JEE Main Chemistry question
Which compound on reaction with ethylmagnesium bromide and water will form 2-methyl-2-butanol?
Answer: (A)
Solution
2-Methyl-2-butanol, (CH_3)_2C(OH)-CH_2CH_3, is a tertiary alcohol formed when a Grignard reagent adds to a ketone. Addition of to acetone, , places the new ethyl group on the carbonyl carbon, giving exactly this tertiary alcohol after aqueous workup: $=O + →
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