Substituent effects on the dehydration of arene hydrates in aqueous solution
作者:Michelle J. O'Mahony、Rory A. More O'Ferrall、Derek R. Boyd、Casey M. Lam、AnnMarie C. O'Donoghue
DOI:10.1002/poc.3174
日期:2013.12
benzenium ion in which direct mesomeric interaction with the substituent occurs, presumably permitted by the coplanar arrangement of the diene and carbocation centre in the intermediate. Data points for 2‐substituted arene hydrates (13f, 13g, 13h, 13i) deviate negatively from the Hammett plot as direct mesomeric interaction with the substituent is not possible in the corresponding benzenium intermediates