76319-76-1Relevant academic research and scientific papers
Acenazulenediones
Bindl, Johann,Daub, Joerg,Hasenhuendl, Adelheid,Meinert, Margarethe,Rapp, Knut M.
, p. 2408 - 2417 (2007/10/02)
Reactions of 8-methoxyheptafulvene (1) and quinones 2 give in -cycloadditions hydroacenazulenediones 3, which are immediately transformed to acenazulenediones 4 and 5.The yields in the reaction sequence depend on the half-wave-reduction-potentials (E1/2) of 2.Only compounds 2 with E1/2 (in acetonitrile, vs s.c.e.) lower than -0.5 V lead to cycloadducts in reasonable yields.Properties of the ground and excited states of 4 and 5 are characterized by spectroscopic methods and molecular-orbital-calculations.
