Question

What is the name of the following reaction? ${PhCHO + (CH3CO)2O ->[Na(OAc)_2] PhCH=CHCO2H}$

• A. Oxymercuration demercuration reaction
• B. Cannizzaro reaction
• C. Knoevenagel?? reaction
• D. Perkin reaction

Answer 1

Answer: (D)

Perkin reaction

Answer 2

The name of the following reaction $PhCHO +\left( CH _{3} CO \right)_{2} O {->[{ Na ( OAc )_{2}}]} PhCH = CHCOOH$ is Perkin reaction. The product is cinnamic acid, an $\alpha, \beta$-unsaturated aromatic acid. It is obtained by the aldol condensation of benzaldehyde and acetic anhydride, in the presence of sodium acetate.