxolanones." Polymer Chemistry 10, no. 23 (2019): 3048–54. http://dx.doi.org/10.1039/c8py01695j.

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25

Saleh-Lakha, Saleema, Kelly E. Shannon, Sherri L. Henderson, et al. "Effect of pH and Temperature on Denitrification Gene Expression and Activity in Pseudomonas mandelii." Applied and Environmental Microbiology 75, no. 12 (2009): 3903–11. http://dx.doi.org/10.1128/aem.00080-09.

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ABSTRACT Pseudomonas mandelii liquid cultures were studied to determine the effect of pH and temperature on denitrification gene expression, which was quantified by quantitative reverse transcription-PCR. Denitrification was measured by the accumulation of nitrous oxide (N2O) in the headspace in the presence of acetylene. Levels of gene expression of nirS and cnorB at pH 5 were 539-fold and 6,190-fold lower, respectively, than the levels of gene expression for cells grown at pH 6, 7, and 8 between 4 h and 8 h. Cumulative denitrification levels were 28 μmol, 63 μmol, and 22 μmol at pH 6, 7, and

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26

Wang, Jie, and Yangfeng Peng. "Resolution of Halogenated Mandelic Acids through Enantiospecific Co-Crystallization with Levetiracetam." Molecules 26, no. 18 (2021): 5536. http://dx.doi.org/10.3390/molecules26185536.

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The resolution of halogenated mandelic acids using levetiracetam (LEV) as a resolving agent via forming enantiospecific co-crystal was presented. Five halogenated mandelic acids, 2-chloromandelic acid (2-ClMA), 3-chloromandelic acid (3-ClMA), 4-chloromandelic acid (4-ClMA), 4-bromomandelic acid (4-BrMA), and 4-fluoromandelic acid (4-FMA), were selected as racemic compounds. The effects of the equilibrium time, molar ratio of the resolving agent to racemate, amount of solvent, and crystallization temperature on resolution performance were investigated. Under the optimal conditions, the resoluti

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27

Prydderch, Hannah, Annette Haiβ, Marcel Spulak, et al. "Mandelic acid derived ionic liquids: synthesis, toxicity and biodegradability." RSC Advances 7, no. 4 (2017): 2115–26. http://dx.doi.org/10.1039/c6ra25562k.

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28

Grimblat, N., A. M. Sarotti, P. L. Pisano та S. C. Pellegrinet. "α-Hydroxyacids accelerate the Diels–Alder reaction of dibutyl vinylboronate with cyclopentadiene: experimental results and mechanistic insights". New Journal of Chemistry 40, № 3 (2016): 1966–69. http://dx.doi.org/10.1039/c5nj03015c.

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29

Mao, Xiaowei, Haiyang Zhao, Li Luo, Demei Tian, and Haibing Li. "Highly sensitive chiral recognition of amino propanol in serum with R-mandelic acid-linked calix[4]arene modified graphene." Journal of Materials Chemistry C 3, no. 6 (2015): 1325–29. http://dx.doi.org/10.1039/c4tc02365j.

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30

Csuk, René, Alexander Barthel, and Dieter Ströhl. "An Alternative and Efficient Route to Chlorophacinone." Zeitschrift für Naturforschung B 66, no. 1 (2011): 95–97. http://dx.doi.org/10.1515/znb-2011-0116.

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31

Sheet, Debobrata, Shrabanti Bhattacharya, and Tapan Kanti Paine. "Dioxygen activation and two consecutive oxidative decarboxylations of phenylpyruvate by nonheme iron(ii) complexes: functional models of hydroxymandelate synthase (HMS) and CloR." Chemical Communications 51, no. 36 (2015): 7681–84. http://dx.doi.org/10.1039/c5cc01652e.

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32

Kucherenko, Alexander S., Alexey A. Kostenko, Galina M. Zhdankina, Olga Yu Kuznetsova, and Sergei G. Zlotin. "Green asymmetric synthesis of Warfarin and Coumachlor in pure water catalyzed by quinoline-derived 1,2-diamines." Green Chemistry 20, no. 3 (2018): 754–59. http://dx.doi.org/10.1039/c7gc03626d.

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33

Habel, Azza, and Ishrat M. Khan. "A comparative study of the self-assembly of achiral and chiral hairy nanoparticles with polystyrene cores and poly(2-hydroxyethylmethacrylate) hairs." RSC Advances 10, no. 61 (2020): 37358–68. http://dx.doi.org/10.1039/d0ra04951d.

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34

Tizzard, Graham, Simon Coles, Amy Ellis, Rebecca Hylton, Sarah Price, and Terry Threlfall. "Polymorphic Behaviour of 3-Chloromandelic acid." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C675. http://dx.doi.org/10.1107/s2053273314093243.

