4.8 Article

Manganese/Copper Co-catalyzed Electrochemical Wacker-Tsuji-Type Oxidation of Aryl-Substituted Alkenes

Journal

ORGANIC LETTERS
Volume 22, Issue 18, Pages 7338-7342

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.0c02670

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Funding

  1. CERCA Programme/Generalitat de Catalunya
  2. MINECO/FEDER [CTQ2015-69136R, PID2019-1092336RB-I00]
  3. AGAUR/Generalitat de Catalunya [2017 SGR 1139]
  4. MINECO [BES-2016-078937]

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A manganese/copper co-catalyzed electrochemical WackerTsuji-type oxidation of aryl-substituted alkenes has been developed. The process involves the use of 5 mol % MnBr2 and 7.5 mol % CuCl2, in 4:1 acetonitrile/water in an undivided cell at 60 degrees C, with 2.8 V constant applied potential. a-Aryl ketones are formed in moderate to excellent yields, with the advantages of avoidance of palladium as a catalyst and any external chemical oxidant in an easily operated, cost-effective procedure.

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