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Favorskii Rearrangement; Wallach Degradation

Base-catalyzed rearrangement of α-haloketones to acids or esters. The rearrangement of α,α′-dibromocyclohexanones to 1-hydroxycyclopentanecarboxylic acids, followed by oxidation to the ketones is known as the Wallach degradation:

Favorskii Rearrangement; Wallach Degradation

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