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trans ‐Stilbene epoxidation by He+O 2 atmospheric pressure plasma: Epoxidation without oxidant waste stream
Author(s) -
Xu Han,
Wang Sui,
Shaban Muhammad,
Montazersadgh Faraz,
Alkayal Anas,
Liu Dingxin,
Kong Michael G.,
Buckley Benjamin R.,
Iza Felipe
Publication year - 2020
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.201900162
Subject(s) - plasma , atmospheric pressure , atmospheric pressure plasma , alkene , waste stream , catalysis , chemistry , oxygen , photochemistry , chemical engineering , materials science , analytical chemistry (journal) , organic chemistry , waste management , meteorology , quantum mechanics , engineering , physics
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+O 2 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.