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26.1.1.3.1 Method 1: Oxidation of Ethers

DOI: 10.1055/sos-SD-026-00003

von Angerer, S.Science of Synthesis, (200526108.

Alkyl and benzyl ethers of secondary allyl alcohols can be oxidized with pyridinium chlorochromate to give the corresponding enones in good yields.[‌421‌] In the case of alkoxy groups, the presence of the allylic C=C bond is a prerequisitive for the reaction. A typical example is the conversion of 3-methoxy-1,5,5-trimethylcyclohexene into 3,5,5-trimethylcyclohex-2-en-1-one (99) (Scheme 109). This oxidation reaction can be extended to saturated alcohols if they are protected by a benzyl group.[‌421‌] When benzyl ethers of secondary aliphatic or alicyclic alcohols are treated with Jones reagent, mixtures of the corresponding ketones and benzoates in variable ratios are obtained.[‌422‌]

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Meeeeeeeeeeee (888); Meeeeee Meeeeeeee:[‌888‌]

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Meeeeeeee 8,8-Meeeeee-8M-eeeee-8-eeee 888; Meeeeee Meeeeeeee:[‌888‌]

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