Which among the following is NOT allylic halide?

Which among the following is NOT allylic halide?
  1. $\mathrm{CH}_2=\mathrm{CH}-\mathrm{CH}_2-\mathrm{X}$
  2. $\mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_2-\mathrm{X}$
  3. $\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_2-\mathrm{X}$
  4. $\mathrm{CH}_3-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{X}$

Solution

The compound that is not an allylic halide is option D as the 'X' group ,or halide group is attached to the second carbon to the double bond. For an allylic halide, the halide group should be attached to the first carbonyl attached to the double bond.

Asked in: MHT CET 2024 (04 May Shift 2)

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