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Synlett 2011(12): 1779-1783
DOI: 10.1055/s-0030-1260810
DOI: 10.1055/s-0030-1260810
LETTER
© Georg Thieme Verlag
Stuttgart ˙ New York
Enhancing Activity of Suzuki Reactions in Water by Using Guanidinium Ionic Liquid Stabilized Palladium Micelle Catalyst
Weitere Informationen
Received
29 March 2011
Publikationsdatum:
29. Juni 2011 (online)
Publikationsverlauf
Publikationsdatum:
29. Juni 2011 (online)
![](https://www.thieme-connect.de/media/synlett/201112/lookinside/thumbnails/10.1055-s-0030-1260810-1.jpg)
Abstract
A facile surfactant-based hexaalkylguanidinium ionic liquid (GIL)-mediated Suzuki coupling procedure has been developed using ligand-free Pd catalysts. The procedure involving the use of nanometric palladium micelles, is operationally simple and remarkably efficient for the coupling of aryl bromides or aryl chlorides with boronic acids in water. Furthermore, the GIL/H2O catalytic system was more stable than the tetrabutylammonium bromide/H2O catalytic system under basic conditions, enabling the recycling of the nano-Pd micelle catalysts.
Key words
guanidinium ionic liquids - ligand-free - micelle - palladium nanoparticles - Suzuki coupling
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