Question

The five compounds below all have a molecular weight of 148 g/mol. Start by drawing in all implied hydrogens on the printed structures and then add up the chemical formula and molecular weight for each to make sure you have everything correct. The spectral data (EI-MS, IR, 1H NMR, and 13C NMR) for each compound are grouped together (1 compound per page). For 1H NMR, numerals underneath the spectrum represent integral values. OH**Compound A has spectral data 2, Compound B has spectral data 3, Compound C has spectral data 5, Compound D has spectral data 4, Compound E has spectral data 1.

**Looking at 1H NMR spectra for each compond, labelling the multiplicities (corresponding to CH2 groups only for question 8) and signals asking in question 9 on the graph.

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Answer #1

HO H H н он O. но 7.90 .51 1.51 O H H 098 7.40 H NMR 0.88 2.96 2.96 0.09 7,87 tripletsextet 7.40 Two methylene groups (CH2) a

6.82 5.32 он 1.83 8.92 4.95 H 1.88 aH 1.55 8.92 H 1.65 284 each proton on a.b and c are sextets 6.02 2.87 Three methylene gro

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