JOURNAL OF ORGANIC CHEMISTRY, cilt.75, sa.6, ss.2115-2118, 2010 (SCI-Expanded)
The origins of the boat transition state preference in the Ireland-Claisen rearrangements Studied experimentally by Kishi and co-workers have been explored computationally with Density Functional Theory. Steric interactions in the chair transition states were identified as the principal reason for the boat transition state preference.