MCQ
Product of this Hoffmann bromamide reaction is
- A$\begin{matrix}
O\,\, \\
||\,\, \\
Ph-C-C{{H}_{3}} \\
\end{matrix}$ - ✓$Ph-CHO$
- C
- D$Ph-CH_2 -NH_2$
✓
Answer
Correct option: B.
$Ph-CHO$
b
$(b)$ $\underset{(Hoffmann\,bromamide\,reaction)}{\mathop{\begin{matrix}
OH\,\,\,\,\,\,\,\,O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
|\,\,\,\,\,\,\,\,\,\,\,\,\,\,||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
Ph-CH-C-N{{H}_{2}}\xrightarrow[KOH]{B{{r}_{2}}} \\
\end{matrix}}}\,\underset{(unstable)}{\mathop{\begin{matrix}
OH\,\,\,\,\,\,\,\,\,\, \\
|\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
Ph-CH-N{{H}_{2}}\to \\
\end{matrix}}}\,\begin{matrix}
O \\
|| \\
Ph-C-H \\
\end{matrix}$
$(b)$ $\underset{(Hoffmann\,bromamide\,reaction)}{\mathop{\begin{matrix}
OH\,\,\,\,\,\,\,\,O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
|\,\,\,\,\,\,\,\,\,\,\,\,\,\,||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
Ph-CH-C-N{{H}_{2}}\xrightarrow[KOH]{B{{r}_{2}}} \\
\end{matrix}}}\,\underset{(unstable)}{\mathop{\begin{matrix}
OH\,\,\,\,\,\,\,\,\,\, \\
|\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
Ph-CH-N{{H}_{2}}\to \\
\end{matrix}}}\,\begin{matrix}
O \\
|| \\
Ph-C-H \\
\end{matrix}$
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