Results 91 to 100 of about 4,646,169 (243)

Investigation of α‐Silylalcohols as Chiral Umpolung Carbanion Surrogates Through Stereospecific 1,2‐Brook Rearrangement

European Journal of Organic Chemistry, EarlyView.
Deprotonation of chiral α‐silyl secondary alcohols leads to masked polarity‐reversed chiral carbanions through stereospecific 1,2‐Brook rearrangement. In situ trapping with Weinreb amide electrophiles affords α‐hydroxyketones with moderate to excellent enantiospecificity (es).
TyAnn McHenry, Joshua D. Sieber
wiley   +1 more source

Green HPLC Enantioseparation of Chemopreventive Chiral Isothiocyanates Homologs on an Immobilized Chiral Stationary Phase Based on Amylose tris-[(S)-α-Methylbenzylcarbamate]

Molecules
Sulforaphane is a chiral phytochemical with chemopreventive properties. The presence of a stereogenic sulfur atom is responsible for the chirality of the natural isothiocyanate.
Francesca Romana Mammone, Alessia Panusa, Roberta Risoluti, Roberto Cirilli   +3 more
doaj   +1 more source

Separation of Alkyne Enantiomers by Chiral Column HPLC Analysis of Their Cobalt-Complexes

Molecules, 2017
Separation of the enantiomers of new chiral alkynes in strategic syntheses and bioorthogonal studies is always problematic. The chiral column high-performance liquid chromatography (HPLC) method in general could not be directly used to resolve such ...
Qiaoyun Liu, Jing Wang, Junfei Li, Xiaolei Wang, Shichao Lu, Xuan Li, Yaling Gong, Shu Xu   +7 more
doaj   +1 more source

Preparation of a novel bridged bis(β-cyclodextrin) chiral stationary phase by thiol-ene click chemistry for enhanced enantioseparation in HPLC. [PDF]

RSC Adv, 2021
Zhang N, Guo S, Gong B.
europepmc   +1 more source

Plant‐Derived Extracts Disrupt Biofilm Formation and Quorum Sensing in Yersinia enterocolitica: Insights From GC‐MS and Molecular Docking

Food Chemistry International, EarlyView.
The graphical abstract represents how natural plant products that preferentially target the specific receptors of quorum sensing could be developed to combat biofilms linked to Yersinia enterocolitica using the potent abilities of protein–ligand complexes with high docking scores.
Rajendran Thomas, Songeeta Singha, Devarshi Bharadwaj, Abinash Kumar, Dolly Sharma, Sadhana Ojha, Hirakjyoti Das, Vivek Kumar Gupta   +7 more
wiley   +1 more source

Light-assisted preparation of a cyclodextrin-based chiral stationary phase and its separation performance in liquid chromatography

, 2018
A facile light-assisted preparation procedure of a cyclodextrin-based chiral stationary phase was developed for enantioseparations in HPLC.
Shuai Zhang, Bing Yu, Hailin Cong, Qi Tang, Lilong Gao   +4 more
core   +1 more source

Achiral Molecular Recognition of Substituted Aniline Position Isomers by Crown Ether Type Chiral Stationary Phase. [PDF]

Molecules, 2021
Ohnishi A, Shibata T, Imase T, Shinkura S, Nagai K.   +4 more
europepmc   +1 more source

Rotational Anisotropy Raman Spectrometer for High‐Sensitivity Crystallographic Symmetry Analysis

Laser &Photonics Reviews, EarlyView.
We introduce rotational‐anisotropy Raman spectroscopy, an enhanced scheme that overcomes the limitations of traditional polarization‐resolved Raman techniques. This method reveals previously inaccessible phonon symmetries and resolves directional anisotropy of phonon‐polaritons in benchmark crystals, establishing a powerful new tool for characterizing ...
Di Cheng, Junxiang Li, Shizhuo Luo, Zehao Chen, Xinwei Li   +4 more
wiley   +1 more source

Immobilization of Chondroitin Sulfate A onto Monolithic Epoxy Silica Column as a New Chiral Stationary Phase for High-Performance Liquid Chromatographic Enantioseparation. [PDF]

Pharmaceuticals (Basel), 2021
Ratih R, Wätzig H, Azminah A, Asmari M, Peters B, El Deeb S.   +5 more
europepmc   +1 more source

Analysis of Carbohydrates and Glycoconjugates by Matrix‐Assisted Laser Desorption/Ionization Mass Spectrometry: An Update for 2023–2024

Mass Spectrometry Reviews, EarlyView.
ABSTRACT The use of MALDI mass spectrometry for the analysis of carbohydrates and glycoconjugates is a well‐established technique and this comprehensive review is the twelfth update of the original article published in 1999 and brings coverage of the literature to the end of 2024.
David J. Harvey
wiley   +1 more source