Unambiguous assessments of reaction paths for selected pericyclic reactions

[摘要] Four commonplace concerted reactions are examined using (i) correlation diagrams, (ii) frontier molecular orbital analyses for transition states, (iii) Zimmerman-Dewar analyses for transition states and (iv) modified Zimmerman-Dewar analyses for transition states. Only the latter approach is consistently satisfactory.

[关键词] Hückel-Möbius transition states;correlation diagrams;Frontier-orbital analyses;modified Zimmerman-Dewar arguments