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1,781 Newest Publications about the topic enantiomers

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A new nanosensor for the chiral recognition of cysteine enantiomers based on gold nanorods

26-Jun-2018 | Ruijun Li; Chang-Long Zhu; Wang Li; Xintong Zhang; Yibing Ji, New Journal of Chemistry, 2018

An easy-operation, celerity and high selectivity method, which applied unmodified Gold nanorods (GNRs) as a chiral nanosensor for the chiral recognition of cysteine (Cys) enantiomers, has been developed in this work. Under the optimized conditions, L-Cys caused the GNRs aggregation, and the ...

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Taking enantiomers for a spin

22-Jun-2018 | Caroline Ash; Jake Yeston, Science , 2018

Chiral Resolution There are two common ways to distinguish mirror-image molecules, or enantiomers. The first relies on their distinct interactions with circularly polarized light, the second on their interactions with a pure enantiomer of some other molecule. Now Banerjee-Ghosh et al. report a

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Separation of enantiomers by their enantiospecific interaction with achiral magnetic substrates

22-Jun-2018 | Koyel Banerjee-Ghosh; Oren Ben Dor; Francesco Tassinari; Eyal Capua; Shira Yochelis; Amir Capua; See-Hun Yang; Stuar ..., Science , 2018

It is commonly assumed that recognition and discrimination of chirality, both in nature and in artificial systems, depend solely on spatial effects. However, recent studies have suggested that charge redistribution in chiral molecules manifests an enantiospecific preference in electron spin ...

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Molecularly imprinted polymers based on methacrylic acid and ethyleneglycol dimethacrylate for l-lysine recognition

18-Jun-2018 | Author(s): O.A. Pisarev, I.V. Polyakova, Reactive and Functional Polymers, 2018

Publication date: Available online 15 June 2018 Source:Reactive and Functional Polymers Author(s): O.A. Pisarev, I.V. Polyakova The enantiomers separation is a subject of a fundamental importance in various application fields such a pharmaceutical industry, biomedicine, food, etc. New ...

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Palladium/H+-cocatalyzed kinetic resolution of tertiary propargylic alcohols

12-Jun-2018 | Wanli Zhang; Shengming Ma, Chemical Communication, 2018

A new approach to not-readily-available optically active tertiary propargylic alcohols through palladium/H+-cocatalyzed carboxylation of racemic tertiary propargylic alcohols with CO and MeOH has been described. Both enantiomers can be obtained with no less than 90% ee utilizing (R) or ...

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Molecules, Vol. 23, Pages 1421: Synthesis of Both Enantiomers of Chiral Phenylalanine Derivatives Catalyzed by Cinchona Alkaloid Quaternary Ammonium Salts as Asymmetric Phase Transfer Catalysts

12-Jun-2018 | Jin, Lei ; Zhao, Shuai ; Chen, Xin, Molecules, 2018

Molecules, Vol. 23, Pages 1421: Synthesis of Both Enantiomers of Chiral Phenylalanine Derivatives Catalyzed by Cinchona Alkaloid Quaternary Ammonium Salts as Asymmetric Phase Transfer Catalysts Molecules doi: 10.3390/molecules23061421 Authors: Lei Jin Shuai Zhao Xin Chen A ...

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A pair of mononuclear Dy(III) enantiomers showing single-ion magnet and ferroelectric properties

01-Jun-2018 | Xi-Li Li; Cancan Zhu; Qixiang Rong; Jiahao Wei; Ruixue Li; Cai-Ming Liu, New Journal of Chemistry, 2018

Using enantiopure ligands (–)/(+)-4,5-pinene-2,2ʹ-bipyridine (LR/LS) to react with Dy(btfa)3•2H2O, respectively, a pair of Dy(III) enantiomers with the formulae Dy(btfa)3LR (R-1 ) and Dy(btfa)3LS (S-1, btfa– = 3-benzoly-1,1,1-trifluoroacetonate) were obtained and structurally characterized. Each ...

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A pair of mononuclear Dy(III) enantiomers showing single-ion magnet and ferroelectric properties

01-Jun-2018 | Xi-Li Li; Cancan Zhu; Qixiang Rong; Jiahao Wei; Ruixue Li; Cai-Ming Liu, New Journal of Chemistry, 2018

Using enantiopure ligands (–)/(+)-4,5-pinene-2,2ʹ-bipyridine (LR/LS) to react with Dy(btfa)3•2H2O, respectively, a pair of Dy(III) enantiomers with the formulae Dy(btfa)3LR (R-1 ) and Dy(btfa)3LS (S-1, btfa– = 3-benzoly-1,1,1-trifluoroacetonate) were obtained and structurally characterized. Each ...

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Chiral electrochemical recognition of tryptophan enantiomers at a multi-walled carbon nanotube-N-carboxymethyl chitosan composite modified glassy carbon electrode

30-May-2018 | Zhenliang Li; Zunli Mo; Pengji Yan; Shujuan Meng; Ruijuan Wang; Xiaohui Niu; nijuan liu; Ruibin Guo, New Journal of Chemistry, 2018

A simple chiral electrochemical sensor based on N-carboxymethyl chitosan (NCCS) covalently binding with the ethylenediamine-carboxylic multiwalled carbon nanotubes (MWCNTs-EA) was developed for enantioselective recognition of tryptophan (Trp) enantiomers, NCCS preferably combined with L-Trp than ...

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A vibrational circular dichroism (VCD) methodology for the measurement of enantiomeric excess in chiral compounds in the solid phase and for the complementary use of NMR and VCD techniques in solution: the camphor case

29-May-2018 | María Mar Quesada-Moreno; Albert Virgili; Eva Monteagudo; Rosa M. Claramunt; Juan Ramón Avilés-Moreno ..., Analyst, 2018

For the first time, the success of a methodology for the determination of enantiomeric excess (% ee) in chiral solid samples by vibrational circular dichroism (VCD) spectroscopy is reported. We have used camphor to determine the % ee in a blind sample constituted by a mixture of its two ...

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