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Electrophilicity parameters for sigma-complexation by uncharged electron-deficient aromatic and heteroaromatic
François Terrier1, Sami Lakhdar, Régis Goumont
1Laboratoire SIRCOB, UMR 8086, Institut Lavoisier-Franklin, University of Versailles, 45, Avenue des Etats-Unis, 78035 Versailles, France. terrier@chimie.uvsq.fr
Chemical Communications (Cambridge, England)
|November 16, 2004
Summary
Researchers ranked the reactivity of neutral electrophiles using reference nucleophiles on the Mayr electrophilicity scale. This work advances understanding of sigma-complexation and SNAr substitution reactions.
Area of Science:
- Organic Chemistry
- Reaction Mechanisms
Background:
- Understanding electrophile reactivity is crucial for predicting reaction outcomes.
- The Mayr electrophilicity scale provides a quantitative measure for electrophile behavior.
Purpose of the Study:
- To rank the reactivity of diverse neutral electrophiles.
- To apply the Mayr electrophilicity scale for a broad range of electrophiles.
- To rationalize sigma-complexation and SNAr substitution processes.
Main Methods:
- Utilized a series of reference nucleophiles.
- Employed the established Mayr electrophilicity scale framework.
- Systematically evaluated electrophile reactivity through controlled experiments.
Main Results:
- Successfully ranked the reactivity of neutral electrophiles with varying structures and reactivities.
- Demonstrated the applicability of the Mayr scale across a wide electrophile spectrum.
- Established a quantitative basis for electrophilicity.
Conclusions:
- The Mayr electrophilicity scale effectively ranks diverse neutral electrophiles.
- This ranking facilitates the rationalization of sigma-complexation and SNAr reactions.
- Provides a predictive tool for organic synthesis and reaction design.