An Antibody‐Catalyzed 1,2‐Rearrangement of CarbonCarbon Bonds

Abstract

The transition state of the dienone-phenol rearrangement of 1 to 2 is mimicked by hapten 3. An immune response to 3 yielded an antibody (62C7) which was found to catalyze the rearrangement efficiently. It was shown that 62C7 does not act as a simple acid catalyst, but rather selectively stabilizes the charge distribution in the transition state.