Hydrocarbons 2 Question 59
63. Complete the following reactions with appropriate structures of products/reagents :
$\mathrm{C}{6} \mathrm{H}{5} \mathrm{CH}=\mathrm{CH}{2} \xrightarrow{\mathrm{Br}{2}}[A] \xrightarrow[\text { (ii) } \mathrm{CH}{3} \mathrm{I}]{\text { (i) } \mathrm{NaNH}{2} \text { (3 equivalent) }}[B]$
$(1998,2 M)$
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Solution:
- $\mathrm{C}{6} \mathrm{H}{5}-\mathrm{CH}=\mathrm{CH}{2}+\mathrm{Br}{2} \longrightarrow \mathrm{C}{6} \mathrm{H}{5}-\underset{\mathrm{Br}}{\mathrm{CH}}-\stackrel{\stackrel{\mathrm{Br}}{\mathrm{Cr}}}{\mathrm{Cr}}$
$$ \underset{\mathrm{CH}{3} \mathrm{I}}{\mathrm{NaNH}{2}} \mathrm{C}{6} \mathrm{H}{5}-\underset{B}{\mathrm{C} \equiv \mathrm{C}}-\mathrm{CH}_{3} $$
