A recyclable magnetic nanoparticles supported antimony catalyst for the synthesis of N-substituted pyrroles in water

• A novel magnetic nanoparticle catalyst was prepared and characterized.
• The synthesized catalyst shows excellent catalytic performance for Clauson-Kaas reaction.
• The catalyst can be easily recovered by magnetic separation.
• The supported catalyst exhibited high stability and could be reused several times without significant loss of its catalytic activity.

A new magnetic nanoparticle-supported antimony catalyst was prepared and evaluated as a recoverable catalyst for Clauson-Kaas reaction. The reaction proceeds efficiently in aqueous medium to give the corresponding N-substituted pyrroles in high yield. The immobilized catalyst could be easily recovered by magnetic separation and recycled for six times without significant loss of its catalytic activity.

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