TOPOLOGICAL ASPECTS OF CHEMICAL-REACTIVITY - CONCERTEDNESS IN PERICYCLIC-REACTIONS

The technique of the so-called More O'Ferrall diagrams was modified by incorporating the framework of recently introduced topological theory of chemical reactivity. On the basis of this modification, a new simple criterion was introduced, allowing the unequivocal classification of the mechanisms of pericyclic reactions from the point of view of concertedness and/or nonconcertedness.