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

被引：41
作者：
Kim, Seongsoo [1 ]
Cho, Hong-Jun [2 ]
Shin, Dong-Sik [3 ]
Lee, Sang-Myung [1 ]
机构：
[1] Kangwon Natl Univ, Dept Chem Engn, Chuncheon Si 24341, Gangwon Do, South Korea
[2] Seoul Natl Univ, Sch Chem & Biol Engn, Seoul 08826, South Korea
[3] Sookmyung Womens Univ, Dept Chem & Biol Engn, Seoul 04310, South Korea
来源：
TETRAHEDRON LETTERS | 2017年 / 58卷 / 25期
基金：
新加坡国家研究基金会;
关键词：
Heterogeneous catalyst; Graphene oxide; N-Heterocyclic carbene; Palladium; C-C cross coupling; SUZUKI-MIYAURA; PALLADIUM COMPLEX; GRAPHITE OXIDE; MIZOROKI-HECK; SONOGASHIRA; NANOPARTICLES; CHLORIDES; EFFICIENT;
D O I：
10.1016/j.tetlet.2017.05.017
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
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.
引用
收藏
页码：2421 / 2425
页数：5
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