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Coulomb Explosion Imaging as a Tool to Distinguish Between Stereoisomers
08:51

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Published on: August 18, 2017

An organocascade kinetic resolution.

Patrick G McGarraugh1, Stacey E Brenner-Moyer

  • 1Department of Chemistry, Brooklyn College and the City University of New York, 2900 Bedford Avenue, Brooklyn, New York 11210, USA.

Organic Letters
|November 17, 2011
PubMed
Summary
This summary is machine-generated.

This study introduces a novel organocascade kinetic resolution using iminium and enamine catalysis. It yields enantioenriched tetrahydropyrans with unique configurations, offering new insights into asymmetric induction.

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Area of Science:

  • Organic Chemistry
  • Asymmetric Catalysis

Background:

  • Iminium catalysis is widely used for Michael additions.
  • Enamine catalysis is less common for kinetic resolutions.

Purpose of the Study:

  • To develop a novel organocascade kinetic resolution.
  • To explore asymmetric induction in iminium and enamine catalysis.

Main Methods:

  • Sequential iminium-catalyzed oxa-Michael addition followed by enamine-catalyzed intermolecular reaction.
  • Utilized a diphenyl prolinol silyl ether catalyst.

Main Results:

  • Achieved kinetic resolution of iminium-catalyzed oxa-Michael addition products.
  • Generated enantioenriched 2,6-cis-tetrahydropyrans.
  • Observed novel cascade products with unusual stereochemical configurations.

Conclusions:

  • Demonstrated the first organocascade kinetic resolution using enamine catalysis.
  • Provided new insights into asymmetric induction mechanisms with diphenyl prolinol silyl ether.
  • Expanded the scope of stereochemical outcomes in organocatalysis.