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Recyclable and eco-friendly Pd-complexed graphene oxide/N-heterocyclic carbene catalyst for various coupling reactions in aqueous phase

Authors
Kim, SeongsooCho, Hong-JunShin, Dong-SikLee, Sang-Myung
Issue Date
Jun-2017
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Keywords
Heterogeneous catalyst; Graphene oxide; N-Heterocyclic carbene; Palladium; C-C cross coupling
Citation
TETRAHEDRON LETTERS, v.58, no.25, pp 2421 - 2425
Pages
5
Journal Title
TETRAHEDRON LETTERS
Volume
58
Number
25
Start Page
2421
End Page
2425
URI
https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/8296
DOI
10.1016/j.tetlet.2017.05.017
ISSN
0040-4039
Abstract
In this study, we report recyclable Pd-complexed graphene oxide (GO) catalysts with a bulky N-heterocyclic carbene (NHC) ligand (GO/NHC-Pd) for various cross-coupling reactions in the aqueous phase. To prepare GO/NHC-Pd, the NHC precursor and a trimethoxy-silane linker were combined on the GO surface via condensation, followed by the Pd chelation over GO/NHC. The GO-based catalysts were applied to three types of C-C cross-coupling reactions including Suzuki, Heck and Sonogashira reactions in the aqueous phase, to evaluate their catalytic performance. The reusability of the catalysts was tested by performing five consequent cross-coupling reactions. (C) 2017 Elsevier Ltd. All rights reserved.
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공과대학 (화공생명공학부)
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