. Butanenitrile may be prepared by heating
A: propyl alcohol with KCN
B: butyl alcohol with KCN
C: butyl chloride with KCN
D: propyl chloride with KCN
- The hydroxyl group of alcohol cannot react with KCN in normal reaction conditions as OH group is a poor leaving group.
- So Butanenitrile can be prepared by heating propyl chloride with KCN.
CH2 CH3 CH2 C1 + KCNΔ→ CH3 Ch2 CH2 CN
- It is an example of SN2reaction.
The correct option is (D) propyl chloride with KCN.