2,5-Diphenyl-3-thiabicyclo-[4.4.1]undeca-1,5,7,9-tetraene-4-one, an eleven-π-electron hetero[10]annulenone, from a Mesoionic dithiolone
Abstract
The title compound (7), a potentially aromatic heterocyclic system, has been prepared from the cycloadduct of the mesoionic dithiolone (1) with benzocyclopropene.