What would be the most suitable alternative catalyst to replace [Msim]HSO₄?

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Ping Wu

What is the exact reaction or process you are focusing on? Some catalysts work better under specific conditions, so narrowing it down could help refine the options further. To replace [Msim]HSO₄, solid acid catalysts like zeolites or sulfonated resins (e.g., Nafion) are good alternatives. Ionic liquids such as [Bmim]HSO₄ also work well, offering high catalytic efficiency and recyclability. Additionally, heteropolyacids (HPAs) are another option, known for their thermal stability and strong catalytic activity. The best choice depends on your specific reaction conditions. Hope this helps!

Khatendra T Reang

Thank you Ping Wu for your reply. Actually I'm focusing for a Michael Addition (1,4 addition) reaction.