Chapter 14, Problem 46P

Identify the ${\text{C}}_3{\text{H}}_5\text{Br}$ isomers on the basis of the following information:

(a) Isomer A has the $\text{H}\text{ NMR}$ spectrum shown in Figure $\text{14}\text{.49}$.

(b) Isomer B has three peaks in its $\text{C}\text{ NMR}$ spectrum: $\text{δ 32}\text{.6 }\left({\text{CH}}_2\right)$; $\text{118}\text{.8 }\left({\text{CH}}_2\right)$; and $\text{134}\text{.2 }\left(\text{CH}\right)$.

(c) Isomer C has two peaks in its $\text{C}\text{ NMR}$ spectrum: $\text{δ 12}\text{.0}\left({\text{CH}}_2\right)$ and $\text{16}\text{.8 }\left(\text{CH}\right)$. The peak at lower field is only half as intense as the one at higher field.