Given here are 1 H-NMR and 13C-NMR spectral data for two
Chapter 21, Problem 21.31(choose chapter or problem)
Given here are 1 H-NMR and 13C-NMR spectral data for two compounds. Each shows strong, sharp absorption between 1700 and 1720 cm1, and strong, broad absorption over the region 25003000 cm1. Propose a structural formula for each compound. (a) C10H12O3 (b) C10H10O2 1 H-NMR 13C- NMR 2.49 (t, 2H) 173.89 2.80 (t, 2H) 157.57 3.72 (s, 3H) 132.62 6.78 (d, 2H) 128.99 7.11 (d, 2H) 113.55 12.4 (s, 1H) 54.84 35.75 29.20 1 H-NMR 13C-NMR 2.34 (s, 3H) 167.82 6.38 (d, 1H) 143.82 7.18 (d, 1H) 139.96 7.44 (d, 2H) 131.45 7.56 (d, 2H) 129.37 12.0 (s, 1H) 127.83 111.89 21.13
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