Communication
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Existence of a New C6H6 Isomer: Tricyclo[3.1.0.02,6]hex-1(6)-ene†
†
This work was supported by the Deutsche Forschungsgemeinschaft, the Fonds der Chemischen Industrie, and the Fonds de la Recherche Fondamentale Collective.
Graphical Abstract
“Isobenzvalene” (1), a very highly strained molecule, has now been trapped in the form of the Diels-Alder adduct (2) with anthracene. The structure of (2) is also unusual: C-11 and C-16 are both located outside the tetrahedron formed by their four substituents (“inverted tetrahedron”).
