試題詳解

43. Which of the following describes the most stable conformation of trans-1-isopropyl-3-methylcyclohexane?
(A) Both groups are equatorial.
(B) Both groups are axial.
(C) The isopropyl group is equatorial and the methyl group is axial.
(D) The isopropyl group is axial and the methyl group is equatorial.
(E) none of the above