Chiral Nanographene Propeller Embedding Six Enantiomerically Stable [5]Helicene Units
نویسندگان
چکیده
منابع مشابه
Synthesis of enantiomerically pure Tröger's base derivatives via chiral disulfoxides.
The preparation, full characterization and determination of the absolute configuration of diastereomerically pure disulfoxide derivatives of Tröger's base are described. A sulfinyl-lithium exchange followed by the reaction with electrophiles affords synthetically meaningful amounts of enantiomerically pure 4,10-disubstituted Tröger's base analogues without any erosion of the stereogenic informa...
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An efficient one-pot three-component procedure for the synthesis of new chiral spiro-oxindolopyrrolizidines with highly regio-, diastereo-, and enantioselective from 1,3-dipolar cycloaddition of azomethine ylides and optically pure active cinamoyl oxazolidinone are described. The process occurs at room temperature in aqueous ethanol as green solvent and in the absence of any bidentate chelating...
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We compute a stable polynomial matrix embedding a stabilizable one. The algorithm resembles the one described by Beelen and Van Dooren for the unimodular embedding problem. We also desribe the numerical problems associated with this kind of algorithms, and point out why the stable embedding algorithm has better prospects than its unimodular counterpart.
متن کاملChiral Induction in Cycloaddition Reactions of Azomethine Ylides to Synthesis of New Enantiomerically Pure Spiro Oxindolopyrrolizidines
An efficient one-pot three-component procedure for the synthesis of new chiral spiro-oxindolopyrrolizidines with highly regio-, diastereo-, and enantioselective from 1,3-dipolar cycloaddition of azomethine ylides and optically pure active cinamoyl oxazolidinone are described. The process occurs at room temperature in aqueous ethanol as green solvent and in the absence of any bidentate chelating...
متن کاملErratum: A molecular propeller effect for chiral separation and analysis
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ژورنال
عنوان ژورنال: Journal of the American Chemical Society
سال: 2017
ISSN: 0002-7863,1520-5126
DOI: 10.1021/jacs.7b07622