... Volume 88. Number 8 December 1988 The Thermal, Aliphatic Claisen Rearrangement FREDERICK E. ZIEGLER ... Historical Overview 111. Mechanistic Aspects A. Kinetics B. Retro-Clalsen Rearrangement C. Competitive Rearrangements 1. [3.3] Claisen vs [2,3] Wmig ...