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Size-Selective Functionalization of Sugars and Polyols Using Zeolites for Renewable Surfactant Production.
Songlan Sun1, Zezhong John Li1, Yu-Cheng Lin1
1Laboratory of Sustainable and Catalytic Processing, Institute of Chemicals Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, CH-1015, Switzerland.
Angewandte Chemie (International Ed. in English)
|August 16, 2025
Summary
Zeolites enable single-step, size-selective acetalization of sugars and polyols. This efficient method produces novel bio-based surfactants with excellent performance, offering sustainable alternatives to conventional chemicals.
Area of Science:
- Green Chemistry
- Materials Science
- Catalysis
Background:
- Diol functionalization via acetalization is crucial for carbohydrate and polyol chemistry.
- Selective functionalization often requires complex, multi-step protection/deprotection strategies.
- Developing efficient, single-step methods for selective acetalization remains a challenge.
Purpose of the Study:
- To introduce a novel, single-step zeolite-catalyzed method for size-selective acetalization of sugars and polyols.
- To demonstrate the potential of this approach for producing functional chemicals and bio-based materials.
- To investigate the performance of resulting bio-based amphiphiles.
Main Methods:
- Utilizing zeolites for size-selective pore confinement to control acetalization reactions.
- Carefully matching substrate size with zeolite morphology for optimal selectivity.
- Characterizing the yields and properties of the produced monoacetals.
Main Results:
- Achieved high selectivity in single-step acetalization of sugars and polyols using zeolites.
- Obtained good-to-excellent yields (70%-95%) of novel polyol/sugar monoacetals.
- Developed bio-based surfactants from xylose-based monoacetals with superior surface activity and hard-water resistance compared to ethoxylated analogues.
Conclusions:
- Zeolite-catalyzed size-selective acetalization offers an efficient and sustainable route to functional chemicals.
- This method simplifies the production of bio-based amphiphiles, such as surfactants.
- The developed bio-based surfactants show promising performance for practical applications, highlighting a potential shift towards renewable materials.
