Oxadisilole-fused isobenzofurans. Synthesis and characterization of oxadisilole-substituted acenes.

Mono- and bis-oxadisilole-fused isobenzofurans were first synthesized and isolated. A series of mono-, bis-, and tris-oxadisilole-substituted acenes were then synthesized by benzyne Diels−Alder reactions with the isobenzofurans. The photophysical, redox, and thermal properties of these new acenes were characterized.