Abstract
Palladium-catalyzed [2+2+2] cyclotrimerization reactions between benzyne and oxadisilole fused oxabicyclic alkenes afforded the exo-adducts. Deoxygenation with BF 3·OMe 2 yielded mono- and bis-oxadisilole fused benzo[ b]triphenylene. The photophysical properties of the oxadisilole fused benzo[ b]triphenylenes were characterized.
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