ORGANIC CHEM.(LL)W/STD GDE.+CONNECT PKG
5th Edition
ISBN: 9781260858129
Author: SMITH
Publisher: MCG
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Chapter 13, Problem 13.56P
Interpretation Introduction
Interpretation: The structures for
Concept introduction: IR spectroscopy is used to identify the functional group present in a compound. Each and every bond vibrates at a characteristic frequency.
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Benzonitrile (C6H5CN) is reduced to two different products depending on the reducing agent used. Treatment with lithium aluminum hydride followed by water forms K, which has a molecular ion in its mass spectrum at 107 and the following IR absorptions: 3373, 3290, 3062, 2920, and 1600 cm-1. Treatment with a milder reducing agent forms L, which has amolecular ion in its mass spectrum at 106 and the following IR absorptions: 3086, 2820, 2736, 1703, and 1600 cm-1. L shows fragments in its mass spectrum at m/z = 105 and 77. Propose structures for K and L and explain how you arrived at your conclusions.
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Chapter 13 Solutions
ORGANIC CHEM.(LL)W/STD GDE.+CONNECT PKG
Ch. 13 - What is the mass of the molecular ion formed from...Ch. 13 - Prob. 13.2PCh. 13 - Use the following information to propose a...Ch. 13 - Prob. 13.4PCh. 13 - What molecular ions would you expect for the...Ch. 13 - The mass spectrum of 2,3-dimethylpentane also...Ch. 13 - The base peak in the mass spectrum of 2, 2,...Ch. 13 - (a) What mass spectral fragments are formed by ...Ch. 13 - What cations are formed in the mass spectrometer...Ch. 13 - The low-resolution mass spectrum of an unknown...
Ch. 13 - Benzene, toluene, and p-xylene BTX are often added...Ch. 13 - Prob. 13.12PCh. 13 - Prob. 13.13PCh. 13 - Prob. 13.14PCh. 13 - Prob. 13.15PCh. 13 - How do the IR spectra of the isomers cyclopentane...Ch. 13 - Problem 13.17 How do the three isomers of...Ch. 13 - Problem 13.18 What functional groups are...Ch. 13 - Problem-13.19 What are the major IR absorptions in...Ch. 13 - Problem-13.20 What are the major IR absorptions in...Ch. 13 - Problem-13.21 Which of the following possible...Ch. 13 - Problem-13.22 Propose structures consistent with...Ch. 13 - 13.23 What major IR absorptions are present above ...Ch. 13 - Problem-13.24 The mass spectrum of the following...Ch. 13 - Prob. 13.25PCh. 13 - Which compound gives a molecular ion at m/z= 122,...Ch. 13 - Propose two molecular formulas for each molecular...Ch. 13 - Propose four possible structures for a hydrocarbon...Ch. 13 - Problem-13.29 What is the molecular formula for...Ch. 13 - Problem-13.30 Propose a molecular formula for rose...Ch. 13 - 13.31 Match each structure to its mass spectrum
Ch. 13 - 13.32 Propose two possible structures for a...Ch. 13 - 13.33 What cations are formed in the mass...Ch. 13 - 13.34 and have the same molecular ion in the...Ch. 13 - 13.35 For each compound, assign likely...Ch. 13 - Prob. 13.36PCh. 13 - 13.37 Propose a structure consistent with each...Ch. 13 - 13.38 A low-resolution mass spectrum of the...Ch. 13 - 13.39 Primary alcohols often show a peak in their...Ch. 13 - 13.40 Like alcohols, ethers undergo α cleavage by...Ch. 13 - 13.41 Which of the highlighted bonds absorbs at...Ch. 13 - 13.42 What major IR absorptions are present above ...Ch. 13 - 13.43 How would each of the following pairs of...Ch. 13 - 13.44 Morphine, heroin, and oxycodone are three...Ch. 13 - 13.45 Reduction of cyclohex-2-enone can yield...Ch. 13 - Prob. 13.46PCh. 13 - 13.47 Match each compound to its IR spectrum
Ch. 13 - 13.48 Propose possible structures consistent with...Ch. 13 - A chiral hydrocarbon X exhibits a molecular ion at...Ch. 13 - 13.50 A chiral compound has a strong absorption...Ch. 13 - 13.51 Treatment of benzoic acid with followed by...Ch. 13 - 13.52 Treatment of benzaldehyde with in aqueous ...Ch. 13 - Prob. 13.53PCh. 13 - 13.54 Reaction of 2-methylpropanoic acid with ...Ch. 13 - 13.55 Reaction of pentanoyl chloride with lithium...Ch. 13 - Prob. 13.56PCh. 13 - 13.57 Treatment of anisole with and forms P,...Ch. 13 - 13.58 Reaction of with forms compound ,...Ch. 13 - Problem-13.59 The carbonyl absorption of an amide...Ch. 13 - Prob. 13.60PCh. 13 - Problem-13.61 Explain why a ketone carbonyl...Ch. 13 - 13.62 Oxidation of citronellol, a constituent of...
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