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Reaction of butanone with methylmagnesiu...

Reaction of butanone with methylmagnesium bromide following by hydrolysis gives

A

2-methyl-2-butanol

B

2-butanol

C

3-methyl-2-butanol

D

2, 2-dimethyl-1-butanol

Text Solution

Verified by Experts

The correct Answer is:
A
The reaction of butanone with methylmagnesium bromide takes place in two steps. The first step involes the nucleophilic attack of the Grignard reagent to the carbonyl group to form an adduct and the second step involes hydrolysis of adduct preferably with dil. HCl or `H_(2)SO_(4)` to for tertiary alcohol.
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Knowledge Check

  • Sucrose on hydrolysis gives

    A
    glucose + glucose
    B
    glucose +galactose
    C
    glucose + fructose
    D
    glucose +lactose

  • Reaction of RMgX with followed by hydrolysis gives

    A
    RCHOHR
    B
    `RCHOHCH_(3)`
    C
    `R_(2)CHCH_(2)OH`
    D
    `RCH_(2)CH_(2)OH`

  • Reaction of propene with dibrorane followed by alkaline hydrolysis in fhe presence of hydrogen peroxides gives 1 - propanol 2 - propanol 1,2 -dihydroxypropane n-propane

    A
    1 - propanol
    B
    2 - propanol
    C
    1,2 -dihydroxypropane
    D
    n-propane