WBJEE · Chemistry · Hydrocarbons
The best method for the preparation of 2, 2-dimethylbutane is via the reaction of
- A \(\mathrm{Me}_{3} \mathrm{CBr}\) and \(\mathrm{MeCH}_{2}\) Br in Na/ether
- B \(\left(\mathrm{Me}_{3} \mathrm{C}\right)_{2} \mathrm{CuLi}\) and \(\mathrm{MeCH}_{2} \mathrm{Br}\)
- C \(\left(\mathrm{MeCH}_{2}\right)_{2} \mathrm{CuLi}\) and \(\mathrm{Me}_{3} \mathrm{CBr}\)
- D \(\mathrm{Me}_{3} \mathrm{CMgl}\) and \(\mathrm{MeCH}_{2}l\)
Answer & Solution
Correct Answer
(B) \(\left(\mathrm{Me}_{3} \mathrm{C}\right)_{2} \mathrm{CuLi}\) and \(\mathrm{MeCH}_{2} \mathrm{Br}\)
Step-by-step Solution
Detailed explanation
2,2 - dimethyl butane is prepared from Corey House alkane synthesis. \(\left(\mathrm{Me}_{3} \mathrm{C}\right)_{2} \mathrm{Cul}_{2} \mathrm{Li}+\mathrm{MeCH}_{2} \mathrm{Br} \stackrel{\mathrm{S}_{\mathrm{N}}{2}}{\longrightarrow}\)…
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