Polyvalent iodine in organic chemistry

Area of Science:

• Organic Chemistry
• Synthetic Chemistry
• Organometallic Chemistry

Background:

• Polyvalent iodine compounds, specifically tricoordinate I(III) and pentacoordinate I(V) species, have a long history.
• Over the past two decades, novel hypervalent iodine reagents have emerged.
• These reagents and their derived methodologies are increasingly vital in modern organic synthesis.

Purpose of the Study:

• To provide an overview of developments in polyvalent iodine chemistry.
• To highlight the chemistry and applications of aryl-, alkenyl-, and alkynyliodonium salts.
• To encourage further research and application of these compounds in organic chemistry.

Main Methods:

• Review of existing literature on polyvalent iodine compounds.
• Emphasis on synthetic methodologies utilizing hypervalent iodine reagents.
• Focus on the preparation and reactivity of iodonium salts.

Main Results:

• Introduction of new hypervalent iodine reagents.
• Development of synthetic strategies employing these reagents.
• Demonstration of the utility of aryl-, alkenyl-, and alkynyliodonium salts in organic synthesis.

Conclusions:

• Hypervalent iodine chemistry has seen substantial progress.
• Iodonium salts are versatile tools in preparative organic chemistry.
• Further exploration of polyvalent iodine compounds promises broader applications.