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Which of the following reactions is not ...

Which of the following reactions is not feasible?

A

`(CH_(3)CH_(2))_(2)CuLi+CH_(3)CH_(2)C(CH_(3))_(2)Brrarr`

B

`[(CH_(3))_(3)C]_(2)CuLi+CH_(3)CH_(2)CH_(2)Brrarr`

C

`[CH_(3)CH_(2)C(CH_(3))_(2)]_(2)CuLi+CH_(3)CH_(2)Brrarr`

D

`[(CH_(3))_(2)CH]_(2)CuLi+(CH_(3))_(2)CHCH_(2)Brrarr`

Text Solution

Verified by Experts

The correct Answer is:
A
Not feasible because the alkyl halide which reacts with lithium dialkycuprate must be methyl halide, primary halidie `(RCH_(2)X)` or secondary `(R_(2)CHX)` halide. Halide in the first reaction is a tertiary halide.
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