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For several years we have been making detailed comparisons of the crystal structures of large sets of related compounds in an attempt to understand the factors determining the adoption of particular molecular arrangements within crystal structures. In all these projects, the XPac program [1] was used to identify similarity between structures in 0-dimensions (0D) (discrete molecular arrangements e.g. dimers, trimers etc),1D (chains or stacks), 2D (sheets or planes) and 3D (frameworks or full isostructurality) as a preliminary to the detailed comparison of the similarities so identified. As part

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35

Kope, H. H., Y. S. Tsantrizos, J. A. Fortin, and K. K. Ogilvie. "p-Hydroxybenzoylformic acid and (R)-(−)-p-hydroxymandelic acid, two antifungal compounds isolated from the liquid culture of the ectomycorrhizal fungus Pisolithus arhizus." Canadian Journal of Microbiology 37, no. 4 (1991): 258–64. http://dx.doi.org/10.1139/m91-040.

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Two antifungal compounds isolated from the liquid culture medium of Pisolithus arhizus were identified as p-hydroxybenzoylformic acid and (R)-(−)-p-hydroxymandelic acid and given the trivial names pisolithin A and pisolithin B, respectively. The efficacy of the compounds to inhibit the germination of conidia of Truncatella hartigii was compared with that of commercially available structural analogues, and a comparable range of effectiveness for 50% germination inhibition (GI50) of conidia was recorded. The commercially available synthetic compounds (R)-mandelic acid, benzoylformic acid, and ra

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36

Evans, Amanda C., Andrew S. Petit, Steven G. Guillen, Amanda J. Neukirch, Søren V. Hoffmann, and Nykola C. Jones. "Chiroptical characterization tools for asymmetric small molecules – experimental and computational approaches for electronic circular dichroism (ECD) and anisotropy spectroscopy." RSC Advances 11, no. 3 (2021): 1635–43. http://dx.doi.org/10.1039/d0ra06832b.

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Experimental and computational electronic circular dichroism spectra are used in conjunction with anisotropy spectra to chiroptically characterize mandelic acid and its derivatives into the vacuum UV.

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37

Cao, Shuang, Yong Chen, Chun-Chao Hou, Xiao-Jun Lv, and Wen-Fu Fu. "Cobalt phosphide as a highly active non-precious metal cocatalyst for photocatalytic hydrogen production under visible light irradiation." Journal of Materials Chemistry A 3, no. 11 (2015): 6096–101. http://dx.doi.org/10.1039/c4ta07149b.

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38

De la Rúa, A., B. Rodelas, J. González-López, and M. A. Gómez. "Influence of temperature on microbial colonisation of clayey schist as a support media of a submerged filter for groundwater denitrification." Water Science and Technology 55, no. 8-9 (2007): 165–72. http://dx.doi.org/10.2166/wst.2007.255.

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The effect of temperature on biofilm formation and denitrification activity was evaluated. Assays were made in a lab-scale submerged filter for the denitrification of polluted groundwater, with and without a previous inoculation. The inoculation was carried out with a selected strain of Pseudomonas mandelii. Different temperatures were tested: 5, 10, 20 and 30 °C. Biofilm observations were made, and monitoring of the denitrification capacity of the system was maintained during the experiment. Our results showed that both colonisation of the support material of the filter and biofilm maturity h

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39

Li, Zhenliang, Zunli Mo, Shujuan Meng, et al. "The construction of electrochemical chiral interfaces using hydroxypropyl chitosan." RSC Advances 7, no. 14 (2017): 8542–49. http://dx.doi.org/10.1039/c6ra27709h.

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A simple chiral electrochemical sensor based on hydroxypropyl chitosan (HPCS) covalently bound to multi-walled carbon nanotubes (MWCNTs) was developed for the recognition of mandelic acid (MA) enantiomers.

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40

Zhang, Xin, Ran Dai, Helue Sun, et al. "Mandelic acid-derived organogelators: applications of their solid form in rapid and efficient remediation of marine oil spills." Materials Chemistry Frontiers 4, no. 1 (2020): 222–30. http://dx.doi.org/10.1039/c9qm00603f.

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41

Sajini, T., Sam John, and Beena Mathew. "Rational design and tailoring of imprinted polymeric enantioselective sensor layered on multiwalled carbon nanotubes for the chiral recognition of d-mandelic acid." Polymer Chemistry 10, no. 39 (2019): 5364–84. http://dx.doi.org/10.1039/c9py01003c.

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Attempts have been made to investigate the feasibility of fabricating an enantiomeric sensor for the specific detection of d-mandelic acid layered on vinyl-MWCNT using molecular imprinting technology.

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42

Malani, Neha, Manju Baghmar, Preeti Swami та Pradeep Kumar Sharma. "Kinetics and Mechanism of the Oxidation of Some α-Hydroxyacids by Morpholinium Chlorochromate". Progress in Reaction Kinetics and Mechanism 33, № 4 (2008): 393–405. http://dx.doi.org/10.3184/146867808x379300.

