Label the peaks state why they occur 979 200 90 40 35 30 25

9.79 2.00 90 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 00 PPM 8 013:10) 7516 402 d: 8192 1:358.9 FE COARCITYCUTEUE PEPW 10 1501 31.0 Fl:60.100 EX: cHetCI3IQUEUE.pp

Solution

Interpretation of 1H NMr spectrum

0.97 ppm (triplet, 6H) for 2CH3 next to CH (isopropyl group)

1.18 ppm (doublet, 2H) for CH2 next to CH

1.8 ppm (multiplet, 1H) for CH between CH3\'s and CH2

2.22 ppm (quartet, 2H) for CH2 next to CH3

3.82 ppm (doublet, 2H) for CH2 next to CH