The D-site loses this structure due to distortion by Glu and Asp side chains in the mechanism of lysozyme. The Zimmerman-Traxler model predicts the aldol reaction's stereochemistry by assuming the transition state has this specific structure and analyzing the steric interactions. Transition states with this structure are thermodynamically favored for [3+3]-rearrangements like the Claisen and (*) Cope rearrangements. The Newman projection for this conformation is fully staggered, while it is fully gauche for a different conformation that experiences "flagpole" interactions. Rings in (10[1])this conformation can undergo (10[1])a "flip" (10[1])that places bulky substituents on one of the six equatorial positions to avoid steric hindrance. For 10 points, the boat conformation is contrasted with what stablest conformation of cyclohexane? (10[1])■END■ (0[2])