Tunable stereoselectivity in a wireless electrochemical microreactor using natural chiral ionic liquids
Sara Grecchi1, Andrea Mezzetta2, Lorenzo Guazzelli2
1Dipartimento di Chimica, Università degli Studi di, Milano Via Golgi 19 Milano 20133 Italy sara.grecchi@unimi.it serena.arnaboldi@unimi.it.
Green Chemistry : an International Journal and Green Chemistry Resource : GC
|November 6, 2025
Summary
A novel natural chiral ionic liquid (NCIL) acts as a wireless microreactor for enantioselective synthesis, achieving high selectivity. This electric-field-controlled, catalyst-free method offers a sustainable approach to asymmetric reactions.
Area of Science:
- Green chemistry
- Organic synthesis
- Electrochemistry
Background:
- Asymmetric synthesis is crucial for pharmaceuticals and fine chemicals.
- Developing sustainable and efficient catalytic systems remains a challenge.
- Chiral ionic liquids offer unique properties for chemical transformations.
Purpose of the Study:
- To develop a novel, catalyst-free method for enantioselective synthesis.
- To utilize a natural chiral ionic liquid (NCIL) as a wireless microreactor.
- To demonstrate dynamic stereocontrol modulated by an external electric field.
Main Methods:
- A single drop of NCIL was employed as a microreactor.
- Enantioselective synthesis reactions were performed under an external electric field.
- The enantiomeric excess (ee) was measured to evaluate selectivity.
Main Results:
- The NCIL microreactor achieved high enantioselectivity (>90% ee).
- Dynamic stereocontrol was successfully demonstrated, with ee directly tunable by the electric field.
- The catalyst-free strategy proved effective for asymmetric reactions.
Conclusions:
- Natural chiral ionic liquids can serve as efficient wireless microreactors.
- This approach offers a sustainable and tunable platform for asymmetric synthesis.
- The electric field modulation provides precise control over stereochemistry.
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