Concept explainers
(a)
Interpretation: The relation between given pair of compounds is to be determined.
Concept introduction: The stereogenic centers with
Enantiomer of a compound has opposite configuration at stereogenic centers. Diastereomers of a compound have at least one stereogenic centre with same configuration and at least one with opposite configuration.
Answer to Problem 5.62P
The given pair of compounds is enantiomers.
Explanation of Solution
The given pair of compounds is,
Figure 1
The given compounds have same connectivity of atoms or groups but have opposite configuration at the stereogenic centre. Hence, the given pair of compounds is enantiomers.
The given pair of compounds is enantiomers.
(b)
Interpretation: The relation between given pair of compounds is to be determined.
Concept introduction: The stereogenic centers with
Enantiomer of a compound has opposite configuration at stereogenic centers. Diastereomers of a compound have at least one stereogenic centre with same configuration and at least one with opposite configuration.
Answer to Problem 5.62P
The given pair of compounds is constitutional isomers.
Explanation of Solution
The molecular formula of both given compounds is
The given pair of compounds is constitutional isomers.
(c)
Interpretation: The relation between given pair of compounds is to be determined.
Concept introduction: The stereogenic centers with
Enantiomer of a compound has opposite configuration at stereogenic centers. Diastereomers of a compound have at least one stereogenic centre with same configuration and at least one with opposite configuration.
Answer to Problem 5.62P
The given pair of compounds is diastereomers.
Explanation of Solution
The given pair of compounds is,
Figure 2
The given compounds have one stereogenic centre with same configuration and one with opposite configuration as shown in Figure 2. Hence, the given pair of compounds is diastereomers.
The given pair of compounds is diastereomers.
(d)
Interpretation: The relation between given pair of compounds is to be determined.
Concept introduction: The stereogenic centers with
Enantiomer of a compound has opposite configuration at stereogenic centers. Diastereomers of a compound have at least one stereogenic centre with same configuration and at least one with opposite configuration.
Answer to Problem 5.62P
The given pair of compounds is not isomers of each other.
Explanation of Solution
The molecular formula of given compounds is different from the each other. The molecular formula of one is
The given pair of compounds is not isomers of each other.
(e)
Interpretation: The relation between given pair of compounds is to be determined.
Concept introduction: The stereogenic centers with
Enantiomer of a compound has opposite configuration at stereogenic centers. Diastereomers of a compound have at least one stereogenic centre with same configuration and at least one with opposite configuration.
Answer to Problem 5.62P
The given pair of compounds is enantiomers.
Explanation of Solution
The given pair of compounds is,
Figure 3
The given compounds have opposite configurations at the two stereogenic centre as shown in Figure 3. Hence, the given pair of compounds is enantiomers.
The given pair of compounds is enantiomers.
(f)
Interpretation: The relation between given pair of compounds is to be determined.
Concept introduction: The stereogenic centers with
Enantiomer of a compound has opposite configuration at stereogenic centers. Diastereomers of a compound have at least one stereogenic centre with same configuration and at least one with opposite configuration.
Answer to Problem 5.62P
The given pair of compounds is enantiomers.
Explanation of Solution
The given pair of compounds is,
Figure 4
In the given compounds,
Thus, the two compounds have opposite configurations. Hence, the given pair of compounds is enantiomers.
The given pair of compounds is enantiomers.
(g)
Interpretation: The relation between given pair of compounds is to be determined.
Concept introduction: The stereogenic centers with
Enantiomer of a compound has opposite configuration at stereogenic centers. Diastereomers of a compound have at least one stereogenic centre with same configuration and at least one with opposite configuration.
Answer to Problem 5.62P
The given pair of compounds is identical.
Explanation of Solution
The given pair of compounds is,
Figure 5
The given compounds have same connectivity and same configurations at the two stereogenic centre as shown in Figure 5. Hence, the given pair of compounds is identical.
The given pair of compounds is identical.
(h)
Interpretation: The relation between given pair of compounds is to be determined.
Concept introduction: The stereogenic centers with
Enantiomer of a compound has opposite configuration at stereogenic centers. Diastereomers of a compound have at least one stereogenic centre with same configuration and at least one with opposite configuration.
Answer to Problem 5.62P
The given pair of compounds is diastereomers.
Explanation of Solution
The given pair of compounds is,
Figure 6
The given compounds have one stereogenic centre with same configuration and one with opposite configuration as shown in Figure 6. Hence, the given pair of compounds is diastereomers.
The given pair of compounds is diastereomers.
(i)
Interpretation: The relation between given pair of compounds is to be determined.
Concept introduction: The stereogenic centers with
Enantiomer of a compound has opposite configuration at stereogenic centers. Diastereomers of a compound have at least one stereogenic centre with same configuration and at least one with opposite configuration.
Answer to Problem 5.62P
The given pair of compounds is diastereomers.
Explanation of Solution
The given pair of compounds is,
Figure 7
Two methyl groups present on the six membered ring are above the plane. However, the methyl groups of chair conformation are present trans to each other. Therefore, the given pair of compounds represents diastereomers.
The given pair of compounds is diastereomers.
(j)
Interpretation: The relation between given pair of compounds is to be determined.
Concept introduction: The stereogenic centers with
Enantiomer of a compound has opposite configuration at stereogenic centers. Diastereomers of a compound have at least one stereogenic centre with same configuration and at least one with opposite configuration.
Answer to Problem 5.62P
The given pair of compounds is constitutional isomers.
Explanation of Solution
The given pair of compounds is,
Figure 8
In the given compounds, the position of
The given pair of compounds is constitutional isomers.
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Chapter 5 Solutions
Organic Chemistry
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