Organic Chemistry (9th Edition)
Organic Chemistry (9th Edition)
9th Edition
ISBN: 9780321971371
Author: Leroy G. Wade, Jan W. Simek
Publisher: PEARSON
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Chapter 19, Problem 19.56SP
Interpretation Introduction

Interpretation: The structures and appropriate spectra for each structure are to be proposed. The cleavage which is responsible for the base peak at m/z 44 in the mass spectrum of A and the prominent peak at m/z 58 in the mass spectrum of B is to be described.

Concept introduction: NMR spectroscopy is a technique used to determine a unique structure of the compounds. It identifies the carbon-hydrogen bonding of an organic compound. A hydrogen atom is called as a proton in the NMR spectroscopy. IR spectroscopy is used to identify the functional groups present in the given compounds.

To determine: The structures and appropriate spectra for each structure and the cleavage which is responsible for the base peak at m/z 44 in the mass spectrum of A and the prominent peak at m/z 58 in the mass spectrum of B.

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How could 1H NMR spectroscopy be used to distinguish among isomers A, B, and C?
Compound X (molecular formula C10H120) was treated with NH2NH2, ¯OH to yield compound Y (molecular formula C10H14). Match the 1H NMR spectra of X and Y to the corresponding structures of X and Y. Compound NH2NH2 Compound 'H NMR of X 6 H OH Y 1 H 5H 8. 6. 4 ppm or H NMR of Y 6 H 2H 5H 1 H multiplet multiplet 8. 6. 4. 3. 1 nnm 2. 2. 3, O:
Compound A is treated with a mixture of nitric and sulfuric acids to generate Compound B. The 1H-NMR spectrum of B shows two singlets, one at 2.52 pm and one at 8.13 ppm. The 13C-NMR spectrum of B shows five signals. The mass spectrum of B shows a peak at m/z = 260 and another peak at m/z = 262; the relative height of the two peaks is 1:1 respectively. - Identify compound B, explaining your reasoning

Chapter 19 Solutions

Organic Chemistry (9th Edition)

Ch. 19.10B - Propose a mechanism for nitration of pyridine at...Ch. 19.10B - Prob. 19.12PCh. 19.10C - Prob. 19.13PCh. 19.10C - Prob. 19.14PCh. 19.11 - Propose a mechanism to show the individual...Ch. 19.11 - Prob. 19.16PCh. 19.12 - Give the products expected from the following...Ch. 19.13 - Prob. 19.18PCh. 19.13 - Prob. 19.19PCh. 19.14 - Prob. 19.20PCh. 19.15 - Prob. 19.21PCh. 19.15 - Prob. 19.22PCh. 19.16 - Prob. 19.23PCh. 19.17 - Prob. 19.24PCh. 19.17 - Prob. 19.25PCh. 19.18 - Prob. 19.26PCh. 19.19 - Prob. 19.27PCh. 19.20A - Addition of one equivalent of ammonia to...Ch. 19.20A - Prob. 19.29PCh. 19.20B - Show how you would accomplish the following...Ch. 19.20C - Prob. 19.31PCh. 19 - For each compound, 1. classify the...Ch. 19 - Prob. 19.33SPCh. 19 - Within each structure, rank the indicated...Ch. 19 - In each pair of compounds, select the stronger...Ch. 19 - Which of the following compounds are capable of...Ch. 19 - Complete the following proposed acid-base...Ch. 19 - Predict the products of the following reactions:...Ch. 19 - Prob. 19.39SPCh. 19 - Show how m-toluidine can be converted to the...Ch. 19 - The mass spectrum of tert-butylamine follows shows...Ch. 19 - Prob. 19.42SPCh. 19 - The following drugs are synthesized using the...Ch. 19 - Prob. 19.44SPCh. 19 - Synthesize from benzene. (Hint: All of these...Ch. 19 - Propose mechanisms for the following reactions.Ch. 19 - Prob. 19.47SPCh. 19 - Prob. 19.48SPCh. 19 - Prob. 19.49SPCh. 19 - Show how you can synthesize the following...Ch. 19 - Prob. 19.51SPCh. 19 - The alkaloid coniine has been isolated from...Ch. 19 - A chemist is summoned to an abandoned...Ch. 19 - Pyrrole undergoes electrophilic aromatic...Ch. 19 - Prob. 19.55SPCh. 19 - Prob. 19.56SPCh. 19 - An unknown compound shows a weak molecular ion at...Ch. 19 - A compound of formula C11H16N2 gives the IR,...Ch. 19 - (A true story.) A drug user responded to an ad...Ch. 19 - Prob. 19.60SPCh. 19 - Prob. 19.61SPCh. 19 - Prob. 19.62SPCh. 19 - Prob. 19.63SPCh. 19 - Prob. 19.64SPCh. 19 - Prob. 19.65SP
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