Question

Which one of the following is not an allylic halide?

• A. $4$-Bromopent-$2$-ene
• B. $3$-Bromo-$2$-methylbut-$1$-ene
• C. $1$-Bromobut-$2$-ene
• D. $4$-Bromobut-$1$-ene
• E. $3$-Bromo-$2$-methylpropene

Answer 1

Answer: (D)

An allylic halide is an alkyl halide in whose molecules there are one or more halogen atoms are present at allylic carbon. (Allylic carbon is a carbon atom bonded a carbon atom that in turn is doubly bonded to another carbon atom).