ChemInform Abstract: Stereogenic (Chiral) Methyl Groups: Determination of Configuration by Direct Tritium NMR Spectroscopy.

ChemInform ◽  
1990 ◽  
Vol 21 (11) ◽  
Author(s):  
F. A. L. ANET ◽  
D. J. O'LEARY ◽  
J. M. BEALE ◽  
H. G. FLOSS
Keyword(s):  
Nmr Spectroscopy ◽  
Methyl Groups ◽  
Tritium Nmr

Stereogenic (chiral) methyl groups: determination of configuration by direct tritium NMR spectroscopy

1989 ◽  
Vol 111 (24) ◽  
pp. 8935-8936 ◽  
Author(s):  
Frank A. L. Anet ◽  
Daniel J. O'Leary ◽  
John M. Beale ◽  
Heinz G. Floss
Keyword(s):  
Nmr Spectroscopy ◽  
Methyl Groups ◽  
Tritium Nmr

Direct determination of proton-exchange kinetics by 320-MHz tritium NMR spectroscopy

1991 ◽  
Vol 29 (5) ◽  
pp. 509-512 ◽  
Author(s):  
Richard E. Dixon ◽  
Philip G. Williams ◽  
Manouchehr Saljoughian ◽  
Mervyn A. Long ◽  
Andrew Streitwieser
Keyword(s):  
Nmr Spectroscopy ◽  
Direct Determination ◽  
Proton Exchange ◽  
Tritium Nmr ◽  
Exchange Kinetics

Quantitative Determination of Krill Oil Composition by ATR-FTIR, NIR, and 31P NMR Spectroscopy

2020 ◽  
Author(s):  
Ashraf Ismail ◽  
Sanaz Molaye Moghaddam ◽  
Jean-Pierre MetabanzoulouSarya Aziz ◽  
Jacqueline Sedman ◽  
Mazen Bahadi
Keyword(s):  
Nmr Spectroscopy ◽  
Quantitative Determination ◽  
31P Nmr ◽  
31P Nmr Spectroscopy ◽  
Krill Oil ◽  
Oil Composition

Determination of alcohols in mixtures by 19F NMR spectroscopy using hexefluoroacetone reagent

1982 ◽  
Vol 47 (7) ◽  
pp. 1973-1978 ◽  
Author(s):  
Jiří Karhan ◽  
Zbyněk Ksandr ◽  
Jiřina Vlková ◽  
Věra Špatná
Keyword(s):  
Standard Deviation ◽  
Nmr Spectroscopy ◽  
Standard Method ◽  
Internal Standard ◽  
Internal Standard Method ◽  
Concentration Region ◽  
Experimental Conditions ◽  
Curve Method ◽  
Sample Preparation Procedure

The determination of alcohols by 19F NMR spectroscopy making use of their reaction with hexafluoroacetone giving rise to hemiacetals was studied on butanols. The calibration curve method and the internal standard method were used and the results were mutually compared. The effects of some experimental conditions, viz. the sample preparation procedure, concentration, spectrometer setting, and electronic integration, were investigated; the conditions, particularly the concentrations, proved to have a statistically significant effect on the results of determination. For the internal standard method, the standard deviation was 0.061 in the concentration region 0.032-0.74 mol l-1. The method was applied to a determination of alcohols in the distillation residue from an oxo synthesis.

Determination of Tautomeric Preference of Fenobam in Solution by High Resolution NMR Spectroscopy

2020 ◽  
Author(s):  
Xuming Sha ◽  
Shaodong Chen ◽  
Xiaojing Zheng ◽  
Xin Ye ◽  
Hailu Zhang ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
High Resolution ◽  
High Resolution Nmr
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