Question

`PhCHO +(CH_(3)CO)_(2)O overset((1)CH_(3)COONa)underset((2)"hydrolysis", Delta)toA overset(HBr)toB B`
The product B is
A. `PhCH=CHCH_(2)Br`
B. `Phunderset(Br)underset(|)(C)H-CH_(2)-COOH`
C. `PhCH_(2)CH(Br)COOH`
D. `PhCH=CH-COBr`

Answer 1

Correct Answer - B
Perkin reaction
`underset(" (A) ")(Ph-CH=CH-COOH) overset(HBr)to Ph-underset(Br)underset(|)(C)H-CH_(2)-COOH`