期刊
ADVANCED SYNTHESIS & CATALYSIS
卷 361, 期 24, 页码 5626-5633出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.201901260
关键词
cyclic voltammetry; chemical trial-and-error; electrochemistry; oxygen reduction reaction; persistent radical effect; screening method
资金
- Foundation of State Key Laboratory of Biobased Material and Green Papermaking [ZZ20190312]
- Qilu University of Technology (Shandong Academy of Sciences) [0412048811, 81110326]
- Shandong Provincial Natural Science Foundation [ZR2018BB017]
- National Natural Science Foundation of China [21801144, 81872744, 51602164]
- Youth Innovative Talents Recruitment and Cultivation Program of Shandong Higher Education
- Program for Scientific Research Innovation Team in Colleges and Universities of Shandong Province
Instead of screening reaction conditions by yield-based chemical trial-and-error, potential-based cyclic voltammetry was alternatively employed for optimization of electrochemical oxychlorination of alkenes. With this unconventional screening method, the catalyst system including catalysts, molar ratio of chloride sources and solvents were identified in a rational, time- and energy-efficient manner. The optimal catalytic system in combination with oxygen reduction reaction enabled broad substrate scopes for the desired transformation by taking advantages of persistent radical effect. UV-vis and CV titration experiments confirmed the in-situ formed catalytic species [CoCl5]. Moreover, cyclic voltammetry was applied to obtain mechanistic insights in our reaction system.
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