Question

Match the example given in Column I with the name of the reaction in Column II.

	Column I (Example)		Column II (Reaction)
A		(i)	Friedel Crafts acylation
B		(ii)	HVZ reaction
C		(iii)	Aldol Condensation
D		(iv)	Cannizaro’s reaction
E		(v)	Rosenmund’s reduction
F		(vi)	Stephen’s reaction

Answer 1

Part (A)

The Rosenmund reaction is a hydrogenation process where molecular hydrogen reacts with the acyl chloride in the presence of a catalyst – palladium on barium sulphate.

A

(v)

Rosenmund’s reaction

Part (B)

Cannizzaro reaction involves the base−induced disproportionation of two molecules of a non−enolizable aldehyde to yield a sodium carboxylate and a primary alcohol.

B

(vi)

Cannizzaro’s reaction

Part (C)

The Friedel−Crafts acylation reaction involves the addition of an acyl group to an aromatic ring. When an aromatic ring is treated with an acid chloride in presence of anhydrous $AlC{l}_3$, then corresponding ketone is formed.

C

(i)

Friedel−Crafts acylation

Part (D)

Hell-Volhard-Zelinsky reaction is a type of halogenation reaction in which halogenation of carboxylic acids occur at the alpha carbon.

D

(ii)

HVZ reaction

Part (E)

Nitriles are reduced to corresponding imine with stannous chloride in the presence of hydrochloric acid, which on hydrolysis gives corresponding aldehyde.

E

(vi)

Stephen’s reduction

Part (F)

Aldol Condensation can be defined as an organic reaction in which enolate ion reacts with a carbonyl compound to form $\beta -$hydroxy ketone or $\beta -$hydroxy aldehyde, followed by dehydration to give a conjugated enone.

F

(iii)

Aldol Condensation

Correct Match:

	Column I (Example)		Column II (Reaction)
A		(v)	Rosenmund’s reduction
B		(vi)	Cannizzaro’s reaction
C		(i)	Friedel−Crafts acylation
D		(ii)	HVZ reaction
E		(vi)	Stephen’s reduction