Question

If an amide is treated with $P_2{O}_5$ the likely product is an

• A. acid
• B. alkyl cyanide
• C. amine
• D. acid anhydride

Answer 1

Answer: (B)

: $R-\stackrel{\begin{array}{c}O\\ ||\end{array}}{C}-N{H}_2\underset{\Delta }{\overset{P_2{O}_5}{\to }}R-C\equiv N+H_{2}O.$