Which of the following is the most stable conformation of the following compound?

Question

Quizplus · Accepted Answer

In conformation I, the bulky tert-butyl group is in an equatorial position, minimizing steric interactions. In conformation II and III, the tert-butyl group is in a gauche position with respect to one of the methyl groups, leading to steric strain. In conformation IV, the axial position of the tert-butyl group leads to unfavorable 1,3-diaxial interactions with the two axial methyl groups. Therefore, conformation I is the most stable.

Which of the Following Is the Most Stable Conformation of the Following