OH H3C `CH3 2-isopropyl-5-methylcyclohexanol "here are four cis,trans isomers for 2-isopropyl-5-methylcyclohexanol, where the cis,trans designations of the substituents are made elative to the OH group: • up, up, up (cis,cis) • up, up, down (cis,trans) • up, down, down (trans,cis) • up, down, up (trans,trans) Consider the most stable chair for each of these isomers, and then draw the most stable and least stable isomer based on a comparison of ne best chair for each one.

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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CH3
5
OH
H3C
`CH3
2-isopropyl-5-methylcyclohexanol
There are four cis,trans isomers for 2-isopropyl-5-methylcyclohexanol, where the cis,trans designations of the substituents are made
relative to the OH group:
• up, up, up (cis,cis)
• up, up, down (cis,trans)
• up, down, down (trans,cis)
• up, down, up (trans,trans)
Consider the most stable chair for each of these isomers, and then draw the most stable and least stable isomer based on a comparison of
the best chair for each one.
• To simplify matters, consider only axial vs equatorial energies of the groups (i.e. do not worry about the interactions between
the groups, which in reality is also important).
• Use the wedge/hash bond tools to indicate stereochemistry where it exists.
• You do not have to explicitly draw H atoms.
• Use “flat" representations of rings, not chairs, in your drawing.
Transcribed Image Text:CH3 5 OH H3C `CH3 2-isopropyl-5-methylcyclohexanol There are four cis,trans isomers for 2-isopropyl-5-methylcyclohexanol, where the cis,trans designations of the substituents are made relative to the OH group: • up, up, up (cis,cis) • up, up, down (cis,trans) • up, down, down (trans,cis) • up, down, up (trans,trans) Consider the most stable chair for each of these isomers, and then draw the most stable and least stable isomer based on a comparison of the best chair for each one. • To simplify matters, consider only axial vs equatorial energies of the groups (i.e. do not worry about the interactions between the groups, which in reality is also important). • Use the wedge/hash bond tools to indicate stereochemistry where it exists. • You do not have to explicitly draw H atoms. • Use “flat" representations of rings, not chairs, in your drawing.
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