SBA-15-functionalized palladium complex partially confined with ionic liquid: an efficient and reusable catalyst system for aqueous-phase Suzuki reaction

Organic & Biomolecular Chemistry
Babak Karimi, Asghar Zamani

Abstract

A novel SBA-15 functionalized palladium complex partially confined with 1-butyl-3-methylimidazolium hexafluorophosphate ionic liquid (Material 4) was found to be a very efficient and reusable catalyst in the Suzuki-Miyaura coupling reaction of aryl halides including aryl chlorides and heteroaryl halides with different aryl boronic acids under aqueous conditions without any organic co-solvents. Our studies showed that 4 is a more efficient catalyst in comparison with the catalyst not containing IL or catalyst with a higher ratio of IL. The materials were characterized by N(2)-sorption analysis, TGA and transmission electron microscopy before and after catalysis. While our studies showed that the catalyst can be successfully recycled and reused in at least 4 reaction runs, in contrast, several poisoning experiments and kinetic studies provide the notion that homogeneous (dissolved) species are responsible for the observed catalysis.

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Citations

Dec 30, 2016·Chemical Reviews·Shiguo ZhangYouquan Deng
Sep 27, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Fu DingKangjun Wang
Apr 16, 2020·Combinatorial Chemistry & High Throughput Screening·Abdollah AlizadehDaryoush Zareyee

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