Benzalchloride to cinnamaldehyde

Explanation

Benzalchloride to cinnamaldehyde
`underset("Benzal chloride")(C_(6)H_(5)CHCl_(2))overset(2KOH(aq))rarrunderset(("unstable"))(C_(6)H_(5)CH(OH)_(2))overset(-H_(2)O)rarrunderset("Benzaldehyde")(C_(6)H_(5)CH)=Ooverset("Perkin's reaction")rarrunderset("Cinnamaldehyde")(C_(6)H_(5)CH=CHCHO)`