Journal ArticleDOI
.alpha.-Methoxy-.alpha.-trifluoromethylphenylacetic acid, a versatile reagent for the determination of enantiomeric composition of alcohols and amines
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This article is published in Journal of Organic Chemistry.The article was published on 1969-09-01. It has received 2312 citations till now. The article focuses on the topics: Reagent.read more
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A transketolase-based synthesis of (+)-exo-brevicomin
TL;DR: In this paper, the authors synthesize the beetle pheromone (+)- exo -brevicomin using a combination of chemical and enzymatic steps, using the commercially available enzyme transketolase (EC 2.2.1).
Journal ArticleDOI
Direct 1H NMR assay of the enantiomeric composition of amines and β-amino alcohols using o-acetyl mandelic acid as a chiral solvating agent
TL;DR: The chiral solvating agent (R )-O-Acetyl Mandelic Acid (ROAM) is an effective agent for the direct 1H NMR assay of the enantiomeric composition of amines and amino-alcohols as discussed by the authors.
Journal ArticleDOI
Baker’s yeast-mediated enantioselective synthesis of the bisabolane sesquiterpenes (+)-curcuphenol, (+)-xanthorrhizol, (−)-curcuquinone and (+)-curcuhydroquinone
Claudio Fuganti,Stefano Serra +1 more
TL;DR: The Enantiopure 6a-c is a chiral building block for the synthesis of bisabolane sesquiterpenes and their usefulness is shown in the preparation of (S)-(+)-curcuphenol, (S)(−)-curcuquinone and (S )-(+))-curcuhydroquinone.
Journal ArticleDOI
Use of shift reagent with diastereomeric MTPA esters for determination of configuration and enantiomeric purity of secondary carbinols in 1H NMR spectroscopy
TL;DR: In this article, the relative magnitude of the lanthanide induced shift (LIS) for 1 H NMR spectra of the OMe group of diastereomeric (R )-(+)-α-methoxy-α-trifluoromethylphenylacetate esters [( R )-(+))-MTPA esters (3 )] of thirty-two secondary carbinols have been measured.
Journal ArticleDOI
Chiral biarylamido/anisole complexes of yttrium in enantioselective aminoalkene hydaroamination/cyclisation
TL;DR: A group of chiral, dibasic, biaryl-bridged amido proligands containing peripheral methoxyphenyl (anisole) ligation are developed for the synthesis of new amide complexes of yttrium and lanthanum, consistent with low rigidity in the molecular structure.
Related Papers (5)
Nuclear magnetic resonance enantiomer regents. Configurational correlations via nuclear magnetic resonance chemical shifts of diastereomeric mandelate, O-methylmandelate, and .alpha.-methoxy-.alpha.-trifluoromethylphenylacetate (MTPA) esters
James A. Dale,Harry S. Mosher +1 more