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The oxidation of glycollic, lactic, malic and a few substituted mandelic acids by morpholinium chlorochromate (MCC) in dimethylsulfoxide (DMSO) leads to the corresponding oxoacids. The reaction is first order each in MCC and hydroxyacid. The reaction failed to induce the polymerisation of acrylonitrile. The oxidation of α–deuteriomandelic acid shows a primary kinetic isotope effect ( kH/ kD = 5.63 at 298 K) but does not exhibit a solvent isotope effect. The reaction is catalysed by hydrogen ions according to: kobs = a + b[H+]. The oxidation of p-methyl mandelic acid has been studied in 19 diff

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43

Tang, Zhi, Zhou Tong, Zhihui Xu, Chak-Tong Au, Renhua Qiu, and Shuang-Feng Yin. "Recyclable nickel-catalyzed C–H/O–H dual functionalization of phenols with mandelic acids for the synthesis of 3-aryl benzofuran-2(3H)-ones under solvent-free conditions." Green Chemistry 21, no. 8 (2019): 2015–22. http://dx.doi.org/10.1039/c9gc00305c.

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Cao, Jing, Wanghui Yan, and Yiling Huang. "Design, synthesis and fluorescence behavior of novel chemosensor with a thieno[2,3-b]thiophene fluorophore." RSC Advances 6, no. 103 (2016): 101313–17. http://dx.doi.org/10.1039/c6ra19610a.

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A novel chemosensor with a thieno[2,3-b] thiophene fluorophore bearing an oxazoline receptor exhibited good selectivity to the dichromate anion, and also shows enantioselectivity for mandelic acid with a chiral receptor.

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MURAKAMI, Hisamichi, and Kenichi SAKAI. "Optically active mandelic acid, C8H8O3." Journal of Synthetic Organic Chemistry, Japan 48, no. 9 (1990): 850–51. http://dx.doi.org/10.5059/yukigoseikyokaishi.48.850.

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Kirsch, Stefan, Andreas Kotthaus, Frederic Ballaschk, Vjoni Stakaj, and Fabian Mohr. "Synthesis and Resolution of a Chiral Diamine: 2,2′-(Propane-2,2-diyl)dipyrrolidine." Synthesis 49, no. 14 (2017): 3107–11. http://dx.doi.org/10.1055/s-0036-1589023.

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A short and practical synthesis of a new chiral dipyrrolidine is presented. The three-step route includes a hydrogenation and a resolution with mandelic acid, which easily affords large quantities of the title compound.

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Chen, Lili, Hongji Li, Feng Yu, and Lei Wang. "Ru-catalyzed decarboxylative cyclization of mandelic acids with acrylates: facile access to the phthalide skeleton." Chem. Commun. 50, no. 94 (2014): 14866–69. http://dx.doi.org/10.1039/c4cc06331g.

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Kiziak, Christoph, Doris Conradt, Andreas Stolz, Ralf Mattes, and Joachim Klein. "Nitrilase from Pseudomonas fluorescens EBC191: cloning and heterologous expression of the gene and biochemical characterization of the recombinant enzyme." Microbiology 151, no. 11 (2005): 3639–48. http://dx.doi.org/10.1099/mic.0.28246-0.

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The gene encoding an enantioselective arylacetonitrilase was identified on a 3·8 kb DNA fragment from the genomic DNA of Pseudomonas fluorescens EBC191. The gene was isolated, sequenced and cloned into the l-rhamnose-inducible expression vector pJOE2775. The nitrilase was produced in large quantities and purified as a histidine-tagged enzyme from crude extracts of l-rhamnose-induced cells of Escherichia coli JM109. The purified nitrilase was significantly stabilized during storage by the addition of 1 M ammonium sulfate. The temperature optimum (50 °C), pH optimum (pH 6·5), and specific activi

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Takahashi, Eiji, Katsuhiko Nakamichi, Masakatsu Furui, and Takao Mori. "R-(−)-mandelic acid production from racemic mandelic acids by Pseudomonas polycolor with asymmetric degrading activity." Journal of Fermentation and Bioengineering 79, no. 5 (1995): 439–42. http://dx.doi.org/10.1016/0922-338x(95)91258-7.

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Mostafa, Khaled Mohamed, Heba Abed El Meged Ameen, and Azza Awad El-Sanabary. "Graft Copolymerization onto Starch Nanoparticle Using Peroxymonosulfate/ Mandelic Acid as a Novel Redox Pair." Key Engineering Materials 842 (May 2020): 28–35. http://dx.doi.org/10.4028/www.scientific.net/kem.842.28.

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Unreported peroxymonosulfate/mandelic acid as a redox pair initiation system has been used to graft copolymerizes acrylonitrile onto our previously prepared starch nanoparticle (SNPs) in aqueous medium under nitrogen atmosphere. Optimization of the grafting conditions was studied and the grafting parameters were expressed in terms of graft yield %, graft reaction efficiency % and homopolymer %. Fourier transformer infrared spectroscopy (FTIR), Scanning electron microscope (SEM) and thermal gravimetric analysis (TGA) techniques confirmed the synthesis of the precursor’s materials and the succes

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