scholarly journals ENANTIOMERIC SHIFT DIFFERENCE INDUCED BY THE LANTHANIDE SHIFT REAGENT: ITS CORRELATION WITH ABSOLUTE CONFIGURATION OF α-AMINO ACIDS

1972 ◽  
Vol 1 (10) ◽  
pp. 857-858 ◽  
Author(s):  
Katsumi Ajisaka ◽  
Masako Kamisaku ◽  
Masatsune Kainosho
Keyword(s):  
Amino Acids ◽  
Absolute Configuration ◽  
Shift Reagent ◽  
Lanthanide Shift Reagent

Synthesis and characteristics of ethylenediamine-N,N'-di-S-α-isovalerate and isomers of its cobalt(III) complexes

1982 ◽  
Vol 47 (1) ◽  
pp. 210-216 ◽  
Author(s):  
Milan Strašák ◽  
František Bachratý ◽  
Jaroslav Majer
Keyword(s):  
Amino Acids ◽  
Absolute Configuration ◽  
Electronic Absorption ◽  
Electronic Absorption Spectra ◽  
Chemical Parameters ◽  
Methyl Group ◽  
Nmr Data ◽  
Physico Chemical ◽  
Natural Amino Acids ◽  
C Nmr

The synthesis and physico-chemical parameters are described of a new complexone based on natural amino acids, viz. ethylenediamine-N,N'-di-S-α-isovalerate (SS-EDDIV). 1H- and 13C-NMR data revealed that the methyl group in the substance are not equivalent. The isomers of the cobalt(III) complex with the asymmetric tetradentate SS-EDDIV ligand were prepared and separated; their characteristics are given. The absolute configuration of two of the five theoretically feasible isomers was determined based on their electronic absorption spectra and circular dichroism data.

scholarly journals Rapid Organocatalytic Chirality Analysis of Amines, Amino Acids, Alcohols, Amino Alcohols and Diols with Achiral Iso(thio)cyanate Probes

2021 ◽  
Author(s):  
Eryn Nelson ◽  
Jeffrey S. S. K. Formen ◽  
Christian Wolf
Keyword(s):  
Amino Acids ◽  
Absolute Configuration ◽  
Rapid Determination ◽  
Amino Alcohols ◽  
Enantioselective Synthesis ◽  
Widespread Occurrence ◽  
Chiral Compounds ◽  
New Methods ◽  
The Absolute

The widespread occurrence and significance of chiral compounds does not only require new methods for their enantioselective synthesis but also efficient tools that allow rapid determination of the absolute configuration,...

Structure of micelle bound cationic peptides by NMR spectroscopy using a lanthanide shift reagent

2020 ◽  
Vol 56 (19) ◽  
pp. 2897-2900
Author(s):  
James D. Swarbrick ◽  
John A. Karas ◽  
Jian Li ◽  
Tony Velkov
Keyword(s):  
Nmr Spectroscopy ◽  
High Resolution ◽  
Bound State ◽  
Shift Reagent ◽  
Cationic Peptides ◽  
Lanthanide Shift Reagent ◽  
Noesy Spectra

[Tm(DPA)3]3− generates paramagnetic, dispersed 2D transferred NOESY spectra for high-resolution structures of cationic peptides in the LPS micelle bound state.

Sign in / Sign up

Export Citation Format

Share Document