Which of the following is not an example of allylic halide?
Which of the following is not an example of allylic halide?
4 -chlorobut-1-ene
1-chlorobut-2-ene
3-chloro-2-methyl but-1-ene
4 -chloropent-2-ene
Solution
the halogen group is attached to a $\mathrm{sp}^3$ hybridised carbon atom next to the carbon which is already in double bond with another carbon atom.
Example: $\mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_2-\mathrm{Cl}$ Allylic halide