Sandmeyer-Type Reductive Disulfuration of Anilines

Area of Science:

• Organic Chemistry
• Synthetic Chemistry

Background:

• The Sandmeyer reaction is a classic method for aryl group functionalization.
• Developing metal-free synthetic routes is a key goal in sustainable chemistry.

Purpose of the Study:

• To develop a novel transition metal/ligand-free method for the disulfuration of anilines.
• To establish a reductive disulfuration protocol as a variation of the Sandmeyer reaction.

Main Methods:

• Utilized dithiosulfonate or tetrasulfide as disulfur transfer reagents.
• Performed the reaction under mild, metal-free conditions.
• Investigated the scope across various aniline substrates and disulfur transfer reagents.

Main Results:

• Achieved successful disulfuration of anilines without transition metals or ligands.
• Demonstrated broad substrate scope and reagent compatibility.
• Successfully performed gram-scale synthesis of disulfides.

Conclusions:

• The developed method provides an efficient and valuable route for disulfide synthesis.
• This metal-free approach offers a sustainable alternative to existing methods.
• The reaction's mild conditions and broad scope make it highly applicable in organic synthesis.