A mild and chemoselective oxidation of the α‐alcohol in β‐O‐4′‐ethanoaryl and β‐O‐4′‐glycerolaryl ethers has been developed. The benzylic alcohols were selectively dehydrogenated to the corresponding ketones in 60–93 % yield. A one‐pot selective route to aryl ethyl ketones was performed. The catalytic system comprises recyclable heterogeneous palladium, mild reaction conditions, green solvents, and oxygen in air as oxidant. Catalytic amounts of a coordinating polyol were found pivotal for an efficient aerobic oxidation.
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Dawange et al. (2014) studied this question.
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