In an article, author is Yang, Xing, once mentioned the application of 96-47-9, Name is 2-Methyltetrahydrofuran, molecular formula is C5H10O, molecular weight is 86.1323, MDL number is MFCD00005367, category is chiral-nitrogen-ligands. Now introduce a scientific discovery about this category, Formula: C5H10O.
3D Nitrogen and Sulfur Co -Doped Graphene/Integrated Polysaccharides for Electrochemical Recognition Tryptophan Enantiomers
Polysaccharides based on carboxymethyl beta-cyclodextrin (beta-CD-COOH) and chitosan (CS) were synthesized by amidation reaction between-COOH on beta-CD-COOH and -NH2 on CS to develop the electrochemical sensors. The sensor was constructed by combining the advantages of the polysaccharide CS -beta-CD and the guest molecule and the 3D N, S co-doped graphene (NSG). CS-beta-CD was used as chiral selector can provide a large number of chiral sites and NSG served as base material can improve electrochemical signal. The enantioselectivity of the chiral platform for tryptophan (Trp) enantiomers was studied by differential pulse voltammetry (DPV). NSG/CS-beta-CD modified GCE showed higher electrochemical signal for L-Trp than D-Trp. When forming diastereoisomeric enantiomer-selector complexes between Trp isomers and NSG/CS-beta-CD, there showed different steric hindrances, which made it easier for L-Trp to penetrate the modified electrode film to reach the electrode surface, thus producing a larger peak current. UV-vis further proved that CS-beta-CD has higher binding energy to D-Trp. In addition, the proposed electrochemical sensor can be used to detect actual samples. Therefore, the proposed electrochemical chiral interface can be used as a promising chiral sensing platform for enantiomer recognition of chiral compounds. (C) 2019 The Electrochemical Society.
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Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis¡ªI. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
,Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis