Recent Advances in Transition-Metal-Catalyzed Iodination of Arenes

Abstract

Aryl and heteroaryl iodides are ubiquitous synthetic building blocks used in a wide range of transformations including coupling and radical reactions. These compounds are also found as components of many pharmaceutically active agents and used for medical imaging. Due to their importance, a range of transition-metal-catalyzed methods have recently been developed for their efficient preparation. This short review gives an overview of the progress made and highlights the benefits of transition-metal-catalyzed methods over more traditional approaches.

1 Introduction

2 Halogen-Exchange Reactions

3 Copper-Catalyzed Iodination Using Boronic Acids and Esters

4 Electrophilic Aromatic Substitution

4.1 Gold-Catalyzed Reactions

4.2 Indium-, Iron-, and Silver-Catalyzed Reactions

5 Iodination via C–H Activation

5.1 Palladium-Catalyzed Reactions

5.2 Rhodium-, Ruthenium-, and Cobalt-Catalyzed Reactions

5.3 Copper-Catalyzed Reactions

6 Iododecarboxylation

7 Conclusions

Key words

iodination - halogen exchange - electrophilic aromatic substitution - C–H activation - iododecarboxylation

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