Carboxylic Acids and their Derivatives - Result Question 61
####47. In the following identify the compounds/reaction conditions represented by the alphabets $A, B$, and $C$ :
$$ \begin{aligned} & C _6 H _5 COOH \xrightarrow{PCl _5} A \xrightarrow{NH _3} \ & B \xrightarrow{P _2 O _5} C _6 H _5 CN \xrightarrow{H _2 / Ni} C \end{aligned} $$
$(1991,2 M)$
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Solution:
- $C _6 H _5 COOH \xrightarrow{PCl _5} C _6 H _5 COCl \xrightarrow{NH _3} C _6 H _5-\underset{B}{\stackrel{|}{C}-NH _2}$
$$ \xrightarrow{P _2 O _5} C _6 H _5-CN \xrightarrow{H _2 / Ni} C _6 H _5 CH _2 NH _2 $$
