Which of the following structures represents | vedclass

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(A) For $(1S, 2S, 4R)-1,2,4$-trimethylcyclohexane,we analyze the chair conformations.In the chair form,substituents prefer the equatorial position to

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(A) For $(1S, 2S, 4R)-1,2,4$-trimethylcyclohexane,we analyze the chair conformations.In the chair form,substituents prefer the equatorial position to minimize $1,3-$diaxial interactions.For the $(1S, 2S, 4R)$ isomer,the configuration requires the methyl groups at positions $1, 2,$ and $4$ to be arranged such that they can occupy equatorial positions.Specifically,the most stable conformation is the one where two methyl groups are in the equatorial position and one is in the axial position,as this minimizes steric strain compared to other possible chair conformations.Therefore,the structure with $2$ methyl groups equatorial and $1$ axial is the lowest-energy form.

Which of the following structures represents the lowest-energy form of $(1S, 2S, 4R)-1,2,4$-trimethylcyclohexane?

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