Which of the following structure will be produced when a 'ring flip' occurs in the chair form of the following compound ?
A
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B
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C
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D
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Solution
The correct option is B Ring flipping of a conformer is an equilibrium process, where all axial bonds are converted to equatorial and all equatorial bonds are converted to axial bonds. When the given compound undergoes ring flippin: Substituent at C1 gets converted from equatorial to axial, substituent at C3 gets converted from equatorial to axial and substituent at C4 gets converted from axial to equatorial.
Therefore, the correct structure after ring flipping of the given compound is (b)