Aerobic oxidation of 9H-fluorenes to 9-fluorenones using mono-/multilayer graphene-supported alkaline catalyst

Xin Zhang; Xuan Ji; Ruifei Su; Brandon L. Weeks; Zhao Zhang; Songlu Deng

doi:10.1002/cplu.201300123

Aerobic oxidation of 9H-fluorenes to 9-fluorenones using mono-/multilayer graphene-supported alkaline catalyst

Xin Zhang, Xuan Ji, Ruifei Su, Brandon L. Weeks, Zhao Zhang, Songlu Deng

Chemical Engineering

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

The synthesis of 9-fluorenone derivatives has been achieved in high yield and with high purity by aerobic oxidation of 9H-fluorenes at room temperature in the presence of a graphene-supported KOH composite that acts as a catalyst in N,N-dimethylformamide. The new protocol involves very simple work-up procedures, and the solvent and the catalyst can be recycled and reused. A scaled-up preparative study employing this method was also conducted and showed its advantages of being both cost-effective and environmentally friendly, and has potential for application in industrial processes.

Original language	English
Pages (from-to)	703-711
Number of pages	9
Journal	ChemPlusChem
Volume	78
Issue number	7
DOIs	https://doi.org/10.1002/cplu.201300123
State	Published - Jul 2013

Keywords

9-fluorenones
aerobic oxidation
catalysis
graphene
synthetic methods

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abstract = "The synthesis of 9-fluorenone derivatives has been achieved in high yield and with high purity by aerobic oxidation of 9H-fluorenes at room temperature in the presence of a graphene-supported KOH composite that acts as a catalyst in N,N-dimethylformamide. The new protocol involves very simple work-up procedures, and the solvent and the catalyst can be recycled and reused. A scaled-up preparative study employing this method was also conducted and showed its advantages of being both cost-effective and environmentally friendly, and has potential for application in industrial processes.",

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AU - Weeks, Brandon L.

AU - Zhang, Zhao

AU - Deng, Songlu

PY - 2013/7

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AB - The synthesis of 9-fluorenone derivatives has been achieved in high yield and with high purity by aerobic oxidation of 9H-fluorenes at room temperature in the presence of a graphene-supported KOH composite that acts as a catalyst in N,N-dimethylformamide. The new protocol involves very simple work-up procedures, and the solvent and the catalyst can be recycled and reused. A scaled-up preparative study employing this method was also conducted and showed its advantages of being both cost-effective and environmentally friendly, and has potential for application in industrial processes.

KW - 9-fluorenones

KW - aerobic oxidation

KW - catalysis

KW - graphene

KW - synthetic methods

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Aerobic oxidation of 9H-fluorenes to 9-fluorenones using mono-/multilayer graphene-supported alkaline catalyst

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Keywords

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