title: Valence isomerization of cyclohepta-1,3,5-triene and its heteroelement analogues.
abstract: The valence isomerization of the all-carbon and heteroelement analogues of cyclohepta-1,3,5-triene into the corresponding bicyclo[4.1.0]hepta-2,4-dienes is reviewed to show the impact of the heteroatom on the stability of both valence isomers. The focus is on the parent systems and their synthetic applications.
authors.affiliation: Department of Chemistry and Pharmaceutical Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV, Amsterdam, The Netherlands.
authors.forename: Helen
authors.initials: H
authors.lastname: Jansen
authors.forename: J Chris
authors.initials: JC
authors.lastname: Slootweg
authors.forename: Koop
authors.initials: K
authors.lastname: Lammertsma