Question

Which of the following reactions is/are not correct to get cinnamic acid?

• A. $C_6{H}_{5}CHO\underset{{\left({CH}_{3}CO\right)}_{2}O/C{H}_{3}COONa}{\overset{}{\to }}$
• B. $C_6{H}_{5}CHO\underset{2)H_3{O}^{+},\Delta }{\overset{1\left)C{H}_2\right(COO{C}_2{H}_2{)}_2,pyridine}{\to }}$
• C. $C_6{H}_{5}CHO\stackrel{C{H}_{3}CHO/O{H}^{-}}{\to }$
• D. $C_6{H}_{5}CHO\underset{2)H_{2}O/H^{+}/\Delta }{\overset{1)BrC{H}_{2}COO{C}_2{H}_3/ZnI\Delta }{\to }}$

Answer 1

The correct option is A $C_6{H}_{5}CHO\underset{{\left({CH}_{3}CO\right)}_{2}O/C{H}_{3}COONa}{\overset{}{\to }}$

The correct option is $A$.

The reaction of $C_6{H}_{5}CHO$and $(C{H}_{3}CO{)}_{2}O/C{H}_{3}COONa$ does not give cinnamic acid