Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 59, Issue 33, Pages 13962-13967Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202005765
Keywords
deuteration; D2O; electrochemistry; graphite felt; oxygen evolution
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Funding
- National Science Foundation of China [21572099]
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology (Zhejiang University of Technology, Hangzhou) [310032]
- QingLan Project of Jiangsu Education Department
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We report a method for the electrochemical deuteration of alpha,beta-unsaturated carbonyl compounds under catalyst- and external-reductant-free conditions, with deuteration rates as high as 99 % and yields up to 91 % in 2 h. The use of graphite felt for both the cathode and the anode was key to ensuring chemoselectivity and high deuterium incorporation under neutral conditions without the need for an external reductant. This method has a number of advantages over previously reported deuteration reactions that use stoichiometric metallic reductants. Mechanistic experiments showed that O-2 evolution at the anode not only eliminates the need for an external reductant but also regulates the pH of the reaction mixture, keeping it approximately neutral.
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