Hydrogen shift and ring closure instead of deprotonation: Cycloheptatriene (2) does not show the photoreactivity expected from MO considerations, in contrast with the dibenzo derivative 1. Semiempirical calculations trace this difference to the crossing of states on relaxation of the excited state of 2.
No takes yet. Share an insight, caveat, or question.
Steuhl et al. (1995) studied this question.
Synapse has enriched 2 closely related papers on similar clinical questions. Consider them for comparative context: