Journal ArticleDOI
.alpha.-Methoxy-.alpha.-trifluoromethylphenylacetic acid, a versatile reagent for the determination of enantiomeric composition of alcohols and amines
About:
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
Citations
More filters
Journal ArticleDOI
Identification of 3-hydroxyoctyl β-d-glucoside and absolute configuration of free and bound octane-1,3-diol in apple fruit
TL;DR: In this article, an extract obtained from neutralized apple juice, cv. Jonathan, by LC separation on Amberlite XAD resin using ethyl acetate caution, 3-hydroxyoctyl β d -glucoside was identified by HRGC, HRGC-MS and HRGC -FTIR after per- O -methylation.
Journal ArticleDOI
Activated α-alkyl-α-arylacetic acid enantiomers for stereoselective thin-layer chromatographic and high-performance liquid chromatographic determination of chiral amines
TL;DR: In this article, the separation of racemic benoxaprofen into the two enantiomers by preparative high-performance liquid chromatography and the application of the activated enantiomer as derivatization reagents for the simultaneous stereoselective determination of chiral amines in biological material is described.
Journal ArticleDOI
Enantioselective microbial reduction of 1,1-dimethyl-1-sila-cyclohexan-2-one with growing cells of the yeast Kloeckera corticis (ATCC 20109)
TL;DR: (R)-1,1-Dimethyl-1-sila-cyclohexan-2-ol [(R)-2] was prepared by enantioselective microbial reduction with growing cells of the yeast Kloeckera corticis and repeated recrystallization of the biotransformation product from n-hexane raised the enantiomeric purity to 99% ee.
Journal ArticleDOI
The 31P‐NMR Spectroscopic Determination of the Enantiomeric Excess of Unprotected Amino Acids
TL;DR: In this paper, the enantiomeric excess of unprotected amino acids can be determined very reliable by P-31 NMR spectroscopy after derivatization as phosphonic amides.
Journal ArticleDOI
An efficient synthesis of (+)-anatoxin-a
TL;DR: In this article, an efficient synthesis (38 % overall yield in 8 steps starting from 2) of the potent neurotoxin (+)-anatoxin-a is described, which involves the stereoselective addition of 5-hexenylcopper to the chiral N-acyliminium ion 2a.
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