Organic Chemistry (9th Edition)
9th Edition
ISBN: 9780321971371
Author: Leroy G. Wade, Jan W. Simek
Publisher: PEARSON
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Question
Chapter 7, Problem 7.48SP
Interpretation Introduction
Interpretation: The number that represents the actual energy difference in the given energy differences is to be stated.
Concept introduction: During dehydrohalogenation (removal of hydrogen halide) reaction the
To determine: The number that represents the actual energy difference in the given energy differences.
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Students have asked these similar questions
Compounds 1 and 2 were prepared, and the difference in their heats of combustion was found to be 17.2 kJ/mol (J. Am. Chem. Soc.
1961, 83, 606-614):
H
H
1
Shown below are the lowest-energy conformations of compounds 1 and 2. Identify which drawing matches which compound, and
identify which compound has the larger heat of combustion.
H
H
H
H
|||I
2
H
4
H
H
The first drawing is compound 1, and compound 1 has a larger heat of combustion because it is the less stable compound.
O The first drawing is compound 2, and compound 2 has a larger heat of combustion because it is the less stable compound.
The first drawing is compound 2, and compound 2 has a larger heat of combustion because it is the more stable compound.
The first drawing is compound 1, and compound 1 has a larger heat of combustion because it is the more stable compound.
Identify the most stable, second most stable, and least stable conformation
resulting from rotation about the bond indicated by the purple arrow.
Assume, in this context, that the methoxy group is sterically smaller than the
methyl group, an assumption that is supported by the fact that methoxy
groups induce less axial strain than methyl groups in cyclohexane
conformations.
H
H CH₂
CH₂
QOCH, HIC DOCH, HIC
H₂C
H₂C
A
Most stable
Second most stable
OCH₂
Least stable
HH
с
H₂
OCH H₂C
[Choose]
[Choose]
[Choose ]
OCH₂
CH₂
D
H₂C+
HH
носна
H₂C
H₂C
H
H
H
OCH₂
Why is the bond dissociation energy for the C–C bond in ethane much higher than the bond dissociation energy for the labeled C–C bond in but-1-ene?
Chapter 7 Solutions
Organic Chemistry (9th Edition)
Ch. 7.3A - Prob. 7.1PCh. 7.3A - Prob. 7.2PCh. 7.3B - Draw five more compounds of formula C4H6NOC1.Ch. 7.3B - For each of the following molecular formulas,...Ch. 7.4 - Give the systematic (IUPAC) names of the following...Ch. 7.5B - The following names are all incorrect. Draw the...Ch. 7.5B - Prob. 7.8PCh. 7.5B - a. How many stereogcmc double bonds are in...Ch. 7.6 - Teflon-coated frying pans routinely endure...Ch. 7.7B - Prob. 7.11P
Ch. 7.8B - Use the data in Table7-2 to predict the energy...Ch. 7.8C - Prob. 7.13PCh. 7.8E - Explain why each of the following alkenes is...Ch. 7.8F - Prob. 7.15PCh. 7.10 - Prob. 7.16PCh. 7.10A - SN1 substitution and E1 elimination frequently...Ch. 7.10C - Prob. 7.18PCh. 7.10C - Prob. 7.19PCh. 7.10C - Prob. 7.20PCh. 7.11 - Prob. 7.21PCh. 7.11 - Prob. 7.22PCh. 7.12 - Prob. 7.23PCh. 7.12 - Prob. 7.24PCh. 7.13 - Prob. 7.25PCh. 7.14B - Prob. 7.26PCh. 7.14B - Make models of the blowing compounds, and predict...Ch. 7.15 - Prob. 7.28PCh. 7.15 - Prob. 7.29PCh. 7.15 - Prob. 7.30PCh. 7.15 - Prob. 7.31PCh. 7.16 - Predict the major and minor elimination products...Ch. 7.17B - Predict the products and mechanisms of the...Ch. 7.18 - Propose mechanisms for the following reactions.Ch. 7.18 - Prob. 7.35PCh. 7.19B - The dehydrogenation of butane to trans-but-2-ene...Ch. 7.19B - Prob. 7.37PCh. 7.19B - Prob. 7.38PCh. 7.19B - Prob. 7.39PCh. 7 - Prob. 7.40SPCh. 7 - Prob. 7.41SPCh. 7 - Prob. 7.42SPCh. 7 - Prob. 7.43SPCh. 7 - Prob. 7.44SPCh. 7 - Prob. 7.45SPCh. 7 - Prob. 7.46SPCh. 7 - The energy difference between cis- and...Ch. 7 - Prob. 7.48SPCh. 7 - Prob. 7.49SPCh. 7 - Prob. 7.50SPCh. 7 - What halides would undergo E2 dehydrohalogenation...Ch. 7 - Prob. 7.52SPCh. 7 - Prob. 7.53SPCh. 7 - Write a balanced equation for each reaction,...Ch. 7 - Prob. 7.55SPCh. 7 - Using cyclohexane as your starting material, show...Ch. 7 - Show how you would prepare cyclopentene from each...Ch. 7 - Prob. 7.58SPCh. 7 - E1 eliminations of alkyl halides are rarely useful...Ch. 7 - Prob. 7.60SPCh. 7 - Propose mechanisms for the following reactions....Ch. 7 - Prob. 7.62SPCh. 7 - Prob. 7.63SPCh. 7 - Prob. 7.64SPCh. 7 - Prob. 7.65SPCh. 7 - Prob. 7.66SPCh. 7 - Prob. 7.67SPCh. 7 - Prob. 7.68SPCh. 7 - Prob. 7.69SPCh. 7 - Explain the dramatic difference in rotational...Ch. 7 - One of the following dichloronorbornanes undergoes...Ch. 7 - A graduate student wanted to make...Ch. 7 - Prob. 7.73SPCh. 7 - Prob. 7.74SPCh. 7 - Prob. 7.75SPCh. 7 - Prob. 7.76SP
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