Electrophilic Reactivities of α,β‐Unsaturated Iminium Ions

Abstract

How fast do nucleophiles add to iminium ions? Kinetic studies of the reactions of seven iminium ions 1 with cyclic ketene acetals 2 rendered electrophilicity parameters E for these iminium ions. Because N and s parameters are known for numerous nucleophiles, the correlation log k(20 °C)=s(N+E) makes it possible to calculate rate constants for nucleophilic attack at the iminium ions 1. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.