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Question
Which is the stable conformation of the given compound?
Which is the stable conformation of the given compound?
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Solution
The correct option is B
When a substitutent is present at axial position, the conformer will be less stable because it has 1, 3 diaxial interaction which is a steric interaction of axial group. This will increase the energy of the conformer and make it less stable.
When a substituent is presnt at equatorial position, the conformer is stable because the substituent has more room and fewer steric interactions when it is at equatorial position.
In conformer (b), both methyl and tert-butyl groups are in equatorial position.
In conformer (a), methyl group is in axial position.
In conformer (c) and (d), tert-butyl group is in axial position.
Thus,
conformer (b) is the stable conformer.
When a substitutent is present at axial position, the conformer will be less stable because it has 1, 3 diaxial interaction which is a steric interaction of axial group. This will increase the energy of the conformer and make it less stable.
When a substituent is presnt at equatorial position, the conformer is stable because the substituent has more room and fewer steric interactions when it is at equatorial position.
In conformer (b), both methyl and tert-butyl groups are in equatorial position.
In conformer (a), methyl group is in axial position.
In conformer (c) and (d), tert-butyl group is in axial position.
Thus,
conformer (b) is the stable conformer.
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