Volume 17, Issue 1 1900162
FULL PAPER

trans-Stilbene epoxidation by He+O2 atmospheric pressure plasma: Epoxidation without oxidant waste stream

Han Xu

Han Xu

Wolfson School of Mechanical, Electrical, and Manufacturing Engineering, Loughborough University, Loughborough, UK

State Key Laboratory of Electrical Insulation and Power Equipment, Center for Plasma Biomedicine, Xi'an Jiaotong University, Xi'an, China

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Sui Wang

Sui Wang

Wolfson School of Mechanical, Electrical, and Manufacturing Engineering, Loughborough University, Loughborough, UK

State Key Laboratory of Electrical Insulation and Power Equipment, Center for Plasma Biomedicine, Xi'an Jiaotong University, Xi'an, China

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Muhammad Shaban

Muhammad Shaban

Wolfson School of Mechanical, Electrical, and Manufacturing Engineering, Loughborough University, Loughborough, UK

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Faraz Montazersadgh

Faraz Montazersadgh

Wolfson School of Mechanical, Electrical, and Manufacturing Engineering, Loughborough University, Loughborough, UK

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Anas Alkayal

Anas Alkayal

Department of Chemistry, Loughborough University, Loughborough, UK

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Dingxin Liu

Dingxin Liu

State Key Laboratory of Electrical Insulation and Power Equipment, Center for Plasma Biomedicine, Xi'an Jiaotong University, Xi'an, China

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Michael G. Kong

Michael G. Kong

State Key Laboratory of Electrical Insulation and Power Equipment, Center for Plasma Biomedicine, Xi'an Jiaotong University, Xi'an, China

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Benjamin R. Buckley

Corresponding Author

Benjamin R. Buckley

Department of Chemistry, Loughborough University, Loughborough, UK

Correspondence Benjamin R. Buckley, Department of Chemistry, Loughborough University, Loughborough, Leicestershire LE11 3TU, UK.

Email: [email protected]

Felipe Iza, Wolfson School of Mechanical, Electrical, and Manufacturing Engineering, Loughborough University, Loughborough, Leicestershire LE11 3TU, UK.

Email: [email protected]

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Felipe Iza

Corresponding Author

Felipe Iza

Wolfson School of Mechanical, Electrical, and Manufacturing Engineering, Loughborough University, Loughborough, UK

Correspondence Benjamin R. Buckley, Department of Chemistry, Loughborough University, Loughborough, Leicestershire LE11 3TU, UK.

Email: [email protected]

Felipe Iza, Wolfson School of Mechanical, Electrical, and Manufacturing Engineering, Loughborough University, Loughborough, Leicestershire LE11 3TU, UK.

Email: [email protected]

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First published: 02 October 2019
Citations: 11

Abstract

Plasmas interacting with organic liquids can lead to novel synthetic processes that are not feasible with conventional vacuum systems due to vapor pressure limitations. Of particular interest are processes that eliminate the generation of waste streams. Here, we show that He+O2 plasma can drive the epoxidation of alkenes in solution, in a process that generates epoxides without oxidant waste streams, runs at room temperature and atmospheric pressure, and requires no catalyst. The reactions between different reactive oxygen species generated in the plasma and the target alkene, trans-stilbene in this study, have been identified and optimization of the plasma conditions within the constraints of the current experimental setup has led to yields of ~70%, which are of preparative interest.

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