Question

Which of the following can be used to prepare 3-bromopropene?

• A. $C{H}_{3}CH=C{H}_2+B{r}_2\underset{30{}^{\circ }\text{C}}{\overset{CC{l}_4}{\to }}$
• B. $C{H}_{3}CH=C{H}_2+\text{N-bromosuccinimide}\stackrel{CC{l}_4}{\to }$
• C. $HOC{H}_{2}C{H}_{2}C{H}_3+PB{r}_3\to$
• D. $BrC{H}_{2}C{H}_{2}C{H}_{2}Cl+NaI\stackrel{\text{Acetone}}{\to }$

Answer 1

The correct option is B $C{H}_{3}CH=C{H}_2+\text{N-bromosuccinimide}\stackrel{CC{l}_4}{\to }$


Propene on reaction with N-bromosuccinimide in $CC{l}_4$ produces 3-bromopropene. In this reaction, allylic-H-atom is replaced with ${}^{\prime }B{r}^{\prime }$ atom.