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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An NMR Strategy for Determination of Configuration of Remote Stereogenic Centers: 3-Methylcarboxylic Acids
Thomas R. Hoye,Dmitry Koltun +1 more
TL;DR: In this paper, a method for determining the absolute configuration of carboxylic acids bearing a methyl substituent at C(3) has been developed, which can be adapted to other substructures.
Journal ArticleDOI
A short synthesis of (S)-α-(diphenylmethyl)alkyl amines from amino acids
David O'Hagan,Mustafa Tavasli +1 more
TL;DR: A range of (S )-α-(diphenylmethyl)alkyl amines were prepared from the corresponding ( S ) -α-amino acid ester hydrochlorides as discussed by the authors.
Journal ArticleDOI
Two-Directional Synthesis of Polycyclopropanes. An Approach to the Quinquecyclopropane Fragment of U-106305
TL;DR: In this paper, the stereoselective preparation of three stereoisomeric tercyclopropanes and a quinquecyclopropane was investigated, and it was shown that the reagent-controlled transformations are far more effective for the stereosomeric preparation than are the reactions which rely upon the influence of the substrate stereocenters.
Journal ArticleDOI
Asymmetric silyl nitronate cycloadditions with bornane-10,2-sultam derivatives
Byeang Hyean Kim,Ju Young Lee +1 more
TL;DR: Asymmetric silyl nitronate cycloadditions with N -acryloyl (2 R )-bornane-10,2-sultam, N -acetyloyl(2 S )-NB-10-2-SULTAM, and N -methacrylyoyl-(2 R ), N-acetyl (2 S ), Bornane10, 2-Sultam have been studied in this paper.
Journal ArticleDOI
Enzymatic resolution of 2,3-epoxyalcohols, intermediates in the synthesis of the gypsy moth sex pheromone
TL;DR: An efficient resolution of 2,3-epoxyalcohols 2a-b were obtained both by enzymatic hydrolysis and transesterification in organic solvent: (25,3R) 2b and (2R,35) 2a thus obtained are chiral synthons for the synthesis of (+)- Disparlure 1.
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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
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