Determination of Enantiomeric Purity for Chiral π‐Basic Aromatic Alcohols Chiral Samples by 1 H NMR Spectroscopy

2019 ◽  
Vol 41 (1) ◽  
pp. 4-9 ◽  
Author(s):  
Kyu Sung Heo ◽  
Jae Jeong Ryoo
Keyword(s):  
Nmr Spectroscopy ◽  
Enantiomeric Purity ◽  
H Nmr ◽  
Aromatic Alcohols

Chemical Shift Nonequivalence of Enantiomers of Amino Acid Derivatives in 1H NMR and 19F NMR Spectroscopy Induced by L-Chirasil- Val.

1992 ◽  
Vol 47 (7) ◽  
pp. 1034-1036 ◽  
Author(s):  
Bernhard Koppenhoefer ◽  
Michael Hummel
Keyword(s):  
Amino Acid ◽  
Nmr Spectroscopy ◽  
Chemical Shift ◽  
Methyl Esters ◽  
Enantiomeric Purity ◽  
Peak Splitting ◽  
H Nmr ◽  
Acid Methyl ◽  
Amino Acid Methyl Esters

Enantiomers of N-trifluoroacetyl-amino acid methyl esters in CC14 solution, after addition of the chiral polysiloxane (L)-Chirasil-Val, display a chemical shift nonequivalence ΔΔδ in both 1H NMR and 19F NMR spectroscopy. The effects found for the leucine and valine derivatives can be correlated with the thermodynamic parameters of interaction in the undiluted system, as determined by gas chromatography. In CDC13 solution, no peak splitting was observed. The method is potentially useful for the determination of the enantiomeric purity of substrates of low volatility.

Determination of the Enantiomeric Purity of the Antiasthmatic Drug Montelukast by Means of 1 H NMR Spectroscopy

Chirality ◽  
2013 ◽  
Vol 25 (11) ◽  
pp. 780-786 ◽  
Author(s):  
Jordi Redondo ◽  
Anna Capdevila ◽  
Sonia Ciudad
Keyword(s):  
Nmr Spectroscopy ◽  
Enantiomeric Purity ◽  
H Nmr ◽  
Antiasthmatic Drug

Determination of the enantiomeric purity of chiral allyl alcohols and allyl ethers by platinum-195 NMR spectroscopy

1988 ◽  
Vol 53 (24) ◽  
pp. 5768-5770 ◽  
Author(s):  
Piero Salvadori ◽  
Gloria Uccello-Barretta ◽  
Sergio Bertozzi ◽  
Roberta Settambolo ◽  
Raffaello Lazzaroni
Keyword(s):  
Nmr Spectroscopy ◽  
Enantiomeric Purity ◽  
Allyl Ethers ◽  
Allyl Alcohols

Determination of the content of fatty acid methyl esters (FAME) in biodiesel samples obtained by esterification using 1 H-NMR spectroscopy

2008 ◽  
Vol 46 (11) ◽  
pp. 1051-1054 ◽  
Author(s):  
Vinicius M. Mello ◽  
Flavia C. C. Oliveira ◽  
William G. Fraga ◽  
Claudia J. do Nascimento ◽  
Paulo A. Z. Suarez
Keyword(s):  
Fatty Acid ◽  
Nmr Spectroscopy ◽  
Fatty Acid Methyl Esters ◽  
Methyl Esters ◽  
H Nmr ◽  
Acid Methyl

ChemInform Abstract: Determination of the Enantiomeric Purity of Chiral Allyl Alcohols and Allyl Ethers by 195Pt NMR Spectroscopy.

ChemInform ◽  
1989 ◽  
Vol 20 (20) ◽  
Author(s):  
P. SALVADORI ◽  
G. UCCELLO-BARRETTA ◽  
S. BERTOZZI ◽  
R. SETTAMBOLO ◽  
R. LAZZARONI
Keyword(s):  
Nmr Spectroscopy ◽  
Enantiomeric Purity ◽  
Allyl Ethers ◽  
Allyl Alcohols
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