Concept explainers
(a)
Interpretation:
For the given disubstituted cyclohexane, it is to be determined if the cis or trans isomer is more stable.
Concept introduction:
In the disubstituted cyclohexane, the substituents which are on the opposite side of the ring are trans to each other and the substituents which are on the same side are cis to each other. In the case of disubstituted cyclohexane, the conformation in which maximum substituents are in equatorial position is favored and is more stable.
(b)
Interpretation:
For the given disubstituted cyclohexane, it is to be determined if the cis or trans isomer is more stable.
Concept introduction:
In the disubstituted cyclohexane, the substituents which are on the opposite side of the ring are trans to each other and the substituents which are on the same side are cis to each other. In the case of disubstituted cyclohexane, the conformation in which maximum substituents are in equatorial position is favored and is more stable.
(c)
Interpretation:
For the given disubstituted cyclohexane, it is to be determined if the cis or trans isomer is more stable.
Concept introduction:
In the disubstituted cyclohexane, the substituents which are on the opposite side of the ring are trans to each other and the substituents which are on the same side are cis to each other. In the case of disubstituted cyclohexane, the conformation in which maximum substituents are in equatorial position is favored and is more stable.

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Chapter 4 Solutions
EBK ORGANIC CHEMISTRY: PRINCIPLES AND M
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