期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 57, 期 2, 页码 422-426出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201710659
关键词
electrosynthesis; polyelectrolytes; redox mediators; TEMPO; ultrafiltration
资金
- Liebig Fellowship (Fonds der Chemischen Industrie)
- German Federal Ministry of Education and Research (BMBF) [031A123]
Although organic electrosynthesis is generally considered to be a green method, the necessity for excess amounts of supporting electrolyte constitutes a severe drawback. Furthermore, the employment of redox mediators results in an additional separation problem. In this context, we have explored the applicability of soluble polyelectrolytes and polymediators with the TEMPO-mediated transformation of alcohols into carbonyl compounds as a test reaction. Catalyst benchmarking based on cyclic voltammetry studies indicated that the redox-active polymer can compete with molecularly defined TEMPO species. Alcohol oxidation was also highly efficient on a preparative scale, and our polymer-based approach allowed for the separation of both mediator and supporting electrolyte in a single membrane filtration step. Moreover, we have shown that both components can be reused multiple times.
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