Keto- Enol Tautomerism of 2-Hydroxy Naphthylideneaniline with Lanthanide Shift Reagent Pr(fod)3in Different Solvents

2012 ◽  
Vol 28 (3) ◽  
pp. 1189-1193
Author(s):  
L.M.N. SALEEM ◽  
R.H. SULTAN
Keyword(s):  
Shift Reagent ◽  
Lanthanide Shift Reagent

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.

Conformational study of 3-substituted thietane 1-oxides. Lanthanide shift reagent approach

1979 ◽  
Vol 44 (26) ◽  
pp. 4757-4761 ◽  
Author(s):  
David J. H. Smith ◽  
John D. Finlay ◽  
C. Richard Hall ◽  
J. J. Uebel
Keyword(s):  
Shift Reagent ◽  
Lanthanide Shift Reagent ◽  
Conformational Study

scholarly journals Application of Lanthanide Shift Reagent to the 1H-NMR Assignments of Acridone Alkaloids

Molecules ◽  
2020 ◽  
Vol 25 (22) ◽  
pp. 5383
Author(s):  
Sio-Hong Lam ◽  
Hsin-Yi Hung ◽  
Ping-Chung Kuo ◽  
Daih-Huang Kuo ◽  
Fu-An Chen ◽  
...  
Keyword(s):  
Least Squares ◽  
Nmr Assignments ◽  
Least Squares Method ◽  
Chemical Shifts ◽  
Shift Reagent ◽  
Spectral Studies ◽  
Lanthanide Shift Reagent ◽  
Planar Structures ◽  
Acridone Alkaloids ◽  
The Eu

This study investigates the application of the paramagnetic shift reagent tris(dipivaloylmethanato)-europium(III) in NMR spectral studies of permethoxyacridone alkaloids (1–3) and pyranoacridone alkaloids (4–6). The induced chemical shifts (∆δ) of all protons were observed for the same molecule, and were compared to deduce the positions resulting from the distance nearby the Eu(dpm)3. Assignment of the H-2, H-4 and H-8 of polysubstituted acridones could be distinguished based on the least-squares method of lanthanide-induced shifts plotted against the mole ratios of Eu(dpm)3 to the substrate. The developed method is not only potentially useful for determining the planar structures of polysubstituted compounds, such as acridones, anthraquinones, xanthones, flavonoids, and phenanthrenes, but also applicable for their stereochemistry.

Sign in / Sign up

Export Citation Format

Share Document