Chiral Induction and Remote Chiral Communication in Quinoline Oligoamide Foldamers for Determination of Enantiomeric Excess and Absolute Configuration of Chiral Amines and Their Derivatives

2019 ◽  
Vol 25 (62) ◽  
pp. 14162-14168 ◽  
Author(s):  
Lu Zheng ◽  
Yulin Zhan ◽  
Lin Ye ◽  
Dan Zheng ◽  
Ying Wang ◽  
...  
Keyword(s):  
Absolute Configuration ◽  
Enantiomeric Excess ◽  
Chiral Amines ◽  
Chiral Induction

Role of Barium(II) in the Determination of the Absolute Configuration of Chiral Amines by1H NMR Spectroscopy

2006 ◽  
Vol 71 (3) ◽  
pp. 1119-1130 ◽  
Author(s):  
Rosa García ◽  
José M. Seco ◽  
Saulo A. Vázquez ◽  
Emilio Quiñoá ◽  
Ricardo Riguera
Keyword(s):  
Nmr Spectroscopy ◽  
Absolute Configuration ◽  
Chiral Amines ◽  
The Absolute

ChemInform Abstract: A 1H NMR Method for the Determination of Enantiomeric Excess and Absolute Configuration of cis-Dihydrodiol Metabolites of Polycyclic Arenes and Heteroarenes.

ChemInform ◽  
2010 ◽  
Vol 23 (40) ◽  
pp. no-no
Author(s):  
D. R. BOYD ◽  
N. D. SHARMA ◽  
R. BOYLE ◽  
R. A. S. MCMORDIE ◽  
J. CHIMA ◽  
...  
Keyword(s):  
1H Nmr ◽  
Absolute Configuration ◽  
Enantiomeric Excess ◽  
Nmr Method

scholarly journals In Situ Assembly of Octahedral Fe(II) Complexes for the Enantiomeric Excess Determination of Chiral Amines Using Circular Dichroism Spectroscopy

2012 ◽  
Vol 134 (9) ◽  
pp. 4398-4407 ◽  
Author(s):  
Justin M. Dragna ◽  
Gennaro Pescitelli ◽  
Lee Tran ◽  
Vincent M. Lynch ◽  
Eric V. Anslyn ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Enantiomeric Excess ◽  
Circular Dichroism Spectroscopy ◽  
Chiral Amines ◽  
Circular Dichroïsm

A new chiral shift reagent for the determination of enantiomeric excess and absolute configuration in cyanohydrins

2009 ◽  
pp. 1067 ◽  
Author(s):  
Lomary S. Moon ◽  
Ravinder S. Jolly ◽  
Yoganjaneyulu Kasetti ◽  
Prasad V. Bharatam
Keyword(s):  
Absolute Configuration ◽  
Enantiomeric Excess ◽  
Shift Reagent ◽  
Chiral Shift Reagent

scholarly journals Helical springs as a color indicator for determining chirality and enantiomeric excess

2021 ◽  
Vol 7 (27) ◽  
pp. eabg5381
Author(s):  
Katsuhiro Maeda ◽  
Daisuke Hirose ◽  
Mai Nozaki ◽  
Yoichi Shimizu ◽  
Taro Mori ◽  
...  
Keyword(s):  
Conjugated Polymer ◽  
Enantiomeric Excess ◽  
Chiral Amines ◽  
Polymer Backbone ◽  
Helical Springs ◽  
Color Changes ◽  
Unique Color ◽  
Site Monitoring ◽  
Color Indicator

Chirality plays a key role in the physiological system, because molecular functionalities may drastically alter due to a change in chirality. We report herein a unique color indicator with a static helicity memory, which exhibits visible color changes in response to the chirality of chiral amines. A difference of less than 2% in the enantiomeric excess (ee) values causes a change in the absorption that is visible to the naked eyes. This was further quantified by digital photography by converting to RGB values. This system relies on the change in the tunable helical pitch of the π-conjugated polymer backbone in specific solvents and allows rapid on-site monitoring of chirality of nonracemic amines, including drugs, and the simultaneous quantitative determination of their ee values.

Enantiomeric excess and absolute configuration determination of cis-dihydrodiols from bacterial metabolism of monocyclic arenes

1991 ◽  
Vol 113 (2) ◽  
pp. 666-667 ◽  
Author(s):  
Derek R. Boyd ◽  
M. R. J. Dorrity ◽  
M. V. Hand ◽  
J. F. Malone ◽  
N. D. Sharma ◽  
...  
Keyword(s):  
Absolute Configuration ◽  
Enantiomeric Excess ◽  
Bacterial Metabolism
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