Question: Compounds A, B, and C are isomers with the formula C5H11Br. Their broadband proton-decoupled 13C NMR spectra are given in Fig. 9.32. Information from the

Compounds A, B, and C are isomers with the formula C5H11Br. Their broadband proton-decoupled 13C NMR spectra are given in Fig. 9.32. Information from the DEPT 13C NMR spectra is given near each peak. Give structures for A, B, and C.

CH3 A, C5H11Br CH2 CH2 CH TMS CDCl3 60 40 20 220 200 180 160 140 120 100 80 (ppm) CH3 CH2 CH3 TMS CDCl3 C 60 40 20 220 200 180 160140 20 100 80 oc (ppm) C, C5H1Br CH3 All others CH2 TMS CDCl3 220 200 180 160 140 120 100 80 60 40 20 &c (ppm)

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