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¹H NMR: Long-Range Coupling

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Synthesis of Antiviral Tetrahydrocarbazole Derivatives by Photochemical and Acid-catalyzed C-H Functionalization via Intermediate Peroxides (CHIPS)

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Intermolecular oxidative cross-coupling of arenes.

James A Ashenhurst¹

¹Institute of Chemistry, Hebrew University of Jerusalem, 91904 Jerusalem, Israel. ashenhur@chem.ch.huji.ac.il

Chemical Society Reviews

|January 30, 2010

Summary

Directly coupling unfunctionalized arenes offers a powerful alternative to traditional Suzuki reactions for biaryl synthesis. This review highlights recent advances in selective arene oxidation and C-H activation for oxidative cross-coupling.

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Area of Science:

Organic Chemistry
Catalysis
Synthetic Methodology

Background:

Biaryls are crucial structural motifs in pharmaceuticals, materials science, and natural products.
Traditional biaryl synthesis often relies on cross-coupling reactions like the Suzuki reaction.
Direct coupling of unfunctionalized arenes presents an attractive, atom-economical alternative.

Purpose of the Study:

To review recent advancements in the direct oxidative coupling of arenes.
To focus on intermolecular strategies for biaryl synthesis via C-H activation.
To highlight selective arene oxidation methods.

Main Methods:

Review of literature on direct arene coupling and oxidative cross-coupling.
Focus on metal-catalyzed C-H activation strategies.
Analysis of selective intermolecular arene oxidation techniques.

Main Results:

Demonstration of direct oxidative coupling as a viable strategy for biaryl synthesis.
Highlighting advances in selective C-H functionalization for arene coupling.
Showcasing various metal catalysts and oxidation systems.

Conclusions:

Direct oxidative coupling offers a powerful and efficient route to biaryls.
C-H activation is key to developing novel and sustainable biaryl synthesis methods.
This field continues to rapidly evolve with new catalytic systems and strategies.