Abstract
| - Aryl allylic alcohols are converted to halogenated unsaturatedketones or allylic halides using excess Moffatt−Swernreagent. Electron-poor aromatic rings favor formation of thehalogenated ketone, while electron-donating substituents inthe ortho or para positions favor formation of the allylichalide. The oxidation/halogenation reaction performs wellwith both oxalyl chloride and oxalyl bromide, providingaccess to the corresponding chlorides or bromides, respectively.
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