What is the name of the following reaction? $\mathrm{PhCHO}+\left(\mathrm{CH}_3 \mathrm{CO}\right)_2…
What is the name of the following reaction?
$\mathrm{PhCHO}+\left(\mathrm{CH}_3 \mathrm{CO}\right)_2 \mathrm{O} \stackrel{\mathrm{Na}(\mathrm{OAc})_2}{\longrightarrow} \underset{\mathrm{PhCH}}{\longrightarrow}=\mathrm{CHCO}_2 \mathrm{H}$
Oxymercuration demercuration reaction
Cannizzaro reaction
Knoevenagel's reaction
Perkin reaction
Solution
The name of the following reaction \(\mathrm{PhCHO}+\left(\mathrm{CH}_3 \mathrm{CO}\right)_2 \mathrm{O} \xrightarrow{\mathrm{Na}(\mathrm{OAc})_2} \mathrm{PhCH}=\mathrm{CHCOOH}\) 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.