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Short Paper | Special issue | Vol 103, No. 1, 2021, pp.494-501
Published online, 4th September, 2020
DOI: 10.3987/COM-20-S(K)25
Palladium on Carbon–Catalyzed Oxidative Transformation of Benzylic Ethers

Ryoya Takakura, Shoko Kuwata, Kouki Nakano, Naoki Yasukawa, Hironao Sajiki,* and Yoshinari Sawama*

*Laboratory of Organic Chmistry, Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi 501-1196, Japan

Abstract

Palladium on carbon (Pd/C)-catalyzed oxidative transformations of primary and secondary benzylic ethers in ethylene glycol as a solvent and reagent in an oxygen atmosphere produced the corresponding hydroxyethyl esters and cyclic ketals, respectively. Commercially-available and heterogeneous Pd/C was easily removed by filtration, and molecular oxygen was used as a clean oxidant.