Question: Five proton NMR spectra are given here, together with molecular formulas. In each case, propose a structure that is consistent with the spectrum. (a) C4Hg02

Five proton NMR spectra are given here, together with molecular formulas. In each case, propose a structure that is consistent with the spectrum.

(a) C4Hg02 Offset: 24 ppm 0 4 10 (ppm) 50Hz (b) CgHI0C 306 295 2.80 27 10 6 4 0 (ppm) (c) CHg02 0 4 6 10 81ppm) (d) C4HgO 0 4 10 8 (ppm) OHz 50Hz Hz 50Hz (e) CH1O 0 0.95 086 180 l.78 1.6 1.5 1.46 10 4. (ppm)

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a The formula C 4 H 8 O 2 has one element of unsaturation The 1H singlet at 121 indicates a carboxyl... View full answer

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