Highly consistent correlation between absolute configuration of α-amino acids and their shift induced by the n.m.r. chiral shift reagent propylenediaminetetra-acetatoeuropium(III) in aqueous solution

1987 ◽  
pp. 670-671 ◽  
Author(s):  
Kuninobu Kabuto ◽  
Yoichi Sasaki
Keyword(s):  
Aqueous Solution ◽  
Amino Acids ◽  
Absolute Configuration ◽  
Shift Reagent ◽  
Chiral Shift Reagent

A new chiral shift reagent for the determination of enantiomeric excess and absolute configuration in cyanohydrins

2009 ◽  
pp. 1067 ◽  
Author(s):  
Lomary S. Moon ◽  
Ravinder S. Jolly ◽  
Yoganjaneyulu Kasetti ◽  
Prasad V. Bharatam
Keyword(s):  
Absolute Configuration ◽  
Enantiomeric Excess ◽  
Shift Reagent ◽  
Chiral Shift Reagent

New Chiral NMR Shift Reagent for α-Amino Acids andN-Protected Oligopeptides in Aqueous Solution

2001 ◽  
Vol 30 (1) ◽  
pp. 4-5 ◽  
Author(s):  
Masaaki Watanabe ◽  
Takayuki Hasegawa ◽  
Hiroyuki Miyake ◽  
Yoshitane Kojima
Keyword(s):  
Aqueous Solution ◽  
Amino Acids ◽  
Shift Reagent

Chiral Shift Reagent for Amino Acids Based on Resonance-Assisted Hydrogen Bonding

2004 ◽  
Vol 6 (15) ◽  
pp. 2591-2593 ◽  
Author(s):  
Jik Chin ◽  
Dong Chan Kim ◽  
Hae-Jo Kim ◽  
Francis B. Panosyan ◽  
Kwan Mook Kim
Keyword(s):  
Amino Acids ◽  
Hydrogen Bonding ◽  
Shift Reagent ◽  
Chiral Shift Reagent

Enantiospecific synthesis of optically pure (S)-(+)-3-hydroxy-1-phenyl-1-butanone by bakers' yeast reduction

1986 ◽  
Vol 64 (8) ◽  
pp. 1599-1601 ◽  
Author(s):  
Robert Chênevert ◽  
Sonia Thiboutot
Keyword(s):  
Absolute Configuration ◽  
Shift Reagent ◽  
Enantiomeric Purity ◽  
Nmr Analysis ◽  
Chiral Shift Reagent ◽  
Enantiospecific Synthesis ◽  
The Absolute ◽  
Optically Pure

Bakers' yeast reduces 1-phenyl-1,3-butanedione with high chemo- and enantio-selectivity to give (S)-(+)-3-hydroxy-1-phenyl-1-butanone. The enantiomeric purity (> 98%) was determined by nmr analysis using a chiral shift reagent and the absolute configuration was determined by correlation with ethyl (S)-(+)-3-hydroxybutyrate.

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