Some new protocols for the assignment of absolute configuration by NMR spectroscopy using chiral solvating agents and CDAs

SK Mishra, N Suryaprakash - Tetrahedron: Asymmetry, 2017 - Elsevier
The utility of enantiopure BINOL (1, 10-Bi-2-naphthol), in a ternary ion-pair complex, which is
obtained using a carboxylic acid and an organic base, as a versatile chiral solvating agent …

Enantiodifferentiation of promethazine using (S)-(−)-BINOL as the NMR chiral solvating agent: determination of the enantiomeric purity and performance comparison …

P Borowiecki - Tetrahedron: Asymmetry, 2015 - Elsevier
The enantiomeric excess of optically active promethazine was determined for the first time
by a proton nuclear magnetic resonance (1 H NMR) spectroscopic enantiodifferentiation …

Assignment of the absolute configuration of hydroxy acids using 1H NMR spectroscopy: a simple and rapid approach

SK Mishra, N Suryaprakash - Tetrahedron: Asymmetry, 2017 - Elsevier
A simple, rapid and highly effective protocol for assigning the absolute configuration of
various chiral α-hydroxy acids and their derivatives has been established by involving the …

A simple ternary ion-pair complexation protocol for testing the enantiopurity and the absolute configurational analysis of acid and ester derivatives

N Arya, SK Mishra, N Suryaprakash - New Journal of Chemistry, 2018 - pubs.rsc.org
A simple ternary ion-pair complexation protocol has been developed for rapid testing of the
enantiopurity and the assignment of absolute configurations of various acid and ester …

A versatile ternary ion pair complex of 2′-amino-1, 1′-binaphthalen-2-ol for sensing enantiomers and assignment of absolute configuration

A Lakshmipriya, G Sumana, NR Suryaprakash - Tetrahedron: Asymmetry, 2017 - Elsevier
Amino-1, 1′-binaphthalen-2-ol (NOBIN) serves as a versatile chiral solvating agent (CSA)
in the presence of trifluoromethanesulfonic acid (TFMS). The formation of a ternary complex …

[PDF][PDF] Simple Boronic Acid Based NMR Protocols for Determining the Enantiomeric Excess of Chiral Amines, Hydroxylamines and Diols

DA Tickell - 2015 - researchportal.bath.ac.uk
Three simple protocols for the determination of the enantiomeric excess of chiral amines,
hydroxylamines and diols have been developed utilising boronic acid templates. In Chapter …