Journal
CHEMSUSCHEM
Volume 12, Issue 10, Pages 2176-2180Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201900279
Keywords
bifunctional catalysis; biomimicry; biphasic catalysis; Pickering emulsions; tandem reactions
Funding
- NWO Funding Source: Medline
Ask authors/readers for more resources
Tandem catalysis combines multiple conversion steps, catalysts, and reagents in one reaction medium, offering the potential to reduce waste and time. In this study, Pickering emulsionsemulsions stabilized by solid particlesare used as easy-to-prepare and bioinspired, compartmentalized reaction media for tandem catalysis. Making use of simple and inexpensive acid and base catalysts, the strategy of compartmentalization of two noncompatible catalysts in both phases of the emulsion is demonstrated by using the deacetalization-Knoevenagel condensation reaction of benzaldehyde dimethyl acetal as a probe reaction. In contrast to simple biphasic systems, which do not allow for tandem catalysis and show instantaneous quenching of the acid and base catalysts, the Pickering emulsions show efficient antagonistic tandem catalysis and give the desired product in high yield, as a result of an increased interfacial area and suppressed mutual destruction of the acid and base catalysts.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available