The Reactions of Aldehydes and Ketones with a Peroxyacid

If the two alkyl substituents attached to the carbonyl group of the ketone are different, then on what side of the carbonyl carbon is the oxygen inserted For example, does the oxidation of cyclohexyl methyl ketone form methyl cyclohexanecarboxylate or cyclohexyl acetate  

To answer this question, we need to look at the mechanism of the reaction. 

Studies of the migration tendencies of different groups have established the following order relative migration tendencies 

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