Fixation of sulfur dioxide into small molecules

Area of Science:

• Organic Chemistry
• Synthetic Chemistry

Background:

• Sulfonyl groups are prevalent in pharmaceuticals, natural products, and materials.
• Introducing sulfonyl groups into molecules is crucial for synthetic chemistry.
• Sulfur dioxide offers an attractive route for sulfonyl group incorporation.

Purpose of the Study:

• To review recent advancements in sulfur dioxide insertion reactions.
• To cover methods employing transition metal catalysis and metal-free radical processes.
• To provide an overview of the latest developments in sulfonyl group introduction.

Main Methods:

• Review of literature on sulfur dioxide insertion reactions.
• Focus on transition metal-catalyzed methods.
• Emphasis on metal-free radical-mediated processes.

Main Results:

• Development of efficient sulfur dioxide insertion techniques.
• Expansion of synthetic utility for sulfonyl group introduction.
• Demonstration of applicability under various catalytic conditions.

Conclusions:

• Sulfur dioxide insertion is a powerful strategy for synthesizing sulfonyl-containing compounds.
• Recent advances have broadened the scope and efficiency of these reactions.
• The presented methods offer versatile tools for organic synthesis.