期刊
CHEMICAL SCIENCE
卷 11, 期 9, 页码 2472-2478出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9sc05101e
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资金
- EPSRC [EP/P00119X/1]
- Hewlett-Packard Company
- NPL London
- EPSRC [EP/P00119X/1] Funding Source: UKRI
A new and diverse family of pyrene derivatives was synthesised via palladium-catalysed C-H ortho-arylation of pyrene-1-carboxylic acid. The strategy affords easy access to a broad scope of 2-substituted and 1,2-disubstituted pyrenes. The C1-substituent can be easily transformed into carboxylic acid, iodide, alkynyl, aryl or alkyl functionalities. This approach gives access to arylated pyrene ammonium salts, which outperformed their non-arylated parent compound during aqueous Liquid Phase Exfoliation (LPE) of graphite and compare favourably to state-of-the-art sodium pyrene-1-sulfonate PS1. This allowed the production of concentrated and stable suspensions of graphene flakes in water.
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