期刊
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
卷 2022, 期 26, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.202200485
关键词
Battery material; Catalysis; Hydrogen peroxide; Oxidation; TEMPO
资金
- Thuringer Aufbaubank (TAB) [2019 FGR 0080]
- Europen Social Fund (ESF)
- Projekt DEAL
This study thoroughly investigates different oxidation processes for one-step synthesis of N-oxyl radicals. The determining parameter for reaction yield is determined by redox titration and electron spin resonance spectroscopy. The most promising procedures have been applied to polymeric materials to evaluate the feasibility of catalysts for more complex substrates.
A vast variety of oxidation procedures is known to obtain 2,2,6,6-tetramethylpiperidinyl-4-oxyl (TEMPO) moieties from its piperidinyl precursor. However, up to now no comprehensive study has been performed concerning the performance and feasibility for lab-scale synthesis. With the focus on the ease of synthesis, occurring impurities, the reaction yield and the degree of oxidation (DoO), this study represents a thorough investigation of different oxidation processes yielding N-oxyl radicals in a one-step procedure. The resulting materials were investigated by redox titration and electron spin resonance spectroscopy to determine the DoO, which is the determining parameter for the yield of this oxidation reaction. The most promising procedures have been transferred to a polymeric material to evaluate the feasibility of the catalysts for more complex substrates.
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