The barrier heights in this work generally agree with those previously published, though with a few slight differences (see Table ). For βEpoxyFromγ, our reaction barrier is 5 kJ/mol and 15 kJ/mol lower than the barriers computed by Lizardo-Huerta et al. and Sun et al., respectively. This may be due to the presence of intramolecular hydrogen bonding in the TS conformers in this work and that of Lizardo-Huerta et al. but not in Sun et al. For β-γHO2elimFromRO2, the barrier in this work is 10 kJ/mol lower than the rate computed by Sun et al., but only 3 kJ/mol lower than the barrier computed by Lizardo-Huerta et al. The barrier height for βHO2elimFromα determined in this study is between those calculated in the other two studies. The calculated barriers for the rest of the reactions fell within 8 kJ/mol of those in the other studies.