Most stable conformation

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Chem_Mod
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Most stable conformation

Postby Chem_Mod » Mon Oct 03, 2011 2:35 am

Why is the most stable conformation for cis-1-tert-butyl-4-methylcyclohexane has a methyl axial and a tert-butyl equatorial. I know that tert-butyl should be equatorial, because it is the largest substituent, but why can't both substituents be equatorial for the most stable conformation?
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cis-1-tert-butyl-4-methylcyclohexane (no H).png
cis-1-tert-butyl-4-methylcyclohexane

Chem_Mod
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Re: Most stable conformation

Postby Chem_Mod » Mon Oct 03, 2011 2:35 am

If you do that, you will have a trans conformation (axial up and axial down).


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