Question & Answer - Isolated Study

Chemistry

Extracted Text:
For the compound below please choose the correct set of chair and flipped chair conformations: OH A B 0 D он HO. HO OH HO OH OH

Answer

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Reason: the molecule is a trans-1,2-disubstituted cyclohexane (i-propyl up, OH down). In any given chair, one substituent must be axial and the other equatorial. The lowest-energy chair has the bulky isopropyl group equatorial and the OH axial, and after a ring flip they interchange: i-propyl becomes axial and OH equatorial. Option B shows exactly this pair of chairs.