Organic Chemistry
Organic Chemistry
11th Edition
ISBN: 9781118133576
Author: T. W. Graham Solomons, Craig Fryhle
Publisher: Wiley, John & Sons, Incorporated
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Chapter 9, Problem 2LGP

Two compounds with the molecular formula C 5 H 10 O have the following 1 H and 13 C NMR data. Both compounds have a strong IR absorption band in the 1710-1740 cm−-1 region. Elucidate the structure of these two compounds and interpret the spectra. Make a sketch of each NMR spectrum.

(a)

1 H NMR: δ 2 .55  ( septet, 1H ) , 2 .10  ( s, 3H ) , 1 .05  ( d, 6H )   13 C NMR: δ 212 .6,  41 .5, 27 .2, 17 .8

(b)

1 H NMR: δ 2 .38  ( t, 2H ) , 2 .10  ( s, 3H ) , 1 .57  ( sextet, 2H ) 0 .88  ( t, 3H )   13 C NMR: δ 209 .0, 45 .5, 29 .5, 17 .0, 13 .2

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Chapter 9 Solutions

Organic Chemistry

Ch. 9 - PRACTICE PROBLEM 9.10 What is the dihedral angle...Ch. 9 - PRACTICE PROBLEM 9.11 Draw the most stable chair...Ch. 9 - Prob. 13PPCh. 9 - Prob. 14PPCh. 9 - PRACTICE PROBLEM 9.13 How many signals would you...Ch. 9 - Prob. 16PPCh. 9 - Prob. 17PPCh. 9 - Prob. 18PPCh. 9 - Prob. 19PPCh. 9 - PRACTICE PROBLEM 9.18 What are the expected ratios...Ch. 9 - Given the mass spectrum in Figure 9.44 and the...Ch. 9 - Prob. 22PCh. 9 - 9.23 How many 13C NMR signals would you predict...Ch. 9 - Prob. 24PCh. 9 - 9.25 Propose structures for the compounds G and H...Ch. 9 - Prob. 26PCh. 9 - Prob. 27PCh. 9 - Compound Q has the molecular formula C7H8. The...Ch. 9 - 9.26 Explain in detail how you would distinguish...Ch. 9 - Prob. 30PCh. 9 - A compound with molecular formula C4H8O has a...Ch. 9 - In the mass spectrum of 2, 6-dimethyl-4-heptanol...Ch. 9 - Prob. 33PCh. 9 - What are the masses and structures of the ions...Ch. 9 - Prob. 35PCh. 9 - Ethyl bromide and methoxybenzene (shown below)...Ch. 9 - 9.34 The homologous series of primary amines, ,...Ch. 9 - Propose a structure that is consistent with each...Ch. 9 - 9.39 Propose structures for compounds E and F....Ch. 9 - Regarding compound J, C2HxCly, use the 1H NMR and...Ch. 9 - 9.38 When dissolved in , a compound (K) with the...Ch. 9 - Compound T (C5H8O) has a strong IR absorption band...Ch. 9 - Deduce the structure of the compound that gives...Ch. 9 - 9.45 Deduce the structure of the compound that...Ch. 9 - The 1H NMR spectrum of a solution of 1,...Ch. 9 - Acetic acid has a mass spectrum showing a...Ch. 9 - The 1H NMR peak for the hydroxyl proton of...Ch. 9 - The 1H NMR study of DMF (N, N-dimethylformamide)...Ch. 9 - 9.48 The mass spectra of many benzene derivatives...Ch. 9 - Prob. 52PCh. 9 - 1. Given the following information, elucidate the...Ch. 9 - Two compounds with the molecular formula C5H10O...Ch. 9 - Propose a structure that is consistent with each...Ch. 9 - 9.2 How many 1H NMR signals would the following...Ch. 9 - 9.3. How many 1H NMR signals would...Ch. 9 - 9.4 Which of these C6H14 isomers has the greatest...Ch. 9 - 9.5 How many 13C NMR signals would be given by the...Ch. 9 - Prob. 6QCh. 9 - 9.7 What is the structure of a compound C5H12...

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