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JEE Main levelSingle correct optionDifficulty 2 of 3ro207

3-Methylbutan-2-one, $(CH X_{3}) X_{2} CH - CO - CH X_{3}$ , is oxidised with $CF X_{3} CO X_{3} H$ . Take the migratory aptitude order secondary alkyl $>$ methyl. The major product is

Apropan-2-yl ethanoate (isopropyl acetate)
Bmethyl 2-methylpropanoate
C2-methylpropanoic acid
D3-methylbutan-2-ol

Answer: A

The isopropyl group is secondary and migrates in preference to methyl. Oxygen is inserted between the carbonyl carbon and the isopropyl carbon, giving

CH X_{3} - CO - O - CH (CH X_{3}) X_{2}

, propan-2-yl ethanoate.

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