Which one of the following conformation of cyclohexane is the least st – InterviewSolution

1.	Which one of the following conformation of cyclohexane is the least stable
Answer» Half-chair Boat Twisted-boat Chair SOLUTION :The half-chair can be attained by moving the carbons `C_(1), C_(2), C_(3)` and `C_(4)` of a chair conformation into one plane and `C_(6)` above the plane and `C_(5)` below the plane. It CONTAINS many ECLIPSED carbon-hydrogenbonds. The half chair conformer lies about 10.8 kcal above the chair FORM.

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