Mechanisms of Acid−Base Catalysis of <i>β</i>-Elimination Reactions in Systems Activated by a Pyridine Ring
作者:Sergio Alunni、Laura Ottavi
DOI:10.1021/jo030352z
日期:2004.4.1
deprotonation with an E1cb mechanism. The comparison with previously studied reactions in acetohydroxamate/acetohydroxamic acid buffer confirms this assignment. The high proton activating factor, PAF, value observed (PAF = 1.2 × 10 6 with isomer 1 in quinuclidine/quinuclidinium buffer) can be explained with the high stability by the resonance of the intermediate carbanion.