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Question
Which is the most stable chair conformer of this compound?
Which is the most stable chair conformer of this compound?
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Solution
The correct option is B
The given compound is cis- 1, 4 disubstituted compound
In (a), both substituents are at equatorial position but they are trans to each other.
In (c), both substituents are at equatorial position but again they are trans to each other.
In (d), both substitutent are trans to each other and at axial position.
In (b), bulky ethyl group it at equatorial position and methyl group at axial position and they cis to each other. Hence, this is the stable conformer of the given compound.
The given compound is cis- 1, 4 disubstituted compound
In (a), both substituents are at equatorial position but they are trans to each other.
In (c), both substituents are at equatorial position but again they are trans to each other.
In (d), both substitutent are trans to each other and at axial position.
In (b), bulky ethyl group it at equatorial position and methyl group at axial position and they cis to each other. Hence, this is the stable conformer of the given compound.
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