Ionic liquids tagged organic catalysts

Acyloxyprolines can also be modified with ionic liquid-tags. The use of the proper ionic liquid-tag enables the use of these catalysts in the presence of water and their recovery and reuse. Indeed, the solubility of ionic liquid-anchored orga-nocatalysts can be tuned by an accurate choice of cations and anions groups present in their structure, and the solubility of ionic liquids can be readily tuned with different cations and anions. This approach allows phase separation to be realized from organic as well as aqueous media. Following the proper extraction procedure, it could be possible to separate the catalytic molecule from the product and to allow its reuse. 

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