5 - Methyl - 2 -hexanone can be synthesised from acetoacetic ester and RX. Which of the following RX is used?

1. $\left(\mathrm{CH}_{3}ight)_{2} \mathrm{CHBr}$
2. $\left(\mathrm{CH}_{3}ight)_{2} \mathrm{CHCH}_{2} \mathrm{Br}$
3. $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CHBrCH}_{3}$
4. $\left(\mathrm{CH}_{3}ight)_{2} \mathrm{CHCH}_{2} \mathrm{CH}_{2} \mathrm{Br}$

Solution

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Asked in: JEE-TOPICTESTS-CHEMISTRY

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